CN201130046Y - Wave collecting instrument - Google Patents
Wave collecting instrument Download PDFInfo
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- CN201130046Y CN201130046Y CNU2007201315733U CN200720131573U CN201130046Y CN 201130046 Y CN201130046 Y CN 201130046Y CN U2007201315733 U CNU2007201315733 U CN U2007201315733U CN 200720131573 U CN200720131573 U CN 200720131573U CN 201130046 Y CN201130046 Y CN 201130046Y
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- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- 239000010703 silicon Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920002545 silicone oil Polymers 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 150000003376 silicon Chemical class 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000035945 sensitivity Effects 0.000 claims description 5
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
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- 230000008054 signal transmission Effects 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
A wave acquisiting instrument is composed of a frequency signal output liquid level transducer, a microprocessor, a clock circuit, a serial communication interface and an upper computer, wherein the frequency signal output liquid level transducer is composed of a pressure sensor used for detecting wave liquid levels, a signal compensating and amplifying circuit used for regulating the output signals of pressure sensors, and a voltage frequency converting circuit used for converting the output signals of the signal compensating and amplifying circuit, wherein the pressure sensor is a silicon-pressure drag sensitive element which is composed of silicon sensitive components with Wheatstone bridge structure, a partition membrane which is sealed and parted with the external environment is arranged on the pressured surface of the sensitive element, a vacuum cavity chamber is formed between the partition membrane and the pressured surface of the sensitive element, silicone oil which is taken as pressure transmitting medium is filled in the vacuum cavity chamber, the upper computer reads collected data in a FLASH memory through the serial communication interface, simultaneously, the upper computer changes collected working parameters in an EEPROM through the serial communication interface, the wave acquisiting instrument can automatically collect wave liquid levels, can realize the continuous collecting of wave liquid levels, and can satisfy the requirements of the dynamic measure of water levels.
Description
Technical field
The utility model relates to a kind of wave Acquisition Instrument, is applied to the wave measurement of rivers,lakes and seas, is specially adapted to the long-term observation that ocean wave changes, and the dynamic water table of the various hydrology is observed also have much value.
Background technology
The wave Acquisition Instrument is a kind of novel liquid level meter that hydrology water conservancy measuring technique, sensor technology, electronic technology and computer technology combine.Traditional liquid level gauge great majority are first image data, use the way of manual record then.This liquid level gauge image data is little, can only be used for static observation, can't accomplish dynamic change observation, and need manual record, inconvenient operation.
Summary of the invention
In order to remedy the some shortcomings that existing liquid level gauge exists, the utility model provides a kind of wave Acquisition Instrument, can gather the wave liquid level automatically, but and as required real-time continuous gather the wave liquid level, satisfied the requirement of water level kinetic measurement.
The technical solution of the utility model is achieved in that a kind of wave Acquisition Instrument, by frequency signal output fluid level transmitter, microprocessor, clock circuit, host computer and the serial communication interface composition that connects this microprocessor and host computer, this frequency signal output fluid level transmitter is by the pressure transducer that detects the wave liquid level, the signal compensation amplifying circuit that the output voltage signal of this pressure transducer is nursed one's health and the voltage frequency conversioning circuit that the output voltage signal of this signal compensation amplifying circuit converts frequency signal to constituted, this microprocessor is according to the clock frequency of this clock circuit and the collecting work parameter of setting, input signal to this voltage frequency conversioning circuit is handled the image data that the back generates, and is input to this host computer behind this serial communication interface.
As further improvement of the utility model, this pressure transducer silicon piezoresistance sensitivity assembly that silicon-sensitive element with wheatstone bridge configuration is formed of serving as reasons, this silicon-sensitive element compression face is provided with the barrier film with extraneous seal isolation, also form vacuum chamber between this barrier film and this silicon-sensitive element compression face, and be filled with silicone oil in this vacuum chamber as the pressure conductive medium.
As further improvement of the utility model, this wave Acquisition Instrument also comprises the EEPROM that is used to store this collecting work parameter, and the FLASH storer that is used to store this image data.
As further improvement of the utility model, this host computer reads image data in this FLASH storer by this serial communication interface, changes collecting work parameter among this EEPROM by this serial communication interface simultaneously.
As further improvement of the utility model, be provided with signal transformation circuit between this voltage frequency conversioning circuit and this microprocessor.
As further improvement of the utility model, be connected to the data working storage that is used for the temporary storage of image data on this microprocessor, also be provided with corresponding address latch between this microprocessor and the data working storage.
As further improvement of the utility model, the external time-delay reset circuit of this clock circuit.
Useful technique effect of the present utility model is: described frequency signal output fluid level transmitter realizes gathering the wave liquid level, this frequency signal output fluid level transmitter detects wave hydraulic pressure by the pressure transducer that detects the wave liquid level, and, be converted to frequency signal through behind signal compensation amplifying circuit and the voltage frequency conversioning circuit; This microprocessor detects the frequency signal of wave by clock circuit, for the variation (being the wave liquid level change) that detects this frequency signal, this microprocessor is according to EEPROM (Electrically Erasable, Programmable, read-only, Chinese is Electrically Erasable Read Only Memory) the middle collecting work parameter (frequency acquisition of setting, the continuous acquisition time, the acquisition interval time), frequency acquisition signal in real time, and with the data storage of gathering to this FLASH storer (also claiming flash memory), this host computer reads image data in this FLASH storer by this serial communication interface on the one hand, simultaneously change collecting work parameter among this EEPROM by this serial communication interface again, realize the real-time collection of wave liquid level thus, this host computer can be drawn the wave change curve according to image data and collecting work parameter.
This wave Acquisition Instrument has unattended duty to be gathered automatically, and the image data amount is big, and stream time is long, high precision, advantages such as high reliability.
Description of drawings
Fig. 1 is a control flow synoptic diagram of the present utility model;
Fig. 2 gathers curve map for the wave that utilization the utility model is made.
Contrast Fig. 1 explains:
1---pressure transducer 10---data working storage
2---signal compensation amplifying circuit 11---serial communication interface
3---voltage frequency conversioning circuit 12---clock circuit
4---signal transformation circuit 13---EEPROM
6---microprocessor 14---FLASH storer
9---address latch 15---host computer
Embodiment
This wave Acquisition Instrument comprises frequency signal output fluid level transmitter and data acquisition-and-recording device two parts, as shown in Figure 1.A kind of wave Acquisition Instrument, by frequency signal output fluid level transmitter, microprocessor 6, clock circuit 12, host computer 15 and serial communication interface 11 compositions that connect this microprocessor and host computer, this frequency signal output fluid level transmitter is by the pressure transducer 1 that detects the wave liquid level, the signal compensation amplifying circuit 2 that the output voltage signal of this pressure transducer is nursed one's health and the voltage frequency conversioning circuit 3 that the output voltage signal of this signal compensation amplifying circuit converts frequency signal to constituted, this microprocessor is according to the clock frequency of this clock circuit and the collecting work parameter of setting, input signal to this voltage frequency conversioning circuit is handled the image data that the back generates, and is input to this host computer behind this serial communication interface.This pressure transducer 1 silicon piezoresistance sensitivity assembly that silicon-sensitive element with wheatstone bridge configuration is formed of serving as reasons, this silicon-sensitive element compression face is provided with the barrier film with extraneous seal isolation, also form vacuum chamber between this barrier film and this silicon-sensitive element compression face, and be filled with silicone oil in this vacuum chamber as the pressure conductive medium.For fear of the silicon-sensitive chip with measure four resistive short causing Hui Sitong detection electric bridge after aqueous medium contact and silicon-sensitive chip and sensor housing and produce on-insulated problem, this pressure transducer adopts isolates the membrane type pressure transducer, avoided sensor silicon-sensitive chip directly to contact, realized the conduction of pressure by the silicone oil of in barrier film, filling with water.This pressure transducer output signal is a voltage signal, exports in the frequency signal mode after over-compensation, amplification and conversion.Characteristic anti-interference, long transmission distance that frequency signal has in transmission course.
This silicon piezoresistance sensitivity assembly adopts Chinese patent " a kind of Dimesize dynamic piezoresistance, pressure sensor and manufacture method thereof " (patent No. ZL2003101063298) public technology scheme to make, this silicon piezoresistance sensitivity assembly is the silicon-sensitive element with wheatstone bridge configuration, adopts the manufacturing of MEMS (Micro Electro Mechanical System) silicon body micro-machining.Pressure transducer described in the utility model has just increased the barrier film of a buffer action at described silicon-sensitive element compression face front end, form vacuum chamber between this barrier film and this silicon-sensitive element compression face, by in this vacuum chamber, being filled with the pressure transmission that has realized wave as the silicone oil of conductive medium, the pressure and the liquid level that detect wave have been reached.
Respond to the hydraulic pressure of wave by this pressure transducer 1, and pressure signal is converted into the mV voltage signal, this mV voltage signal is converted into frequency signal after signal compensation amplifying circuit 2, electric voltage frequency conversion circuit 3, and by cable to microprocessor 6, owing to be long Distance Transmission, might exist signal to disturb and decay, so design signal transformation circuit 4 between this voltage frequency conversioning circuit 3 and this microprocessor 6 and realized the undistorted transmission of signal.This frequency signal is by the internal counter reading frequency value of this microprocessor 6, (wherein P is a pressure according to P=ρ gh at last, ρ is a fluid density, g is an acceleration of gravity, h is the liquid level degree of depth) converse corresponding hydraulic pressure and wave height, this clock circuit 12 has been realized the automatic acquisition function of unattended duty, and clock circuit 12 peripheries are connected to time-delay reset circuit, have guaranteed the Acquisition Instrument functional reliability.
Be connected to data working storage 10 on this microprocessor 6, be used for the temporary storage of image data, between microprocessor 6 and data working storage 10, also be provided with address latch 9.
Frequency acquisition is controlled by the timer internal of microprocessor, the 12 decision continuous acquisition times of clock circuit, the acquisition interval time, realizes the automatic acquisition function of unattended duty.The data storage of gathering is in high-capacity FLASH storer 14, serial communication interface 11 has been realized the be connected communication of microprocessor 6 with host computer 15, host computer 15 reads the image data of preserving in this FLASH storer 14 by serial communication interface 11, and draw out wave change curve (as shown in Figure 2), can also set frequency acquisition by this host computer, the continuous acquisition time, running parameter such as acquisition interval time also stores in the inner nonvolatile memory EEPROM 13.
There is the non-volatile FLASH storer of high capacity inside, has realized the mass memory of image data.The preservation of all data is the unit file that creates text with the sky.In each text, the data of each time period collection all have the statistics of a stage, and this statistics comprises acquisition time, acquisition interval, frequency acquisition, maximal value, minimum value, mean value etc.
Find out that thus this wave Acquisition Instrument adopts intelligentized design, measuring accuracy height; Unmanned, but self-timing collection; The image data amount is big, and stream time is long; The transmission of digital remote signal, antijamming capability is strong, and working stability is reliable; Open user's operation, the user can be provided with the instrumentation parameter, and is convenient, flexible; Has certain data analysis statistical function; Sensor that can adaptive different ranges, it is convenient to install with configuration.
Fig. 2 gathers curve map for wave, and the hypothesis frequency acquisition is 10HZ among the figure, and the continuous acquisition time is 10 minutes, and the acquisition interval time is 30 minutes, and the range of sensor is in 100KPa (promptly wave is high 10 meters).
Claims (7)
1, a kind of wave Acquisition Instrument, it is characterized in that, by frequency signal output fluid level transmitter, microprocessor (6), clock circuit (12), host computer (15) and serial communication interface (11) composition that connects this microprocessor and host computer, this frequency signal output fluid level transmitter is by the pressure transducer (1) that detects the wave liquid level, the signal compensation amplifying circuit (2) that the output voltage signal of this pressure transducer is nursed one's health and the voltage frequency conversioning circuit (3) that the output voltage signal of this signal compensation amplifying circuit converts frequency signal to constituted, this microprocessor is according to the clock frequency of this clock circuit and the collecting work parameter of setting, input signal to this voltage frequency conversioning circuit is handled the image data that the back generates, and is input to this host computer behind this serial communication interface.
2, wave Acquisition Instrument as claimed in claim 1, it is characterized in that, this pressure transducer silicon piezoresistance sensitivity assembly that silicon-sensitive element with wheatstone bridge configuration is formed of serving as reasons, this silicon-sensitive element compression face is provided with the barrier film with extraneous seal isolation, also form vacuum chamber between this barrier film and this silicon-sensitive element compression face, and be filled with silicone oil in this vacuum chamber as the pressure conductive medium.
3, wave Acquisition Instrument as claimed in claim 1 or 2 is characterized in that, this wave Acquisition Instrument also comprises the EEPROM (13) that is used to store this collecting work parameter, and the FLASH storer (14) that is used to store this image data.
4, wave Acquisition Instrument as claimed in claim 3 is characterized in that, this host computer reads image data in this FLASH storer by this serial communication interface, changes collecting work parameter among this EEPROM by this serial communication interface simultaneously.
5, wave Acquisition Instrument as claimed in claim 1 or 2 is characterized in that, is provided with signal transformation circuit (4) between this voltage frequency conversioning circuit and this microprocessor.
6, wave Acquisition Instrument as claimed in claim 1 or 2 is characterized in that, is connected to the data working storage (10) that is used for the temporary storage of image data on this microprocessor, also is provided with corresponding address latch (9) between this microprocessor and the data working storage.
7, wave Acquisition Instrument as claimed in claim 1 or 2 is characterized in that, the external time-delay reset circuit of this clock circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201315733U CN201130046Y (en) | 2007-12-18 | 2007-12-18 | Wave collecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201315733U CN201130046Y (en) | 2007-12-18 | 2007-12-18 | Wave collecting instrument |
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| Publication Number | Publication Date |
|---|---|
| CN201130046Y true CN201130046Y (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201315733U Expired - Fee Related CN201130046Y (en) | 2007-12-18 | 2007-12-18 | Wave collecting instrument |
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| Country | Link |
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| CN (1) | CN201130046Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411362A (en) * | 2011-12-12 | 2012-04-11 | 中国人民解放军92859部队 | Dynamic Network Tide Gauge System |
| CN103822749A (en) * | 2009-07-24 | 2014-05-28 | 罗姆股份有限公司 | Pressure sensor apparatus and electronic equipment |
| CN103837170A (en) * | 2012-11-28 | 2014-06-04 | 常州大学 | Automatic frequency compensating circuit and method for frequency output type sensors |
| CN110189502A (en) * | 2019-07-02 | 2019-08-30 | 重庆交通大学 | Mountainous channel navigation mark and alarm method with landslide surge danger alarm function |
| CN115388978A (en) * | 2022-08-08 | 2022-11-25 | 中铁工程装备集团有限公司 | A mortar tank and shield machine with grouting data measurement function |
-
2007
- 2007-12-18 CN CNU2007201315733U patent/CN201130046Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822749A (en) * | 2009-07-24 | 2014-05-28 | 罗姆股份有限公司 | Pressure sensor apparatus and electronic equipment |
| CN103822749B (en) * | 2009-07-24 | 2016-05-04 | 罗姆股份有限公司 | Pressure sensor apparatus and electronic equipment |
| US9568385B2 (en) | 2009-07-24 | 2017-02-14 | Rohm Co., Ltd. | Semiconductor pressure sensor, pressure sensor apparatus, electronic equipment, and method of manufacturing semiconductor pressure sensor |
| CN102411362A (en) * | 2011-12-12 | 2012-04-11 | 中国人民解放军92859部队 | Dynamic Network Tide Gauge System |
| CN103837170A (en) * | 2012-11-28 | 2014-06-04 | 常州大学 | Automatic frequency compensating circuit and method for frequency output type sensors |
| CN103837170B (en) * | 2012-11-28 | 2016-08-10 | 常州大学 | Frequency output type sensor automatic frequency compensation circuit and method |
| CN110189502A (en) * | 2019-07-02 | 2019-08-30 | 重庆交通大学 | Mountainous channel navigation mark and alarm method with landslide surge danger alarm function |
| CN115388978A (en) * | 2022-08-08 | 2022-11-25 | 中铁工程装备集团有限公司 | A mortar tank and shield machine with grouting data measurement function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |