CN114814381A - Electromagnetic field spatial distribution measuring method and system - Google Patents

Abstract

The invention provides a method and system for measuring the spatial distribution of an electromagnetic field, comprising: acquiring position parameters of each position, and obtaining spatial coordinates corresponding to the position parameters according to the position parameters; receiving Rydberg atom probes at each position based on quantum effect conversion to be Measure the optical signal obtained by the electromagnetic field signal, and analyze the optical signal to restore it to the corresponding electromagnetic field parameters; combine the electromagnetic field parameters corresponding to each position with the spatial coordinates to construct the electromagnetic field spatial distribution of the preset area for output. The present invention can detect the electromagnetic field parameters and spatial coordinates of each position, and combine the electromagnetic field parameters with the spatial coordinates to obtain the electromagnetic field spatial distribution of the preset area for the user to view. The invention avoids the interference of the electromagnetic field spatial measurement system to the measured electromagnetic field to the greatest extent, so that the high-precision measurement of the measured electromagnetic field can be realized, and the high-precision measurement and construction of the electromagnetic field spatial distribution can be conveniently realized.

Description

Method and system for measuring spatial distribution of electromagnetic field

technical field

The invention relates to the technical field of electromagnetic field measurement, in particular to a method and system for measuring the spatial distribution of electromagnetic field.

Background technique

Atoms in the Rydberg excited state are called Rydberg atoms, which have the characteristics of high polarizability, low field ionization threshold and large electric dipole moment, and are very sensitive to external electromagnetic fields. The device that encapsulates Rydberg atoms in a small chamber at the end of the measuring rod for electromagnetic field measurement is called the Rydberg atom probe. The Rydberg atom probe is encapsulated with rubidium atomic gas as small as micron size, which can be used in MHz to Precise measurement of parameters such as the intensity, frequency and direction of the electromagnetic field of electromagnetic waves in the THz range.

Based on its quantum properties, the Rydberg atom probe can be used for high-precision electromagnetic field measurement. Compared with the traditional metal dipole antenna probe, it has less interference to the measured electromagnetic field, no need for calibration, small probe size, and measurement frequency. Wide range and so on. Not only academia has carried out a lot of research on it, but also the National Institute of Standards and Technology (NIST), China National Metrology Institute, Guangzhou Metrology Institute, etc. are also using the Rydberg atom probe to do so. Exploring benchmarks for electromagnetic field measurements. And companies such as Rydberg Technologies Inc. of the United States and Waco Optoelectronics of China have launched commercial products based on them.

In the prior art, the Rydberg atom probe is used for electromagnetic field measurement. Generally, the Rydberg atom probe is manually placed at a certain fixed position, the electromagnetic field at the position is measured, and then a certain position measuring device is used to measure the position of the probe. Take measurements. With this scheme, not only the measurement process is cumbersome, but also the spatial distribution of the electromagnetic field with high precision cannot be obtained.

Therefore, how to design a system that integrates the Rydberg atom probe and position measurement, acquires electromagnetic signals and position signals at the same time, and achieves the spatial distribution of electromagnetic fields in one-dimensional, two-dimensional or three-dimensional (1D, 2D, 3D) space Performing high-precision measurements and reconstructions has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method and system for measuring the spatial distribution of an electromagnetic field, which is used to solve the electromagnetic field measurement based on the Rydberg atom probe in the prior art, and the electromagnetic signal and the position signal are measured separately. , resulting in a cumbersome measurement process and the inability to obtain high-precision spatial distribution of the electromagnetic field.

In order to achieve the above object and other related objects, the present invention provides a method for measuring the spatial distribution of an electromagnetic field. The method is suitable for a Rydberg atom probe, and the Rydberg atom probe can move within a preset area, including:

Obtain the position parameters of each position, and obtain the spatial coordinates corresponding to the position parameters according to the position parameters;

Receive the optical signal obtained by converting the electromagnetic field signal to be measured by the Rydberg atom probe at each position based on the quantum effect, and analyze the optical signal to restore it to corresponding electromagnetic field parameters;

Combining the spatial coordinates with the electromagnetic field parameters corresponding to each position, the electromagnetic field spatial distribution of the preset area is constructed for output.

In an embodiment of the present invention, the obtaining the position parameters of each position, and obtaining the spatial coordinates of the position according to the position parameters includes: periodically transmitting a pulsed laser to the position where the Rydberg atom probe is located; wherein , the emission position of the pulsed laser is within the preset area and is known; obtain the reflected pulse spot position, calculate the deviation distance between the reflected pulse spot position and the preset calibration point; adjust the pulse according to the deviation distance The emission angle of the laser, until the emission optical path of the pulsed laser is parallel to the reflection optical path; calculate the time difference from the emission of the pulsed laser to the reception of the reflected pulsed spot, and obtain the emission position of the pulsed laser and the reed according to the time difference and the speed of light. For the distance of the Rydberg atom probe, the spatial coordinates of the location of the Rydberg atom probe are obtained according to the distance and the emission angle of the pulsed laser.

The present invention also provides an electromagnetic field spatial distribution measurement system, the system is applied to the Rydberg atom probe, and the Rydberg atom probe can move in a preset area, including:

A spatial positioning device for obtaining the position parameters of each position;

a positioning measurement control module, configured to obtain spatial coordinates corresponding to the position parameters according to the position parameters;

The probe measurement control module is used to receive the optical signal obtained by the Rydberg atom probe converting the electromagnetic field signal to be measured based on the quantum effect at each position, and analyze the optical signal to restore it to corresponding electromagnetic field parameters;

The reconstruction analysis module is used for combining the electromagnetic field parameters corresponding to each position with the spatial coordinates to construct the electromagnetic field spatial distribution of the preset area for output.

In an embodiment of the present invention, the spatial positioning device includes:

a pulsed laser transmitter, used for transmitting a pulsed laser to the spherical dielectric film mirror according to the control signal of the positioning measurement control module; wherein, the position of the pulsed laser transmitter is within a preset area and is known;

A spherical dielectric film mirror, fixedly connected with the Rydberg atom probe, for reflecting the incoming pulsed laser light;

a laser sensor board, used for receiving the pulsed spot reflected by the spherical dielectric film mirror, and transmitting the position information of the reflected pulsed spot to the positioning measurement control module;

a laser angle adjuster, used for adjusting the laser emission angle of the pulsed laser transmitter according to the control signal of the positioning measurement control module;

The positioning measurement control module is further configured to output a control signal to the pulsed laser transmitter; and is also configured to calculate the deviation of the reflected pulse spot position from the preset calibration point according to the reflected pulse spot position information distance, output a control signal to the laser angle adjuster according to the deviation distance, and adjust the emission angle of the pulsed laser until the emission optical path of the pulsed laser is parallel to the reflection optical path; wherein, the preset calibration point is located at the laser induction board;

It is also used to calculate the time difference from when the pulsed laser is emitted to when the reflected pulsed spot is received. According to the time difference and the speed of light, the distance between the emission position of the pulsed laser and the Rydberg atom probe is obtained. According to the distance and the pulse The emission angle of the laser is obtained, and the spatial coordinates of the position of the Rydberg atom probe are obtained.

In an embodiment of the present invention, a probe motion control module is further included, the probe motion control module is electrically connected with the Rydberg atom probe, and is used for moving the Rydberg atom probe.

In an embodiment of the present invention, it further includes a front-end interaction module for receiving user instructions and distributing the user instructions to the probe motion control module, the probe measurement control module and the positioning measurement control module;

It is also used for receiving the data transmitted by the reconstruction analysis module, and showing the electromagnetic field spatial distribution of the preset area to the user.

In an embodiment of the present invention, a data storage module is further included for storing the electromagnetic field parameters and the spatial coordinates, and providing the electromagnetic field parameters and the spatial coordinates to the reconstruction analysis module.

The present invention also provides a method for measuring the spatial distribution of an electromagnetic field. The method is suitable for a Rydberg atom probe, and the Rydberg atom probe can move within a preset area, including:

Receive the optical signal obtained by the Rydberg atom probe converting the electromagnetic field signal to be measured based on the quantum effect at each position, and analyze the optical signal to restore it to the corresponding electromagnetic field parameters; receive the Rydberg atom probe in each position. The captured image at the location is analyzed and processed to obtain the spatial coordinates of the location where the Rydberg atom probe is located; the electromagnetic field parameters corresponding to each location are combined with the spatial coordinates to obtain a preset The spatial distribution of the electromagnetic field in the area for output.

The present invention also provides an electromagnetic field spatial distribution measurement system, the system is applied to the Rydberg atom probe, and the Rydberg atom probe can move in a preset area, including:

The probe measurement control module is used to receive the optical signal obtained by the Rydberg atom probe converting the electromagnetic field signal to be measured based on the quantum effect at each position, and analyze the optical signal to restore it to corresponding electromagnetic field parameters;

a plurality of cameras, each of which is set at a different position in the preset area, and the position of each of the cameras is known;

Each of the cameras is used to photograph the Rydberg atomic probe at a certain position at the same time, and transmit the photographed images to the positioning measurement control module;

a positioning measurement control module, used for analyzing and calculating the captured image, and obtaining the spatial coordinates of the location of the Rydberg atom probe;

The reconstruction analysis module is used for combining the electromagnetic field parameters corresponding to each position with the spatial coordinates to construct the electromagnetic field spatial distribution of the preset area for output.

In an embodiment of the present invention, it further includes a data storage module for storing the electromagnetic field parameters, the captured image and the spatial coordinates, and providing the electromagnetic field parameters and the spatial coordinates to the replay. Structure analysis module.

As mentioned above, a method and system for measuring the spatial distribution of electromagnetic fields of the present invention have the following beneficial effects:

Move the Rydberg atom probe in the preset area, and detect the electromagnetic field parameters and spatial coordinates of each position, and combine the electromagnetic field parameters with the spatial coordinates to obtain the electromagnetic field spatial distribution of the preset area for users to view.

The invention avoids the interference of the electromagnetic field spatial measurement system to the measured electromagnetic field to the greatest extent, so that the high-precision measurement of the measured electromagnetic field can be realized, and the high-precision measurement and construction of the electromagnetic field spatial distribution can be conveniently realized.

Description of drawings

FIG. 1 shows a block diagram of an electrical connection disclosed in the first embodiment of the present invention.

FIG. 2 shows another electrical connection block diagram disclosed in the first embodiment of the present invention.

FIG. 3 is a block diagram showing the electrical connection of the front-end interaction module disclosed in the first embodiment of the present invention.

FIG. 4 is a block diagram showing the electrical connection of the spatial positioning device disclosed in the first embodiment of the present invention.

FIG. 5 is a schematic diagram showing the working principle of the spatial positioning device disclosed in the first embodiment of the present invention.

FIG. 6 shows a working flow chart disclosed in the first embodiment of the present invention.

FIG. 7 shows a flow chart of the work disclosed in the second embodiment of the present invention.

Component label description:

1-Rydberg atom probe; 2-Probe measurement control module; 3-Space positioning device; 4-Positioning measurement control module;

5-reconstruction analysis module; 6-probe motion control module; 7-data storage module; 8-front-end interaction module;

201-pulse laser transmitter; 202-spherical dielectric film mirror; 203-laser induction board; 204-laser angle adjuster.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.

It should be noted that the drawings provided in the following embodiments are only to illustrate the basic concept of the present invention in a schematic way, so the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation. For drawing, the type, quantity and proportion of each component can be arbitrarily changed during actual implementation, and the layout of components may also be more complicated.

Referring to FIG. 1 , the first embodiment of the present invention provides an electromagnetic field spatial distribution measurement system, which is applied to the Rydberg atom probe 1 , and the Rydberg atom probe 1 can move in a preset area, wherein the preset area and moving coordinate points can be set according to user needs, which is not limited in this scheme. The system includes: a probe measurement control module 2 , a spatial positioning device 3 , a positioning measurement control module 4 and a reconstruction analysis module 5 .

The probe measurement control module 2 is used to receive the optical signal obtained by the Rydberg atom probe 1 converting the electromagnetic field signal to be measured based on the quantum effect at each position, and analyze the optical signal to restore it to the corresponding electromagnetic field parameter; wherein, the electromagnetic field Parameters include the strength, direction, and frequency of the electromagnetic field.

In addition, the probe measurement control module 2 can also transmit the laser light required for measurement to the Rydberg atom probe 1 through an optical fiber, so as to drive and control the work of the Rydberg atom probe 1 .

In order to reduce the interference, the probe measurement control module 2 is connected to the Rydberg atom probe 1 through optical fiber. Using the low-loss and low-interference characteristics of the optical fiber, the probe can be manipulated to measure when the long-distance shielding measurement and control system interferes with the measured electromagnetic field.

The spatial positioning device 3 is used to accurately measure the position of the Rydberg atom probe 1 under the premise of micro-interference. The technical implementation scheme implemented by it can be selected in combination with specific usage scenarios and conditions. Potential technical schemes include: spherical dielectric film laser positioning scheme, optical multi-camera visual positioning scheme, satellite positioning anti-interference scheme, small precision inertial guidance scheme, etc.

