CN202420763U - Remote calibration intelligent pressure transducer system - Google Patents
Remote calibration intelligent pressure transducer system Download PDFInfo
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- CN202420763U CN202420763U CN2011204173181U CN201120417318U CN202420763U CN 202420763 U CN202420763 U CN 202420763U CN 2011204173181 U CN2011204173181 U CN 2011204173181U CN 201120417318 U CN201120417318 U CN 201120417318U CN 202420763 U CN202420763 U CN 202420763U
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Abstract
The utility model discloses a remote calibration intelligent pressure transducer system. Whether the precision of P<detection N> is out of tolerance is determined based on the national prescribed pressure transducer calibration method, wherein P<detection N> indicates the input air pressure values of N intelligent pressure transducers; V <calibration source N> in a P-V-C <calibration source N> data table outputs a DC voltage, an air compressor pump is driven to pressurize the intelligent pressure transducer divided to N segments through an air passage, thereby the precision of the intelligent pressure transducer after calibration is guaranteed to be in a qualified scope.
Description
Technical field
The present invention relates to pressure calibration and remote measurement and control technology field, especially a kind of system through internet remote calibration pressure transducer.
Background technology
Intelligent pressure sensor is a kind of pressure transducer that has pressure sensor, signal conditioner, A-D converter, microprocessor, eeprom memory, possesses the ability of study, reasoning, perception, communication and management.Intelligent pressure sensor through free range, automatically revise all kinds of errors, automatically multinomial functions such as compensation guarantee its pinpoint accuracy, high s/n ratio and high resolving power, and the system performance that causes after modifying factor conditions and environment parameter changes is automatically drifted about.Multinomial function is to realize through the microprocessor of intelligent pressure sensor and storer intrinsic parameter.The parameter of intelligent pressure sensor leaves in the eeprom memory tables of data of intelligent pressure sensor.Intelligent pressure sensor needs to calibrate every half a year or 1 year the precision of measuring to guarantee, the parameter that the new argument after what is called just will be calibrated the calibration of intelligent pressure sensor is replaced original eeprom memory tables of data ensures the precision after intelligent pressure sensor is calibrated.According to ISO9000 chapter 4 11.2.b clause user must guarantee might influence the monitoring equipment normal operating condition of product quality, and in preset period, it is calibrated and adjusts.Use calibration or calibration equipment can trace back to the world or national the recognized standard.The method of calibration now or metering intelligent pressure sensor is to use national pressure criteria of generally acknowledging that present intelligent pressure sensor is calibrated or measured with integral device or with pulling down the metrological service that is sent to high one-level (country, provinces and cities, area) on the intelligent pressure sensor slave unit.Administration is approved than also needing metrological service the higher pressure calibration source except having pressure precision in metrological service.All adopt this method that intelligent pressure sensor is calibrated at present both at home and abroad.There is every year a large amount of intelligent pressure sensors to need calibration, needs to consume great amount of manpower and material resources and funds like this.At present, both at home and abroad all in the present situation of actively seeking to change and reduce this wasting of resources.For example: 1, application number is that the Chinese patent of CN200810220161.6 discloses the Chinese patent of " a kind of remote calibration method and system thereof " by name, and a kind of remote calibration method and system thereof that makes things convenient for correcting mechanism a large amount of instrument and equipments to be carried out remote monitoring is provided.The method only adapts to a large amount of instrument and equipments carries out the remote calibration source and is carried out data comparison and calibration by the school instrument and equipment, can't pass through network change and adjustment by the parameter of school instrument and equipment, also can't calibrate intelligent pressure sensor.2, application number is that the Chinese patent of CN201020189756.2 discloses the Chinese patent of " a kind of device of converting pressure calibration data into data tables " by name; Using P-V-C tables of data is carried out pressure calibration to the output characteristics of pressure measuring device P-V-C; Through the P-V-C tables of data parameter of pressure measuring device is replaced; Parameter displacement back pressure transducer measuring accuracy is improved, but this patent can't be carried out the remote calibration intelligent pressure sensor.
Summary of the invention
Can't carry out the deficiency of remote calibration intelligent pressure sensor in order to overcome prior art, the present invention adopts with P-V-C
Calibration source NP in the tables of data
Calibration source NBe pressure reference, according to the pressure transducer calibration steps of national regulation P to intelligent pressure sensor
Inspection NCheck whether precision is overproof, if precision is overproof, with P-V-C
Calibration source NTables of data is passed through Internet Server, internet computer terminal, Industrial Control Computer with P-V-C
Calibration source NV in the tables of data
Calibration source NOutput generates a new intelligent pressure sensor P-V-C through D/A transducer output dc voltage drive air compression pump through gas circuit divides the pressurization of N section to implement calibration to intelligent pressure sensor after
Calibration NTables of data is replaced original intelligent pressure sensor P-V-C
Inspection NTables of data ensures that the precision after the intelligent pressure sensor calibration is operated in the acceptability limit.
The technical solution adopted for the present invention to solve the technical problems is: comprise intelligent pressure sensor, air pressure pump control system, D/A transducer, Industrial Control Computer, internet computer terminal, Internet Server, tables of data calibration platform, P-V-C calibration source N data table stores device and pressure testing and controlling appearance.N is that calibration is counted, and is any natural number more than or equal to 1.
Whether the precision of at first checking intelligent pressure sensor is overproof, and intelligent pressure sensor has three groups of data P that need check precision
Inspection N, V
Inspection N, C
Inspection coefficient NAnd meet P
Inspection N=V
Inspection N* C
Inspection coefficient N, P wherein
Inspection NBe N intelligent pressure sensor input air pressure value, V
Inspection NBe N intelligent pressure sensor voltage value, C
Inspection coefficient NBe the calibration factor value of N intelligent pressure sensor, P
Inspection N, V
Inspection N, C
Inspection coefficient NThree groups of data are corresponding to one by one P-V-C
Inspection NThe form of tables of data leaves in the eeprom memory of intelligent pressure sensor and through Industrial Control Computer, internet computer terminal, internet, Internet Server and transfers to the tables of data calibration platform; The pressure testing and controlling appearance is exported N stable air pressure P as the pressure calibration source
Calibration source N, simultaneously to V should be arranged
Calibration source NAnd C
Calibration source coefficient NOutput and meet P
Calibration source N=V
Calibration source N* C
Calibration source coefficient N, wherein, P
Calibration source NBe N atmospheric pressure value of pressure testing and controlling appearance output, V
Calibration source NBe N magnitude of voltage of pressure testing and controlling appearance output, C
Calibration source coefficient NBe in the pressure testing and controlling appearance high-precision pressure sensor N calibration factor value, with P
Calibration source N, V
Calibration source N, C
Calibration source coefficient NThree groups of data after the calibration are corresponding one by one and be made into P-V-C
Calibration source NTables of data is with P-V-C
Calibration source NThe pressure calibration tables of data deposits P-V-C in
Calibration source NIn the data table stores device and export the tables of data calibration platform to, the tables of data calibration platform is taken out P-V-C
Calibration source NP in the data table stores device
Calibration source NAs the pressure criteria source according to the pressure transducer calibration steps of national regulation P to intelligent pressure sensor
Inspection NCarry out accuracy checking, whether check result is overproof, if precision is overproof, the tables of data calibration platform is with P-V-C
Calibration source NTo Industrial Control Computer, Industrial Control Computer is with P-V-C through Internet Server, internet, internet computer terminal for tables of data
Calibration sourceV in the tables of data
Calibration source NOutput converts direct voltage drive air pressure pump control system output pressure to through the D/A transducer, divides N section aerating compacting to execute calibration through gas circuit to intelligent pressure sensor, and the calibration back generates three groups of data P after the calibration
Calibration N, V
Calibration N, C
Calibration factor NAnd meet P
Calibration N=V
Calibration N* C
Calibration factor N, P wherein
Calibration NBe N input air pressure value after the intelligent pressure sensor calibration, V
Inspection Look into NBe N voltage value after the intelligent pressure sensor calibration, C
The calibration source coefficientBe N calibration factor value after the intelligent pressure sensor calibration, with the data P after the calibration
Calibration N, V
Calibration N, C
Calibration factor NThree groups of data respective production one by one become P-V-C
Calibration NTables of data is with P-V-C
Calibration NTables of data is with the original intelligent pressure sensor P-V-C of Industrial Control Computer displacement
Inspection NThereby tables of data ensures the precision after the intelligent pressure sensor calibration and is operated in the acceptability limit.
Described air pressure pump control system comprises compression pump controller, forward and reverse driver and miniature compression pump.Industrial Control Computer is with P-V-C
Calibration source NV in the tables of data
Calibration source NOutput is controlled forward and reverse driver through D/A transducer output dc voltage drive compression pump controller, drives miniature compression pump output pressure value and divides N section pressurization enforcement calibration back to generate P through gas circuit to intelligent pressure sensor
Calibration N, V
Calibration N, C
Calibration factor NCalibration data also is made into P-V-C
Calibration NTables of data is through the original intelligent pressure sensor P-V-C of Industrial Control Computer displacement
Inspection NTables of data.
Described intelligent pressure sensor comprises excitation power supply, pressure transducer, thermal resistance and intelligent pressure sensor P-V-C tables of data.Excitation power supply provides working power supply pressure sensor, thermal resistance, intelligent pressure sensor P-V-C tables of data; Miniature compression pump output pressure value is passed through gas circuit to pressure transducer; Pressure transducer output pressure value is to Industrial Control Computer; Thermal resistance output temperature value is to Industrial Control Computer, and intelligent pressure sensor leaves in the eeprom memory input and output in to Industrial Control Computer with the form of P-V-C tables of data.
The invention has the beneficial effects as follows: the present invention can carry out the remote calibration intelligent pressure sensor; Replace original intelligent pressure sensor tables of data with new intelligent pressure sensor tables of data; The intelligent pressure sensor tables of data parameter of displacement background storage can guarantee the precision of intelligent pressure sensor, has saved the great amount of manpower and material resources waste, practiced thrift the calibration of intelligent pressure sensor and has calibrated cost.The inventive method is simple, and is with low cost, and efficient is higher, and application prospect is quite extensive.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Description of drawings
Fig. 1 is device synoptic diagram of the present invention (wherein dotted line is a gas circuit);
Fig. 2 is air pressure pump control system synoptic diagram (wherein dotted line is a gas circuit);
Fig. 3 is intelligent pressure sensor synoptic diagram (wherein dotted line is a gas circuit).
Embodiment
Fig. 1 is a device synoptic diagram of the present invention, selects calibration point N=7.At first be the P-V-C of the intelligent pressure sensor of PSI-50-SF to model
Inspection 7Whether tables of data is carried out accuracy checking overproof.P-V-C
Inspection 7Tables of data has P
Inspection 7, V
Inspection Look into 7, C
Inspection coefficient 7Three groups of data and with P-V-C
Inspection 7The form of tables of data leaves in the eeprom memory of intelligent pressure sensor and exports Industrial Control Computer that model is IPC610, internet computer terminal, internet, model that model is MPCX300 to is that Internet Server to the model of INTEL XEON is the tables of data calibration platform of JCX6-1.The pressure testing and controlling appearance obtains P after exporting 7 stable gas pressure as the pressure calibration source
Calibration source 7Simultaneously to V should be arranged
Calibration source 7And C
Calibration source system Several 7Output.With P
Calibration source 7, V
Calibration source 7, C
Calibration source coefficient 7Calibration data be made into P-V-C
Calibration source 7Tables of data and to put into model be the storer of ST3100FDM and export the tables of data calibration platform to, the tables of data calibration platform is with P-V-C
Calibration source 7P in the tables of data
Calibration source 7As the pressure criteria source according to the pressure transducer calibration steps of national regulation P to intelligent pressure sensor
Inspection 7Check that the trueness error of check result intelligent pressure sensor is 0.18%, the error of instructions regulation is little and equals 0.15%, and is obviously overproof.The tables of data calibration platform is with P-V-C
Calibration source 7Tables of data is passed through Internet Server, internet, internet computer terminal, Industrial Control Computer with P-V-C
Calibration source 7V in the tables of data
Calibration source 7Output is that the D/A transducer of AD9755 converts direct voltage drive air pressure pump control system output pressure value to and intelligent pressure sensor divided 7 sections pressurizations implement calibration back generation P through gas circuit through model
Calibration 7, V
Calibration 7, C
Calibration factor 7Calibration data also is made into P-V-C
Calibration 7Tables of data, a new intelligent pressure sensor P-V-C
Calibration 7The tables of data trueness error of intelligent pressure sensor on inspection is 0.13% to meet accuracy requirement.With the original intelligent pressure sensor P-V-C of Industrial Control Computer displacement
Inspection 7Thereby tables of data ensures the precision after the intelligent pressure sensor calibration and is operated in the acceptability limit.
Fig. 2 is an air pressure pump control system synoptic diagram, comprises compression pump controller, forward and reverse driver, miniature compression pump.Industrial Control Computer is with P-V-C
Calibration source 7V in the tables of data
Calibration source 7It is that the compression pump controller control model of GDB-1 is that forward and reverse driver drives model of 224PLC-JCX is that the miniature compression pump output pressure value of VBH-JC divides 7 sections pressurizations to implement the calibration back through gas circuit to intelligent pressure sensor to generate P that output drives model through D/A transducer output dc voltage
Calibration 7, V
Calibration 7, C
Calibration factor 7Calibration data also is made into P-V-C
Calibration 7Tables of data is through the original intelligent pressure sensor P-V-C of Industrial Control Computer displacement
Inspection NTables of data.
Fig. 3 is the intelligent pressure sensor synoptic diagram, comprises excitation power supply, pressure transducer, thermal resistance and intelligent pressure sensor P-V-C tables of data.Adopt model be the excitation power supply of PSI-DY provide working power to supply with to adopt model be PSI9816 pressure transducer, to adopt model be that PT100 thermal resistance, model are the intelligent pressure sensor P-V-C tables of data of 24C32; Miniature compression pump output pressure value is passed through gas circuit to pressure transducer; Pressure transducer output pressure value is to Industrial Control Computer; Thermal resistance output temperature value is to Industrial Control Computer, and intelligent pressure sensor leaves in the eeprom memory input and output in to Industrial Control Computer with the form of P-V-C tables of data.
The present invention compared with prior art has following significant advantage:
1) metrological service provides high first class pressure standard through the internet intelligent pressure sensor to be checked and calibrated.
2) saved and pressure source is delivered to the various expenses of high one-level measurement unit huge economic benefit and social benefit are arranged.
3) method is simple, with low cost, efficient is higher, has practiced thrift the cost of inspection and calibration intelligent pressure sensor.
The course of work: at first to the P-V-C of intelligent pressure sensor
Inspection NWhether tables of data is carried out accuracy checking overproof, P-V-C
Inspection NTables of data has P
Inspection N, V
Inspection N, C
Inspection coefficient NThree groups of data and with P-V-C
Inspection NThe form of tables of data leave in the eeprom memory of intelligent pressure sensor and export Industrial Control Computer, internet computer terminal to, through internet, Internet Server to tables of data calibration platform.The pressure testing and controlling appearance obtains N P after exporting N stable gas pressure as the pressure calibration source
Calibration source NSimultaneously to V should be arranged
Calibration source NAnd C
Calibration source coefficient NOutput.With P
Calibration source N, V
Calibration source N, C
Calibration source system Number NCalibration data be made into P-V-C
Calibration source NTables of data is also put into storer, obtains P-V-C
Calibration source 7The pressure calibration tables of data also exports the tables of data calibration platform to, and the tables of data calibration platform is with P-V-C
Calibration source NP in the tables of data
Calibration source NAs the pressure criteria source according to the pressure transducer calibration steps of national regulation P to intelligent pressure sensor
Inspection NCheck that the check result precision is overproof, the tables of data calibration platform is with P-V-C
Calibration source NTables of data is passed through Internet Server, internet computer terminal, Industrial Control Computer with P-V-C
Calibration source NV in the tables of data
Calibration source NOutput converts direct voltage drive air pressure pump control system output pressure to through the D/A transducer and through gas circuit divides the pressurization of N section to implement calibration to intelligent pressure sensor after, produces P
Calibration N, V
Calibration N, C
Calibration factor NCalibration data also is made into P-V-C
Calibration NTables of data, a new intelligent pressure sensor P-V-C
Calibration NTables of data is with the original intelligent pressure sensor P-V-C of Industrial Control Computer displacement
Inspection NThereby tables of data ensures the precision after the intelligent pressure sensor calibration and is operated in the acceptability limit.
Claims (3)
1. a remote calibration intelligent pressure sensor system comprises intelligent pressure sensor, air pressure pump control system, D/A transducer, Industrial Control Computer, internet computer terminal, Internet Server, tables of data calibration platform, P-V-C
Calibration source NData table stores device and pressure testing and controlling appearance is characterized in that: N is that calibration is counted, and is any natural number more than or equal to 1; Intelligent pressure sensor has three groups of data P that need check precision
Inspection N, V
Inspection N, C
Inspection coefficient NAnd meet P
Inspection N=V
Inspection N* C
Inspection coefficient N, P wherein
Inspection NBe N intelligent pressure sensor input air pressure value, V
Inspection NBe N intelligent pressure sensor voltage value, C
Inspection coefficient NBe the calibration factor value of N intelligent pressure sensor, transfer to the tables of data calibration platform through Industrial Control Computer, internet computer terminal, internet, Internet Server, the pressure testing and controlling appearance is exported N stable air pressure P as the pressure calibration source
Calibration source N, simultaneously to V should be arranged
Calibration source NAnd C
Calibration source coefficient NOutput and meet P
Calibration source N=V
Calibration source N* C
Calibration source coefficient N, wherein, P
Calibration source NBe N atmospheric pressure value of pressure testing and controlling appearance output, V
Calibration source NBe N magnitude of voltage of pressure testing and controlling appearance output, C
Calibration source coefficient NBe in the pressure testing and controlling appearance high-precision pressure sensor N calibration factor value, the tables of data calibration platform is with P-V-C
Calibration source NTo Industrial Control Computer, Industrial Control Computer is with P-V-C through Internet Server, internet, internet computer terminal for tables of data
Calibration sourceV in the tables of data
Calibration source NOutput converts direct voltage drive air pressure pump control system output pressure to through the D/A transducer, divides N section aerating compacting to execute calibration through gas circuit to intelligent pressure sensor, and the calibration back generates three groups of data P after the calibration
Calibration N, V
Calibration N, C
Calibration factor NAnd meet P
Calibration N=V
Calibration N* C
Calibration factor N, P wherein
Calibration NBe N input air pressure value after the intelligent pressure sensor calibration, V
Inspection NBe N voltage value after the intelligent pressure sensor calibration, C
The calibration source coefficientBe N calibration factor value after the intelligent pressure sensor calibration.
2. remote calibration intelligent pressure sensor according to claim 1 system, it is characterized in that: described air pressure pump control system comprises compression pump controller, forward and reverse driver and miniature compression pump, and Industrial Control Computer is with P-V-C
Calibration source NV in the tables of data
Calibration source NOutput is controlled forward and reverse driver through D/A transducer output dc voltage drive compression pump controller, drives miniature compression pump output pressure value and divides the pressurization of N section through gas circuit to intelligent pressure sensor.
3. remote calibration intelligent pressure sensor according to claim 1 system; It is characterized in that: described intelligent pressure sensor comprises excitation power supply, pressure transducer, thermal resistance and intelligent pressure sensor P-V-C tables of data; Excitation power supply provides working power supply pressure sensor, thermal resistance, intelligent pressure sensor P-V-C tables of data; Miniature compression pump output pressure value is passed through gas circuit to pressure transducer; Pressure transducer output pressure value is to Industrial Control Computer, and thermal resistance output temperature value is to Industrial Control Computer, and intelligent pressure sensor leaves in the eeprom memory input and output in to Industrial Control Computer with the form of P-V-C tables of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204173181U CN202420763U (en) | 2011-10-27 | 2011-10-27 | Remote calibration intelligent pressure transducer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204173181U CN202420763U (en) | 2011-10-27 | 2011-10-27 | Remote calibration intelligent pressure transducer system |
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| Publication Number | Publication Date |
|---|---|
| CN202420763U true CN202420763U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204173181U Expired - Fee Related CN202420763U (en) | 2011-10-27 | 2011-10-27 | Remote calibration intelligent pressure transducer system |
Country Status (1)
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| CN (1) | CN202420763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435392A (en) * | 2011-10-27 | 2012-05-02 | 西北工业大学 | Remote intelligent pressure sensor calibration system |
| CN110440982A (en) * | 2019-09-16 | 2019-11-12 | 大唐半导体科技有限公司 | A kind of full-automatic control system for the calibration of air compressor machine sensor parameters |
-
2011
- 2011-10-27 CN CN2011204173181U patent/CN202420763U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435392A (en) * | 2011-10-27 | 2012-05-02 | 西北工业大学 | Remote intelligent pressure sensor calibration system |
| CN102435392B (en) * | 2011-10-27 | 2014-02-05 | 西北工业大学 | Remote intelligent pressure sensor calibration system |
| CN110440982A (en) * | 2019-09-16 | 2019-11-12 | 大唐半导体科技有限公司 | A kind of full-automatic control system for the calibration of air compressor machine sensor parameters |
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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: 20120905 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |