CN108225617A - Sensor calibration apparatus and scaling method - Google Patents
Sensor calibration apparatus and scaling method Download PDFInfo
- Publication number
- CN108225617A CN108225617A CN201711437314.8A CN201711437314A CN108225617A CN 108225617 A CN108225617 A CN 108225617A CN 201711437314 A CN201711437314 A CN 201711437314A CN 108225617 A CN108225617 A CN 108225617A
- Authority
- CN
- China
- Prior art keywords
- sensor
- data
- calibration
- metrical instrument
- calibration software
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention belongs to sensor technical fields, and in particular to a kind of sensor calibration apparatus and scaling method.Sensor calibration apparatus of the present invention, including calibration software, metrical instrument and data acquisition channel, the metrical instrument and the data acquisition channel can be communicated with the calibration software respectively to be connected, the calibration software can acquire the data information of the metrical instrument and the data acquisition channel simultaneously, the metrical instrument can provide stationary temperature for sensor to be calibrated or pressure is acquired for the sensor, and the collected data of sensor can be sent to the calibration software after data acquisition channel processing and be demarcated.By using sensor calibration apparatus of the present invention and scaling method, the data in metrical instrument and data acquisition channel can be acquired simultaneously, effectively accuracy index, repeatability index, noise objective and the linear index of sensor are calculated, complete the amendment to sensor.
Description
Technical field
The invention belongs to sensor technical fields, and in particular to a kind of sensor calibration apparatus and scaling method.
Background technology
At present in the scaling method of temperature or pressure sensor routine, using standard metering instrument and sensor passage into
Row single-point compares, and obtains cutting edge aligned correction formula.The calibration numerical value of the several single-points for being limited in that selection of conventional method can not
The indexs such as the accuracy, repeatability, noise of sensor are calculated, still will appear sensor after the completion of demarcating and correcting leads to
Road drift, the problems such as measurement fluctuation is big, the state of analyte sensors or even can comprehensively can not cause due to sensor measurement not
Accurate, replacement leads to duplicate measurements not in time, greatly wastes experiment resource.
Invention content
The purpose of the present invention is to solve above-mentioned at least one problem, which is by the following technical programs
It realizes.
The present invention proposes a kind of sensor calibration apparatus, is acquired including calibration software, metrical instrument and data logical
Road, the metrical instrument and the data acquisition channel can be communicated respectively with the calibration software and be connected, the calibration software
The data information of the metrical instrument and the data acquisition channel can be acquired simultaneously, and the metrical instrument can be to be calibrated
Sensor stationary temperature or pressure are provided are acquired for the sensor, the collected data of sensor can be through
The calibration software is sent to after the data acquisition channel processing to be demarcated.
Further, the sensor is one kind in pressure sensor or temperature sensor.
Further, the precision of the metrical instrument is higher than the precision of the sensor, and the metrical instrument can lead to
It crosses to communicate to connect with display and realizes that registration is readable.
Further, the frequency acquisition of the sensor is 1Hz.
Further, the metrical instrument sets the scale division value of 10 points according to the transducer range, and the calibration is soft
The recording frequency of part is 5Hz, and the record time of each collection point is 30s.
The invention also provides a kind of transducer calibration methods, are carried out according to sensor calibration apparatus described above real
It applies, includes the following steps：
The metrical instrument is set as to the scale division value of ten points according to the range of the sensor；
It is 5Hz by the set of frequency of calibration software, it is 30s that duration is recorded after the stable reading of the sensor；
Acquire the data of the metrical instrument and the data of the data acquisition channel simultaneously using the calibration software；
The data of the collected metrical instrument and the data of the data acquisition channel are exported；
Data after export are analyzed and processed, obtain the accuracy index of the sensor, repeatability index, noise
Index and linear index；
Limit value processing is carried out to the accuracy index of the sensor, repeatability index, noise objective and linear index,
Obtain the correction factor of the sensor；
The sensor is modified using the correction factor.