In this embodiment, the spherical dielectric film laser positioning scheme is adopted and described in detail.

Referring to FIG. 4 , the spatial positioning device 3 includes a pulsed laser generator 201 , a spherical dielectric film mirror 202 , a laser sensor board 203 and a laser angle adjuster 204 .

The pulsed laser transmitter 201 is used for transmitting pulsed laser light to the spherical dielectric film mirror 202 according to the control signal of the positioning measurement control module 4; wherein, the position of the pulsed laser transmitter 201 is within a preset area, and the position is known of.

It should be noted that the pulsed laser transmitter can emit pulsed lasers in real time according to external control signals; it can also periodically emit pulsed lasers according to user settings to achieve real-time tracking of spherical dielectric film mirrors. In addition, in order to further reduce the interference of the laser emission on the measurement, the laser emission can be suspended during the measurement.

The spherical dielectric film mirror 202 is fixedly connected to the Rydberg atom probe 1 and is used for reflecting the incident pulsed laser light. In this scheme, the position of the Rydberg atom probe 1 can be obtained by locating the position of the spherical center of the mirror.

It should be noted that the spherical dielectric mirror (dielectric mirror) is composed of multiple layers of dielectrics with different refractive indices, and only strongly reflects electromagnetic waves near a selected frequency. In this embodiment, the target electromagnetic wave of the dielectric film is a laser in the visible light band, and its frequency is on the order of 10 ¹⁴ Hz, which is far from the operating frequency (10 ⁷ -10 ¹² Hz) of the Rydberg atom probe. Therefore, this reflection The mirror is almost transparent to the electromagnetic wave under test and produces very little interference.

The laser sensor board 203 is used to receive the pulsed light spot reflected by the spherical dielectric film mirror 202 , and transmit the reflected pulsed light spot position information to the positioning measurement control module 4 .

The laser angle adjuster 204 is used for adjusting the laser emission angle of the pulsed laser transmitter 201 according to the control signal of the positioning measurement control module 4 .

The positioning measurement control module 4 is used for obtaining the corresponding spatial coordinates of the position according to the position parameters collected by the spatial positioning device 3 .

The positioning measurement control module 4 is electrically connected to the pulsed laser transmitter 201 , the laser sensor board 203 and the laser angle adjuster 204 .

Please refer to FIG. 5 and FIG. 6 , the positioning measurement control module 4 is used to output a control signal to the pulsed laser transmitter 201 , and transmit the laser to the spherical dielectric film mirror 202 , and the laser sensor board 203 receives the pulse reflected by the spherical dielectric film mirror 202 , transmit the reflected pulse spot position information to the positioning measurement control module 4, and the positioning measurement control module 4 calculates the deviation distance between the reflected pulse spot position and the preset calibration point according to the position information, and adjusts the emission of the pulsed laser according to the deviation distance. angle, and repeat the above steps until the emission light path of the pulsed laser is parallel to the reflection light path.

Move the Rydberg atom probe 1 and repeat the above operations to obtain different position information and electromagnetic field information for the reconstruction analysis module 5 to construct a complete electromagnetic field spatial distribution.

It should be noted that during the movement of the Rydberg atom probe, the above-mentioned angle adjustment process of the pulsed laser keeps working, instead of stopping during the movement and restarting after the movement is completed, thus ensuring that the laser is always locked to the ball. Heart.

The preset calibration point is a pre-selected coordinate point on the laser sensor board 203. Since the distance between the spherical dielectric film mirror 202 and the pulsed laser transmitter 201 is far greater than the distance between the calibration point and the pulsed laser transmitter 201, When the reflected light spot falls on the calibration point, the incident light path of the laser is almost completely parallel to the reflected light path, which means that the pulsed laser transmitter 201 is almost facing the spherical center of the spherical dielectric film mirror 202 .

The positioning measurement control module 4 is also used to calculate the time difference from the emission of the pulsed laser light to the reception of the reflected pulsed spot, and obtain the distance between the emission position of the pulsed laser and the Rydberg atom probe 1 according to the time difference and the speed of light, and according to the distance and the pulsed laser to obtain the spatial coordinates of the position of the Rydberg atom probe 1.

Assuming that the time when the pulsed laser transmitter 201 emits laser light is T1, and the time when the laser sensor board 203 receives the reflected laser light is T2, the distance=(T2-T1)×light speed/2; combined with the angle of the pulsed laser transmitter 201 at this time , the spatial coordinates of the location of the Rydberg atom probe 1 can be calculated.

Continuing to explain, the reconstruction analysis module 5 is used to combine the electromagnetic signals corresponding to each position with the spatial coordinates to construct the spatial distribution of the electromagnetic field in the preset area for output, and the user can perform further analysis and processing as required on this basis. .

Referring to FIG. 2 , the electromagnetic field spatial distribution measurement system of this embodiment may further include a probe motion control module 6 , which is electrically connected to the reconstruction analysis module 5 for moving the Rydberg atom probe 1 . The user can set multiple moving points in the preset area, and lay the guide rails to move the Rydberg Atomic Probe 1 by motor driving. To reduce interference, the Rydberg Atom Probe 1 can also be moved manually.

The electromagnetic field spatial distribution measurement system of this embodiment further includes a front-end interaction module 8 for receiving user instructions, and also for displaying the electromagnetic field spatial distribution in a preset area to the user.

Please refer to FIG. 3, the front-end interaction module 8 is respectively connected with the probe measurement control module 2, the positioning measurement control module 4, the reconstruction analysis module 5 and the probe motion control module 6, and transmits the received user instructions to the probe measurement control module 2, The positioning measurement control module 4 and the probe motion control module 6 can determine the probe measurement mode, the positioning system working mode, the probe movement mode or the pulse output mode; the front-end interaction module 8 is also used to receive the transmission data of the reconstruction analysis module 5, and to the user Shows the spatial distribution of electromagnetic fields in a preset area.

The electromagnetic field spatial distribution measurement system in this embodiment further includes a data storage module 7 .

Referring to FIG. 2 , the data storage module 7 is electrically connected to the probe measurement control module 2 and the positioning measurement control module 4 for storing electromagnetic field parameters and spatial coordinates, and providing the electromagnetic field parameters and spatial coordinates to the reconstruction analysis module 5 .

Please refer to FIG. 4 and FIG. 6 , the electromagnetic field spatial distribution measurement system of this embodiment corresponds to a method for measuring electromagnetic field spatial distribution, including:

Step 401: Obtain the position parameters of each position, and obtain the spatial coordinates corresponding to the position parameters according to the position parameters;

Specifically, the pulsed laser is periodically emitted to the position where the Rydberg atom probe is located; wherein, the emission position of the pulsed laser is within a preset area and is fixed;

Obtain the reflected pulse spot position, and calculate the deviation distance between the reflected pulse spot position and the preset calibration point;

Adjust and adjust the emission angle of the pulsed laser according to the deviation distance, until the emission optical path of the pulsed laser is parallel to the reflected optical path;

Calculate the time difference from transmitting the pulsed laser to receiving the reflected pulsed spot, obtain the distance between the emission position of the pulsed laser and the Rydberg atom probe according to the time difference and the speed of light, and obtain the Rydberg atomic probe according to the distance and the emission angle of the pulsed laser The spatial coordinates of the location.

Step 402: Receive an optical signal obtained by converting the electromagnetic field signal to be measured by the Rydberg atom probe at each position based on the quantum effect, and analyze the optical signal to restore it to corresponding electromagnetic field parameters.

Step 403: Combine the electromagnetic field parameters corresponding to each position with the spatial coordinates to construct the electromagnetic field spatial distribution of the preset area for output.

The first embodiment ensures extremely low interference of the positioning system to the measured electromagnetic waves through the following aspects:

(1) In addition to the measured electromagnetic field, the only electromagnetic wave that needs to exist is only the visible light band laser with high directional, monochromatic and frequency outside the detection frequency, which avoids the problems of large diffusion angle and complex spectral composition of ordinary electromagnetic wave beams. And can be measured under dark room conditions without light;

(2) The dielectric film mirror used is made of non-metallic materials, which only reflect the electromagnetic frequency of the laser frequency through the interference effect, but is almost completely transparent to the measured electromagnetic field. Avoid potential interference caused by indiscriminate reflection of electromagnetic waves by traditional metal mirrors;

(3) Except for the start-up stage, during the whole process of the movement of the Rydberg atom probe, the feedback tracking system can ensure that the laser is always locked at the spherical center of the mirror and will not be irradiated in other directions, further avoiding the potential for measurement interference.

It can be seen that in this embodiment, the Rydberg atom probe is moved in the preset area, and the electromagnetic field parameters and spatial coordinates of each position are detected, and the electromagnetic field parameters and the spatial coordinates are combined to obtain the electromagnetic field spatial distribution of the preset area for the user to view. . The invention adopts the spherical dielectric film laser positioning scheme to collect the position of the Rydberg atom probe, which avoids the interference to the measured electromagnetic field to the greatest extent, so that the high-precision measurement of the measured electromagnetic field can be realized, and the spatial distribution of the electromagnetic field can be conveniently realized. Perform high-precision measurement and construction.

The second embodiment of the present invention provides an electromagnetic field spatial distribution measurement system. The second embodiment is improved on the basis of the first embodiment. The main improvement lies in the use of different spatial positioning devices to obtain Rydberg Position of the atom probe: The spatial positioning device 3 in the first embodiment is replaced by a plurality of cameras.

The cameras are arranged at different positions in the preset area, and the positions of the cameras are fixed.

The camera is used to shoot the Rydberg atom probe 1 at a certain position at the same time, and transmit the captured image to the positioning measurement control module 4. Correspondingly, the purpose of the positioning measurement control module 4 in this embodiment is corresponding The change of , is used to analyze and calculate the captured image, and calculate the spatial coordinates of the position of the Rydberg atomic probe 1 by using the parallax generated when the Rydberg atomic probe 1 is captured by cameras at different positions.

Correspondingly, the data storage module 7 in this embodiment is also used to store captured images.

Referring to FIG. 7 , the electromagnetic field spatial distribution measurement system of this embodiment corresponds to a method for measuring electromagnetic field spatial distribution, including:

Step 501: Receive the optical signal obtained by converting the electromagnetic field signal to be measured by the Rydberg atom probe at each position based on the quantum effect, and analyze the optical signal to restore it to corresponding electromagnetic field parameters; wherein, the electromagnetic field parameters include the intensity and direction of the electromagnetic field and frequency, etc. Step 502: Receive the captured images of the Rydberg atom probe at each position, analyze and process the captured images, and obtain the spatial coordinates of the position of the Rydberg atom probe;

Step 503: Combine the electromagnetic field parameters corresponding to each position with the spatial coordinates to obtain the electromagnetic field spatial distribution of the preset area for output.

It can be seen that in this embodiment, the Rydberg atom probe is moved in the preset area, and the electromagnetic field parameters and spatial coordinates of each position are detected in real time, and the electromagnetic field parameters and the spatial coordinates are combined to obtain the electromagnetic field spatial distribution of the preset area for users. Check. The invention adopts the camera to collect the position of the Rydberg atom probe, which avoids the interference of the measured electromagnetic field to the greatest extent, so that the high-precision measurement of the measured electromagnetic field can be realized, and the high-precision measurement and construction of the spatial distribution of the electromagnetic field can be conveniently realized. .

The third embodiment of the present invention provides an electromagnetic field spatial distribution measurement system. The third embodiment is improved on the basis of the first embodiment, and the main improvement lies in that different spatial positioning devices are used to obtain Rydberg Position of the atomic probe: The space positioning device 3 in the first embodiment is replaced by a satellite positioning device, and applicable satellite positioning devices include GPS, Beidou, Galileo or GLONASS. This embodiment can meet the positioning requirements in a large outdoor space.

The relative position of the satellite positioning device and the Rydberg atomic probe 1 is fixed, and during the measurement process, the Rydberg atomic probe 1 and the satellite positioning device move together, and the satellite positioning device sends the position coordinates to the positioning measurement control module 4. Know the satellite The position of the Rydberg atom probe 1 can be obtained by locating the position of the device.

It should be noted that, in order to avoid the interference to the measurement of the device itself or the process of receiving the satellite positioning signal, the electromagnetic field spatial distribution measurement system needs to support the location measurement in the case of only the Rydberg atom probe. The electromagnetic field is measured, and the satellite positioning signal device is in a silent state during this process, so as to avoid the influence of the electromagnetic field to be measured to the greatest extent.

In addition, in order to avoid the interference of the satellite positioning signal to the measurement, if the presence or absence of the electromagnetic field to be measured can be controlled, in the absence of the electromagnetic field to be measured and the electromagnetic field to be measured The electromagnetic field is measured, and the electromagnetic field measured by the former is deducted from the latter to obtain an undisturbed electromagnetic field to be measured; the data processing can be completed by the reconstruction analysis module 5 .

The electromagnetic field spatial distribution measurement system of this embodiment corresponds to a method for measuring the electromagnetic field spatial distribution, including:

Step 601: Receive the optical signal obtained by converting the electromagnetic field signal to be measured by the Rydberg atom probe at each position based on the quantum effect, and analyze the optical signal to restore it to the corresponding electromagnetic field parameters; wherein, the electromagnetic field parameters include the intensity and direction of the electromagnetic field and frequency, etc.

Step 602: Receive the position coordinates of the satellite positioning device, thereby obtaining the spatial coordinates of the location of the Rydberg atom probe;

Step 603: Combine the electromagnetic field parameters corresponding to each position with the spatial coordinates to obtain the electromagnetic field spatial distribution of the preset area for output.

It can be seen that in this embodiment, the Rydberg atom probe is moved in the preset area, and the electromagnetic field parameters and spatial coordinates of each position are detected in real time, and the electromagnetic field parameters and the spatial coordinates are combined to obtain the electromagnetic field spatial distribution of the preset area for users. Check. The invention adopts the satellite positioning device to collect the position of the Rydberg atom probe, which avoids the interference of the measured electric field and electromagnetic field to the greatest extent, so that the high-precision measurement of the measured electric field and electromagnetic field can be realized, and the high-precision spatial distribution of the electromagnetic field can be conveniently realized. measurement and construction.

It should be noted that the probe measurement control module, the positioning measurement control module and the reconstruction analysis module appearing in the above embodiments are all equipped with corresponding processors, and each processor is usually the central processing unit of the entire microcomputer digital display sensor processor system. A processor (Central Processing Unit, CPU) can be configured with a corresponding operating system, as well as a control interface, etc. The digital logic processor used for automatic control can load the control instructions into the memory for storage and execution at any time. At the same time, it can have built-in CPU instructions and data memory, input and output units, power modules, digital simulation and other units. The usage is set, and this scheme does not limit this.

To sum up, a method and system for measuring the spatial distribution of an electromagnetic field of the present invention moves the Rydberg atom probe in a preset area, detects the electromagnetic field parameters and spatial coordinates of each position, and combines the electromagnetic field parameters with the spatial coordinates to obtain the electromagnetic field spatial distribution of the preset area for users to view. The technical scheme of the present invention can simultaneously meet the measurement requirements of a small indoor space and a wide outdoor space; it can simultaneously meet the requirements of real-time continuous measurement and positioning and interval sampling measurement and positioning, and can be selected according to specific measurement requirements; the present invention avoids to the greatest extent The interference of the electromagnetic field spatial measurement system to the measured electromagnetic field is eliminated, so that the high-precision measurement of the measured electromagnetic field can be realized, and the high-precision measurement and construction of the electromagnetic field spatial distribution can be easily realized. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims (10)

1. An electromagnetic field spatial distribution measuring method is suitable for a rydberg atom probe, and the rydberg atom probe can move in a preset area, and comprises the following steps:

acquiring position parameters of each position, and acquiring a space coordinate corresponding to the position parameters according to the position parameters;

receiving optical signals obtained by converting electromagnetic field signals to be detected at each position of the rydberg atom probe based on quantum effect, analyzing the optical signals and reducing the optical signals into corresponding electromagnetic field parameters;

and combining the space coordinates with the electromagnetic field parameters corresponding to the positions to construct the electromagnetic field space distribution of the preset area for output.

2. The method of claim 1, wherein the obtaining the position parameters of each position and obtaining the spatial coordinates of the position according to the position parameters comprises:

periodically emitting pulse laser to the position of the rydberg atom probe; wherein the emission position of the pulse laser is in a preset area and is known;

acquiring a reflected pulse light spot position, and calculating the deviation distance between the reflected pulse light spot position and a preset calibration point;

adjusting the emission angle of the pulse laser according to the deviation distance until the emission light path of the pulse laser is parallel to the reflection light path;

calculating the time difference from the emission of the pulse laser to the reception of the reflected pulse light spot, obtaining the distance between the emission position of the pulse laser and the rydberg atom probe according to the time difference and the light speed, and obtaining the space coordinate of the position of the rydberg atom probe according to the distance and the emission angle of the pulse laser.

3. An electromagnetic field spatial distribution measuring system, which is applied to a rydberg atom probe, and the rydberg atom probe is movable within a preset region, comprising:

the space positioning device is used for acquiring position parameters of all positions;

the positioning measurement control module is used for acquiring a space coordinate corresponding to the position parameter according to the position parameter;

the probe measurement control module is used for receiving optical signals obtained by converting electromagnetic field signals to be measured at each position of the rydberg atom probe based on quantum effect, analyzing the optical signals and reducing the optical signals into corresponding electromagnetic field parameters;

and the reconstruction analysis module is used for combining the electromagnetic field parameters corresponding to the positions with the space coordinates to construct electromagnetic field space distribution of a preset area for output.

4. An electromagnetic field spatial distribution measuring system as defined in claim 3 wherein said spatial locating means comprises:

the pulse laser transmitter is used for transmitting pulse laser to the spherical dielectric film reflecting mirror according to the control signal of the positioning measurement control module; wherein the position of the pulsed laser emitter is within a predetermined area and is known;

the spherical dielectric film reflecting mirror is fixedly connected with the rydberg atom probe and is used for reflecting the injected pulse laser;

the laser induction plate is used for receiving the pulse light spots reflected by the spherical dielectric film reflector and transmitting the position information of the reflected pulse light spots to the positioning measurement control module;

the laser angle adjuster is used for adjusting the laser emission angle of the pulse laser emitter according to the control signal of the positioning measurement control module;

the positioning measurement control module is also used for outputting a control signal to the pulse laser transmitter; the laser angle adjuster is also used for calculating the deviation distance between the position of the reflected pulse light spot and a preset calibration point according to the position information of the reflected pulse light spot, outputting a control signal to the laser angle adjuster according to the deviation distance, and adjusting the emission angle of the pulse laser until the emission light path of the pulse laser is parallel to the reflection light path; the preset calibration point is positioned on the laser induction plate;

the laser positioning device is also used for calculating the time difference from the pulse laser emission to the reflected pulse light spot reception, obtaining the distance between the emission position of the pulse laser and the rydberg atom probe according to the time difference and the light speed, and obtaining the space coordinate of the position of the rydberg atom probe according to the distance and the emission angle of the pulse laser.

5. An electromagnetic field spatial distribution measuring system as defined in claim 3, wherein: the device also comprises a probe motion control module, wherein the probe motion control module is electrically connected with the rydberg atom probe and used for moving the rydberg atom probe.

6. The electromagnetic field spatial distribution measuring system of claim 5, wherein: the system also comprises a front-end interaction module which is used for receiving a user instruction and distributing the user instruction to the probe motion control module, the probe measurement control module and the positioning measurement control module;

and the system is also used for receiving the data transmitted by the reconstruction analysis module and displaying the electromagnetic field spatial distribution of the preset area to a user.

7. An electromagnetic field spatial distribution measuring system as defined in claim 3, wherein: the data storage module is used for storing the electromagnetic field parameters and the space coordinates and providing the electromagnetic field parameters and the space coordinates to the reconstruction analysis module.

8. An electromagnetic field spatial distribution measuring method is suitable for a rydberg atom probe, and the rydberg atom probe can move in a preset area, and comprises the following steps:

receiving optical signals obtained by converting electromagnetic field signals to be detected at each position of the rydberg atom probe based on quantum effect, analyzing the optical signals and reducing the optical signals into corresponding electromagnetic field parameters;

receiving shot images of the rydberg atom probe at various positions, analyzing the shot images, and obtaining a space coordinate of the position of the rydberg atom probe;

and combining the electromagnetic field parameters corresponding to the positions with the space coordinates to obtain the spatial distribution of the electromagnetic field in the preset area for output.

9. An electromagnetic field spatial distribution measuring system, which is applied to a rydberg atom probe, and the rydberg atom probe is movable within a preset region, comprising:

the probe measurement control module is used for receiving optical signals obtained by converting electromagnetic field signals to be measured at each position of the rydberg atom probe based on quantum effect, analyzing the optical signals and reducing the optical signals into corresponding electromagnetic field parameters;

the system comprises a plurality of cameras, a plurality of image acquisition devices and a plurality of image processing devices, wherein the cameras are arranged at different positions of a preset area, and the positions of the cameras are known;

each camera is used for shooting the rydberg atom probe at a certain position at the same time and transmitting the shot image to a positioning measurement control module;

the positioning measurement control module is used for analyzing and calculating the shot image to obtain a space coordinate of the position of the rydberg atom probe;

and the reconstruction analysis module is used for combining the electromagnetic field parameters corresponding to the positions with the space coordinates to construct electromagnetic field space distribution of a preset area for output.

10. An electromagnetic field spatial distribution measuring system as defined in claim 9, further comprising a data storage module for storing said electromagnetic field parameters, said captured image and said spatial coordinates and providing said electromagnetic field parameters and said spatial coordinates to said reconstruction analyzing module.

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