CN208398919U - Measuring device for humidity gradient in narrow space - Google Patents
Measuring device for humidity gradient in narrow space Download PDFInfo
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- CN208398919U CN208398919U CN201820417233.5U CN201820417233U CN208398919U CN 208398919 U CN208398919 U CN 208398919U CN 201820417233 U CN201820417233 U CN 201820417233U CN 208398919 U CN208398919 U CN 208398919U
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Abstract
The utility model relates to a measuring device for humidity gradient in narrow space, which comprises a sensing element, a temperature sensor and a humidity sensor, wherein the sensing element is arranged at a plurality of measuring points in the narrow space to be measured and is used for acquiring a temperature signal and a humidity signal of each measuring point; a wire harness connecting the sensing element and the signal processor; the signal processor acquires the temperature signals and the humidity signals of the plurality of measuring points through the wiring harness, and processes the temperature signals and the humidity signals to obtain processed data; and the upper computer is in communication connection with the signal processor to acquire the processed data from the signal processor, perform analytic calculation and generate the humidity gradient of the measured narrow space. The utility model discloses a small humiture measuring element of volume, integrated signal gathers and automatic correction system, carries out computational analysis with the humiture signal of gathering, can measure the absolute humidity gradient of narrow and small space measuring point, provides technical support for the research of circuit board corruption scheduling problem.
Description
Technical field
The utility model relates to absolute humidity field of measuring technique more particularly to a kind of measurements of small space moist gradient
Device.
Background technique
With the continuous development of new-energy automobile, using vehicle power supply as power, with the electronic vapour of motor driven wheels travel
The ownership of vehicle is continuously increased, corrosion verifying and mechanism study about electric car motorcar electric power assembly controller circuit board
Also become an important factor for influencing Development of Electric Vehicles.Usually corrosion positioning can be carried out by the measurement of moist gradient.Currently,
The measurement of moist gradient needs to acquire the temperature and relative humidity of space multiple spot, according to table look-up or formula calculate absolutely it is wet
Degree, the absolute humidity data for obtaining multiple positions can draw out the gradient of space absolute humidity.The acquisition of temperature data is simpler
It is single accurate, and the precise measurement of relative humidity is relatively difficult, traditional relative humidity measurement generally uses chemical method, such as dry
Wet bulb formula, measuring system volume are relatively large.With the development of electronic technology, Relative Humidity Measuring mostly uses wet sensitive first at present
Part, however, to ensure that precision, general volume is also relatively large.
But narrow space at electric power assembly controller circuit board, and the operating ambient temperature of entire controller, pressure
Power, humidity change greatly, and environment is complicated, thus existing absolute humidity measuring system due to volume it is relatively large, be not suitable for
The moisture measurement of electric car motorcar electric power assembly controller circuit board space or similar small space, once it is narrow at circuit board
There is corrosion phenomenon in small space, is difficult to carry out the positioning at corrosion, therefore, how to realize the absolute humidity ladder of measurement small space
Degree becomes technical problem urgently to be resolved.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of measuring device of small space moist gradient,
By the small temperature and humidity measurement element of volume, integrated signal acquisition and self-correcting system measure small space measurement point
Absolute humidity gradient, research the problems such as circuit board corrosion provides technical support, and the space of the small space is unidirectionally tieed up
Degree is less than 10mm.
In order to solve the above-mentioned technical problem, on the one hand according to the utility model, a kind of small space moist gradient is provided
Measuring device, comprising:
Induction element, set on multiple measurement points of tested small space, for obtain each measurement point temperature signal and
Moisture signal；
Harness connects the induction element and signal processor；
Signal processor, for acquiring the temperature signal and moisture signal of the multiple measurement point by the harness, and
It is handled, the data that obtain that treated；
Host computer is communicated to connect with the signal processor, to obtain treated data from it, and carries out parsing meter
It calculates, generates the moist gradient of the tested small space.
Further, the induction element includes temperature-sensitive element and dew cell, and the temperature-sensitive element is for perceiving measurement
Point temperature, and it is converted into temperature signal；The dew cell is converted into moisture signal for perceiving measurement point humidity.
Further, the temperature-sensitive element is temperature sensor, and the dew cell is humidity sensor.
Further, the signal processor includes signal conversion unit, signal processing unit and data communication interface,
In,
Signal conversion unit is connect with the signal processing unit, is used for the temperature signal and moisture signal by telecommunications
Number digital signal is converted to, and the digital signal is sent to signal processing unit；
Signal processing unit is connect with the data communication interface, for being demarcated and being packaged the digital signal,
Generate data packet；
The host computer obtains the data packet by the data communication interface；
Wherein, the signal processing unit includes that data scaling subelement and data are packaged subelement, the data scaling
Subelement is packaged subelement with data and is connected:
The data scaling subelement is by temperature correction function and humidity correcting function, to digital signal progress
Match and correct, obtains amendment data；
The data are packaged subelement using data are corrected described in IIC protocol packing, obtain IIC data packet.
Further, the host computer includes resolution unit, the first computing unit, the second computing unit and absolute humidity ladder
Spend drawing unit, wherein
The resolution unit is connected with first computing unit, for parsing from signal processor acquisition
Data after reason obtain the temperature value and humidity value of each measurement point；
First computing unit is connected with second computing unit, for by the temperature value of the measurement point and wet
Angle value substitutes into the relative humidity that opposite wet temp table function calculates each measurement point；
Second computing unit is connected with the absolute humidity gradient drawing unit, is used for each measurement point
Relative humidity, substitute into relative humidity and absolute humidity conversion table, obtain corresponding absolute humidity；
Absolute humidity gradient drawing unit, for multiple groups of the multiple measurement point in preset measuring time section are absolute
Humidity data is described relative to measurement point in the tested small space position, and the exhausted of the tested small space is generated
To moist gradient, wherein the multiple measurement point is in each measurement moment, corresponding one group of absolute humidity data, the default survey
Measuring the period includes multiple measurement moment.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, originally
A kind of measuring device of small space moist gradient of utility model can reach comparable technical progress and practicability, and has and produce
Extensive utility value in industry, at least has the advantage that
The utility model temperature and humidity measurement element small by volume, integrated signal acquisition and self-correcting system, will
The temperature-humidity signal of acquisition carries out calculating analysis, can measure the absolute humidity gradient of small space measurement point, and accuracy is high,
The research of can be for circuit board corrosion the problems such as provides technical support.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the measuring device schematic diagram for the small space moist gradient that an embodiment of the present invention provides；
Fig. 2 is the measurement method signal of the measuring device for the small space moist gradient that an embodiment of the present invention provides
Figure.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes a kind of small space moist gradient measuring device
Specific embodiment and its effect, detailed description is as follows.
A kind of measuring device of small space moist gradient, as shown in Figure 1, including induction element 1, harness 2, signal processing
Device 3 and host computer 4, wherein induction element 1 is set to multiple measurement points inside tested small space 5, for obtaining each measurement
The temperature signal and moisture signal of point, harness 2 connect induction element 1 and signal processor 3；Signal processor 3 is adopted by harness 2
Collect the temperature signal and moisture signal of the multiple measurement point, and is handled, the data that obtain that treated；Host computer 4 and letter
Number processor 3 communicates to connect, and for obtaining treated the data from signal processor 3, and carries out analytical Calculation, generates institute
The moist gradient of tested small space 5 is stated, for example, the absolute humidity gradient of small space 5 can be generated.
It should be noted that small space described in the utility model refers to that unidirectional dimension is less than the space of 10mm, but can
With understanding, the measuring device of small space moist gradient described in the utility model is suitable for unidirectional dimension less than 10mm's
Space, but it is more than or equal to the space of 10mm in unidirectional dimension, it is equally applicable.
Induction element 1 includes temperature-sensitive element and dew cell, and temperature-sensitive element is converted into temperature for perceiving measurement point temperature
Spend signal；Dew cell is converted into moisture signal for perceiving measurement point humidity, and the temperature signal and moisture signal can be with
For electric signal.As an example, temperature-sensitive element is temperature sensor, and dew cell is humidity sensor.The measuring device
When measuring, multiple measurement points are generally included, it is to be understood that the corresponding measuring device includes multiple induction elements
1, an induction element 1 is arranged in each measurement point, to perceive the temperature and humidity of the measurement point.As an example, induction element 1 can
Think that small temperature and humidity integrated chip, such as size can be made as 10mm*7mm*4mm.
As an example, it is assumed that tested small space 5 includes 10 measurement points, then sets 10 induction elements 1 respectively
It sets in each measurement point, to perceive the temperature and humidity of each measurement point, and is converted into electric signal.The position of measurement point is according to grinding
The spatial gradient requirement studied carefully determines, such as tested small space 5 belongs to inside larger magnetic field components, then needs to consider that shielding is set
Meter, for another example, being tested small space 5, there are height temperature-heat-sources, then need to consider that the heatproof of design perception and signal acquisition part is special
Property.
Since the space for being tested small space 5 is smaller, all signal wires can be integrated into harness 2, and disperse to fix
On the inner wall of the small space.Harness 2 includes the first connecting line for being used for transmission signal, for connecting positive pole
Two connecting lines and third connecting line for connecting power cathode.As an example, induction element 2 and signal processor 3 it
Between can be used 3m long harness 3 connect, to guarantee that inductive spacing is as small as possible.But it is understood that in actual use, harness
3 length can do the adjustment of adaptability according to specific measurement demand.
Signal processor 3 includes signal conversion unit, signal processing unit and data communication interface, wherein signal conversion
Unit is connect with the signal processing unit, for the temperature signal and moisture signal to be converted to digital letter by electric signal
Number, and digital signal is sent to signal processing unit, as an example, signal conversion unit can be AD sampling A/D chip.Signal
Processing unit is connect with the data communication interface, and the digital signal is demarcated and is packaged, and generates data packet.Host computer
4 obtain the data packet by the data communication interface, as an example, RS232 agreement or TCP/IP can be used in host computer 4
Agreement obtains the data packet by the data communication interface.
As an example, signal processing unit includes that data scaling subelement and data are packaged subelement, data scaling
Subelement is connected with subelement is packaged: where data scaling subelement is used to pass through temperature correction function and humidity correcting letter
Number, is matched and is corrected to the digital signal, and amendment data are obtained.Data are packaged subelement and are used to be beaten using IIC agreement
The amendment data are wrapped, IIC data packet is obtained.Single-chip microcontroller can be used to realize in signal processing list device 3.
Host computer 4 includes resolution unit, the first computing unit, the second computing unit and absolute humidity gradient drawing unit,
Wherein, resolution unit is connected with the first computing unit, connect for parse from the signal processor 3 obtain treated number
According to obtaining the temperature value and humidity value of each measurement point.First computing unit is connected with the second computing unit, and being used for will
The temperature value and humidity value of the measurement point substitute into the relative humidity that opposite wet temp table function calculates each measurement point.
Second computing unit is connected with absolute humidity gradient drawing unit, for substituting into the relative humidity of each measurement point
Relative humidity and absolute humidity conversion table, obtain corresponding absolute humidity.It should be noted that in warm and humid topology degree, it is corresponding
Normal atmosphere pressure, existing existing opposite wet temp table function and relative humidity and absolute humidity conversion table, host computer 4
Directly data can be substituted into and carry out operation.
Absolute humidity gradient drawing unit is used for multiple groups of the multiple measurement point in preset measuring time section are absolute
Humidity data is described relative to measurement point in tested 5 position of small space, and the tested small space 5 is generated
Absolute humidity gradient, wherein for the multiple measurement point at each measurement moment, corresponding one group of absolute humidity data are described default
Measuring section includes multiple measurement moment.As an example, due to measuring 10 measurement points simultaneously in tested small space 5, it is false
If preset measuring time section is 8 days, 10 measurement points of each moment will correspond to one group of acquisition data, also correspond to one group of absolute humidity
Data will form multiple groups to humidity data, according to the relative tertiary location of 10 measurement points to more by 8 days accumulated times
Group describes humidity data, that is, produces the absolute humidity gradient of tested small space 5, which can substantially position
The source at water source can analyze the original of circuit board corrosion generation in addition the cumulative data of long-time multi-state obtains variable gradient
Cause.
The device described in the utility model temperature and humidity measurement element small by volume, integrated signal acquisition and automatic amendment
The temperature-humidity signal of acquisition is carried out calculating analysis by system, can measure the absolute humidity gradient of small space measurement point, quasi-
The research for the problems such as exactness is high, can be for circuit board corrosion provides technical support.
Based on the measuring device of above-mentioned small space moist gradient, the utility model embodiment also provides a kind of small space
The measurement method of moist gradient, as shown in Figure 2, it should be noted that small space described in the utility model refers to unidirectionally tieing up
Degree is less than the space of 10mm, but it is understood that, the measuring device of small space moist gradient described in the utility model is suitable
It is less than the space of 10mm for unidirectional dimension, but is more than or equal to the space of 10mm in unidirectional dimension, is equally applicable.
Specifically, it the described method comprises the following steps:
Step S1, the temperature signal and moisture signal of multiple measurement points of tested small space are obtained；
As an example, can be by induction element 1 come the temperature signal and moisture signal of measurement point, induction element in step S1
1 may include temperature-sensitive element and dew cell, and temperature-sensitive element is converted into temperature signal for perceiving measurement point temperature；Wet sensitive member
Part is converted into moisture signal for perceiving measurement point humidity, and the temperature signal and moisture signal can be electric signal.As
A kind of example, temperature-sensitive element are temperature sensor, and dew cell is humidity sensor.When measuring, generally include multiple
Measurement point, it is to be understood that corresponding includes multiple induction elements 1, and an induction element 1 is arranged in each measurement point, to perceive
The temperature and humidity of the measurement point.As an example, induction element 1 can be small temperature and humidity integrated chip, such as ruler
It is very little to be made as 10mm*7mm*4mm.
As an example, it is assumed that tested small space includes 10 measurement points, then 10 induction elements 1 is respectively set
In each measurement point, to perceive the temperature and humidity of each measurement point, and it is converted into electric signal.The position of measurement point is according to research
Spatial gradient require to determine, such as tested small space belongs to inside larger magnetic field components, then needs to consider shielding design, again
Such as, there are height temperature-heat-sources for tested small space, then need to consider the temperature-resistance characteristic of design perception and signal acquisition part.
Step S2, the temperature signal and moisture signal of the multiple measurement point are handled, the data that obtain that treated；
As an example, step S2 the following steps are included:
Step S21, the temperature signal and moisture signal are converted into digital signal by electric signal；
As an example, AD sampling A/D chip can be used and turn the temperature signal and moisture signal by electric signal in step S21
It is changed to digital signal.
Step S22, the digital signal is demarcated and is packaged, generate data packet.
The S22 is further included steps of
Step S221, by temperature correction function and humidity correcting function, the digital signal is matched and is corrected,
Obtain amendment data；
Step S222, data are corrected using described in IIC protocol packing, obtains IIC data packet.
Step S3, analytical Calculation is carried out to treated the data, generates the moist gradient of the tested small space.
As an example, step S3 produces the absolute humidity gradient of the tested small space, comprising the following steps:
Step S31, parsing obtains treated data from the signal processor 3, obtains each measurement point
Temperature value and humidity value；
Step S32, by the temperature value and humidity value of the measurement point, the opposite wet temp table function of substitution calculates each
The relative humidity of measurement point；
Step S33, by the relative humidity of each measurement point, relative humidity and absolute humidity conversion table is substituted into, is obtained
Corresponding absolute humidity；
It should be noted that in warm and humid topology degree, corresponding normal atmosphere pressure, the opposite wet temp table of existing thread
Data can be substituted into directly and carry out operation by lattice function and relative humidity and absolute humidity conversion table.
Step S34, the multiple groups absolute humidity data by the multiple measurement point in preset measuring time section, relative to survey
Amount point is described in the tested small space position, generates the absolute humidity gradient of the tested small space, wherein institute
Multiple measurement points are stated at each measurement moment, corresponding one group of absolute humidity data, the preset measuring time section includes multiple surveys
Measure the moment.As an example, due to measuring 10 measurement points simultaneously in tested small space, it is assumed that preset measuring time section is 8 days,
10 measurement points of each moment will correspond to one group of acquisition data, also correspond to one group of absolute humidity data, tired by 8 days times
Product, will form multiple groups to humidity data, describes to multiple groups to humidity data according to the relative tertiary location of 10 measurement points,
The absolute humidity gradient of tested small space 5 is produced, which can substantially position the source at water source, in addition for a long time
The cumulative data of multi-state obtains variable gradient, can analyze circuit board corrosion Producing reason.
The utility model method temperature and humidity measurement element small by volume, integrated signal acquisition and automatic amendment system
System, carries out calculating analysis for the temperature-humidity signal of acquisition, can measure the absolute humidity gradient of small space measurement point, accurately
The research for the problems such as degree is high, can be for circuit board corrosion provides technical support.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (4)
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| CN201820417233.5U CN208398919U (en) | 2018-03-26 | 2018-03-26 | Measuring device for humidity gradient in narrow space |
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| CN201820417233.5U CN208398919U (en) | 2018-03-26 | 2018-03-26 | Measuring device for humidity gradient in narrow space |
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Effective date of registration: 20200804 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co.,Ltd. Address before: China Hong Kong Patentee before: NIO NEXTEV Ltd. |
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Address after: 230601 Building F, Hengchuang Intelligent Technology Park, No. 3963 Susong Road, Economic Development Zone, Hefei City, Anhui Province Patentee after: Weilai Holdings Ltd. Country or region after: China Address before: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: Weilai (Anhui) Holding Co.,Ltd. Country or region before: China |
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