Further, by the metrical instrument according to the full scale of the sensor, zero, a quarter range, two points
One of range, 3/4ths ranges, full scale, 3/4ths ranges, half range, a quarter range and zero successively
Sequence is set as ten scale division values.
Further, using AVERAGE, SQRT, SLOPE, STEYX, RSQ and INTERCEPT in VBA tools to export after
Data analyzed and processed, obtain the accuracy index of the sensor, repeatability index, noise objective and linearly refer to
Mark.
Further, it when the sensor is temperature sensor, further includes to respond the T90 of the temperature sensor and survey
Examination, includes the following steps：
After the temperature sensor is corrected, by the full scale shape of metrical instrument setting to the temperature sensor
State；
After the registration of the data transmission channel is stablized, the temperature sensor is inserted into ice water, while by described in
Calibration software is arranged to the recording frequency of 1Hz and acquires the data of the data transmission channel in real time by the calibration software；
The collected data of the calibration software are exported, and limit value processing is carried out to the data, the temperature is obtained and passes
The T90 response times of sensor.
Further, it when the sensor is pressure sensor, further includes to respond the T90 of the pressure sensor and survey
Examination, includes the following steps：
After the pressure sensor is corrected, by the full scale shape of metrical instrument setting to the pressure sensor
State；
After the registration of the data transmission channel is stablized, by the pressure sensor pressure release, and meanwhile the calibration is soft
Part is arranged to the recording frequency of 1Hz and acquires the data of the data transmission channel in real time by the calibration software；
The collected data of the calibration software are exported, and limit value processing is carried out to the data, the pressure is obtained and passes
The T90 response times of sensor.
By using sensor calibration apparatus of the present invention and scaling method, metrical instrument sum number can be acquired simultaneously
According to the data in acquisition channel, freely set acquisition and both recording frequencies, real-time synchronization data and realize continuous record, effectively
Ground calculates accuracy index, repeatability index, noise objective and the linear index of sensor, completes to sensor
It corrects.
Meanwhile by using sensor calibration apparatus of the present invention and scaling method, utilize the tool analysis in VBA
Obtaining the indexs of correlation such as accuracy, repeatability, noise and the linear regression of sensor, comprehensive analysis obtains correction factor,
Calibration result is relatively reliable.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the structure principle chart of the embodiment of the present invention；
Fig. 2 is the method flow diagram that transducer calibration is carried out using embodiment in Fig. 1；
Fig. 3 is the schematic diagram that calibration point record is carried out using embodiment in Fig. 1.
Respectively label represents as follows in attached drawing：
10：Calibration software, 20：Metrical instrument, 30：Data acquisition channel, 40：Sensor.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure, and can be by this public affairs on the contrary, providing these embodiments
The range opened completely is communicated to those skilled in the art.
Fig. 1 is the structure principle chart of the embodiment of the present invention.Fig. 2 is the side that transducer calibration is carried out using embodiment in Fig. 1
Method flow chart.Fig. 3 is the schematic diagram that calibration point record is carried out using embodiment in Fig. 1.As shown in Figure 1, the biography in the present embodiment
Sensor caliberating device, including calibration software 10, metrical instrument 20 and data acquisition channel 30.Metrical instrument 20 and data acquisition are logical
Road 30 can be communicated respectively with calibration software 10 and be connected, and calibration software 10 can acquire metrical instrument 20 simultaneously and data acquisition is logical
The data information in road 30, metrical instrument 20 can be that sensor 40 to be calibrated provides stationary temperature or pressure supplies sensor 40
It is acquired, 40 collected data of sensor can be sent to calibration software 10 into rower after the processing of data acquisition channel 30
It is fixed.
Wherein, sensor 40 is one kind in pressure sensor or temperature sensor.
Being demarcated to sensor 40 in order to be more accurate, the precision of metrical instrument 20 are higher than the precision of sensor 40,
And metrical instrument 20 can realize that registration is readable by communicating connection with display.Wherein, metrical instrument 20 is according to sensor 40
Range the scale division values of 10 points is set, the frequency acquisition of sensor 40 is 1Hz, and the recording frequency of calibration software 10 is set as
5Hz, the record time of each collection point is 30s.In this way, each collection point includes 150 data points, metrical instrument acquires altogether
1500 data points.
As shown in Fig. 2, sensor 40 is demarcated using the sensor calibration apparatus in the present embodiment, including following step
Suddenly：
Metrical instrument 20 is set as to the scale division value of ten points according to the range of sensor 40.
As shown in figure 3, in the present embodiment, metrical instrument 20 is according to the full scale of sensor 40, zero, a quarter amount
Journey, half range, 3/4ths ranges, full scale, 3/4ths ranges, half range, a quarter range and
Zero is sequentially set as ten scale division values successively.
It is 5Hz by the set of frequency of calibration software 10, it is 30s that duration is recorded after the stable reading of sensor 40.
In this recording process, each collection point includes 150 data points, and ten scale division values amount to 1500 data points,
So as to continuously acquire the data of metrical instrument 20 and data transmission channel 30.Record demarcated the temperature of environment at that time simultaneously
Degree, humidity, pressure and time can be used in inspection of the later stage to calibration and response time.
The data of metrical instrument 20 and the data of data acquisition channel 30 are acquired using calibration software 10 simultaneously.
The data of collected metrical instrument 20 and the data of data acquisition channel 30 are exported.
Data after export are analyzed and processed, the accuracy index of sensor 40, repeatability index, noise is obtained and refers to
It is marked with and linear index.
It is related using AVERAGE, SQRT, SLOPE, STEYX, RSQ and INTERCEPT etc. in VBA tools in the present embodiment
Tool analyzes and processes the data after export, obtain the accuracy index of sensor 40, repeatability index, noise objective with
And linear index.
Limit value processing is carried out to the accuracy index of sensor 40, repeatability index, noise objective and linear index, is obtained
To the correction factor of sensor 40.
It is provided according to relevant laws and regulations, referred to the accuracy index of sensor 40, repeatability index, noise objective and linearly
Target upper limit value and lower limit value is provided, so as to which off-limits data be deleted, the indices data according to as defined in meeting
Calculate the correction factor of sensor 40.
Sensor 40 is modified using correction factor.
Further, when sensor 40 is temperature sensor, which further includes the T90 to temperature sensor 40
Response test includes the following steps：
After temperature sensor is corrected, by the full scale state of metrical instrument setting to temperature sensor.
After the registration of data transmission channel 30 is stablized, temperature sensor is inserted into ice water, while by calibration software 10
It is arranged to the recording frequency of 1Hz and passes through the data of 10 real-time data collection transmission channel 30 of calibration software.
10 collected data of calibration software are exported, and limit value processing is carried out to data, the T90 for obtaining temperature sensor is rung
Between seasonable.
Further, when sensor 40 is pressure sensor, the T90 response tests to pressure sensor are further included, are wrapped
Include following steps：
After pressure sensor is corrected, by the full scale state of metrical instrument setting to pressure sensor.
After the registration of data transmission channel 30 is stablized, it is arranged to by pressure sensor pressure release, while by calibration software 10
The recording frequency of 1Hz and the data for passing through 10 real-time data collection transmission channel 30 of calibration software.
10 collected data of calibration software are exported, and limit value processing is carried out to data, the T90 for obtaining pressure sensor is rung
Between seasonable.
By using sensor calibration apparatus of the present invention and scaling method, metrical instrument sum number can be acquired simultaneously
According to the data in acquisition channel, freely set acquisition and both recording frequencies, real-time synchronization data and realize continuous record, effectively
Ground calculates accuracy index, repeatability index, noise objective and the linear index of sensor, completes to sensor
It corrects.
Meanwhile by using sensor calibration apparatus of the present invention and scaling method, utilize the tool analysis in VBA
Obtaining the indexs of correlation such as accuracy, repeatability, noise and the linear regression of sensor, comprehensive analysis obtains correction factor,
Calibration result is relatively reliable.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (10)
1. a kind of sensor calibration apparatus, which is characterized in that described including calibration software, metrical instrument and data acquisition channel
Metrical instrument and the data acquisition channel can be communicated with the calibration software respectively to be connected, and the calibration software can be simultaneously
The data information of the metrical instrument and the data acquisition channel is acquired, the metrical instrument can be sensor to be calibrated
Stationary temperature is provided or pressure is acquired for the sensor, the collected data of sensor can be through the data
The calibration software is sent to after acquisition channel processing to be demarcated.
2. sensor calibration apparatus according to claim 1, which is characterized in that the sensor is pressure sensor or temperature
Spend one kind in sensor.
3. sensor calibration apparatus according to claim 1, which is characterized in that the precision of the metrical instrument is higher than described
The precision of sensor, and the metrical instrument can realize that registration is readable by communicating connection with display.
4. sensor calibration apparatus according to claim 1, which is characterized in that the frequency acquisition of the sensor is 1Hz.
5. sensor calibration apparatus according to claim 1, which is characterized in that the metrical instrument is according to the sensor
Range sets the scale division value of 10 points, and the recording frequency of the calibration software is 5Hz, and the record time of each collection point is 30s.
A kind of 6. transducer calibration method, which is characterized in that the sensor mark according to any one of the claims 1-5
Determine device to be implemented, include the following steps：
The metrical instrument is set as to the scale division value of ten points according to the range of the sensor；
It is 5Hz by the set of frequency of calibration software, it is 30s that duration is recorded after the stable reading of the sensor；
Acquire the data of the metrical instrument and the data of the data acquisition channel simultaneously using the calibration software；
The data of the collected metrical instrument and the data of the data acquisition channel are exported；
Data after export are analyzed and processed, obtain the accuracy index of the sensor, repeatability index, noise objective
And linear index；
Limit value processing is carried out to the accuracy index of the sensor, repeatability index, noise objective and linear index, is obtained
The correction factor of the sensor；
The sensor is modified using the correction factor.
7. transducer calibration method according to claim 6, which is characterized in that by the metrical instrument according to the sensing
The full scale of device, zero, a quarter range, half range, 3/4ths ranges, full scale, 3/4ths ranges, two
/ mono- range, a quarter range and zero are sequentially set as ten scale division values successively.
8. transducer calibration method according to claim 6, which is characterized in that using AVERAGE, SQRT in VBA tools,
SLOPE, STEYX, RSQ and INTERCEPT analyze and process the data after export, and the accuracy for obtaining the sensor refers to
Mark, repeatability index, noise objective and linear index.
9. according to the transducer calibration method described in any one of claim 6-8, when the sensor is temperature sensor,
It is characterized in that, further including the T90 response tests to the temperature sensor, include the following steps：
After the temperature sensor is corrected, by the full scale state of metrical instrument setting to the temperature sensor；
After the registration of the data transmission channel is stablized, the temperature sensor is inserted into ice water, while by the calibration
Software is arranged to the recording frequency of 1Hz and acquires the data of the data transmission channel in real time by the calibration software；
The collected data of the calibration software are exported, and limit value processing is carried out to the data, obtain the temperature sensor
The T90 response times.
10. according to the transducer calibration method described in any one of claim 6-8, when the sensor is pressure sensor
When, which is characterized in that the T90 response tests to the pressure sensor are further included, are included the following steps：
After the pressure sensor is corrected, by the full scale state of metrical instrument setting to the pressure sensor；
After the registration of the data transmission channel is stablized, set by the pressure sensor pressure release, while by the calibration software
It is set to the recording frequency of 1Hz and acquires the data of the data transmission channel in real time by the calibration software；
The collected data of the calibration software are exported, and limit value processing is carried out to the data, obtain the pressure sensor
The T90 response times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437314.8A CN108225617A (en) | 2017-12-26 | 2017-12-26 | Sensor calibration apparatus and scaling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437314.8A CN108225617A (en) | 2017-12-26 | 2017-12-26 | Sensor calibration apparatus and scaling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108225617A true CN108225617A (en) | 2018-06-29 |
Family
ID=62649156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711437314.8A Pending CN108225617A (en) | 2017-12-26 | 2017-12-26 | Sensor calibration apparatus and scaling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108225617A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207863A (en) * | 2019-06-04 | 2019-09-06 | 北京化工大学 | Improve the method and system of nanometer resistance-type mechanics sensor stability |
| CN111501895A (en) * | 2020-03-23 | 2020-08-07 | 潍柴动力股份有限公司 | Calibration method, calibration device and calibration system for excavator sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381111A (en) * | 2012-09-07 | 2013-11-06 | 吴志宏 | Wireless pressure test system |
-
2017
- 2017-12-26 CN CN201711437314.8A patent/CN108225617A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381111A (en) * | 2012-09-07 | 2013-11-06 | 吴志宏 | Wireless pressure test system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207863A (en) * | 2019-06-04 | 2019-09-06 | 北京化工大学 | Improve the method and system of nanometer resistance-type mechanics sensor stability |
| CN110207863B (en) * | 2019-06-04 | 2020-06-02 | 北京化工大学 | Method and system for improving stability of nano resistance type mechanical sensor |
| CN111501895A (en) * | 2020-03-23 | 2020-08-07 | 潍柴动力股份有限公司 | Calibration method, calibration device and calibration system for excavator sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Flo et al. | A synthesis of bias and uncertainty in sap flow methods | |
| CN102879353B (en) | The method of content of protein components near infrared detection peanut | |
| CN102590129B (en) | Method for detecting content of amino acid in peanuts by near infrared method | |
| DK2108120T3 (en) | Method and device for non-destructive testing using eddy currents | |
| WO2017084119A1 (en) | Near-infrared physical parameter measuring method having measuring-point-free temperature compensation function | |
| CN106033052B (en) | A kind of vegetation information extraction method based on high-spectral data sensitive band | |
| EA200900029A1 (en) | METHOD OF CREATING MULTI-DIMENSIONAL GRADUATION MODELS RESISTANT TO CHANGES IN PROPERTIES AFFECTING THE DEVICE MEASUREMENT RESULTS | |
| CN108225617A (en) | Sensor calibration apparatus and scaling method | |
| CN111766327A (en) | Calibration method of on-line gas chromatograph | |
| Masharipov et al. | Verification of food testing methods in the operations of accredited testing laboratories according to ISO/IEC 17025: 2017 | |
| CN105259136B (en) | Near infrared correction without measuring point temperature correction | |
| CN115791891A (en) | Structural damage identification method and system based on piezoelectric impedance technology | |
| CN116985183A (en) | Quality monitoring and management method and system for near infrared spectrum analyzer | |
| CN111141809B (en) | Soil nutrient ion content detection method based on non-contact type conductivity signal | |
| CN110672058B (en) | On-line calibration data sequence matching method and device of sensor for structure monitoring | |
| CN101303340A (en) | Method for performing quality control with patient specimen testing result difference value | |
| CN105300924A (en) | Measuring point-free compensation modeling method of near infrared calibration model under effect of temperature | |
| CN106872397A (en) | A kind of method based on existing calibration model quick detection agricultural product chemical constituent | |
| US20080087818A1 (en) | Ion trap mobility spectrometer calibration method and system | |
| CN106092960A (en) | A kind of quick correction near infrared gear also detects the method for chemical composition in agricultural product | |
| CN103837484B (en) | A kind of angular multivariable technique for eliminating the spectrum property taken advantage of random error | |
| CN105424229A (en) | Pressure detection apparatus for near infrared instrument and detection method thereof | |
| CN110489604A (en) | A kind of analytic method and system for gas turbin test measurement data | |
| Menesatti et al. | Prediction of blood orange MT firmness by multivariate modelling of low alterative penetrometric data set: A preliminary study | |
| US20230414125A1 (en) | Health Trackers for Autonomous Targeting of Tissue Sampling Sites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |