CN109855798A - A kind of portable pressure in-line calibration device based on PXI bussing technique - Google Patents

A kind of portable pressure in-line calibration device based on PXI bussing technique Download PDF

Info

Publication number
CN109855798A
CN109855798A CN201811499813.4A CN201811499813A CN109855798A CN 109855798 A CN109855798 A CN 109855798A CN 201811499813 A CN201811499813 A CN 201811499813A CN 109855798 A CN109855798 A CN 109855798A
Authority
CN
China
Prior art keywords
pxi
pressure
portable
acquisition module
calibration device
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
Application number
CN201811499813.4A
Other languages
Chinese (zh)
Inventor
刘晓旭
张鹏程
张修建
谢阳
王兵
张铁犁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Aerospace Institute for Metrology and Measurement Technology filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201811499813.4A priority Critical patent/CN109855798A/en
Publication of CN109855798A publication Critical patent/CN109855798A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a kind of portable pressure in-line calibration device based on PXI bussing technique, belong to pressure measurement technical field, including portable PXI cabinet, PXI power supply module, PXI DC current acquisition module, PXI DC voltage acquisition module, display, keyboard, controller and standard pressure transducer;Controller is connected with PXI power supply module, PXI DC current acquisition module, PXI DC voltage acquisition module, display, keyboard respectively by PXI bus, display, keyboard, controller etc. are integrated in portable PXI cabinet, and PXI power supply module, PXI DC current acquisition module and PXI DC voltage acquisition module are connected with standard pressure transducer respectively.Portable pressure in-line calibration device based on PXI bussing technique of the invention is able to solve the fast and automatically change calibrating of pressure sensor, reduces the quantity and volume of normal pressure equipment, greatly promotes the calibrating efficiency of pressure sensor.

Description

A kind of portable pressure in-line calibration device based on PXI bussing technique
Technical field
The present invention relates to a kind of portable pressure in-line calibration device based on PXI bussing technique is used for pressure sensor In-line calibration, in-line calibration is carried out to the error of indication of pressure sensor in pipeline, repeated parameter, belongs to pressure measurement skill Art field.
Background technique
Now each type III pressure vessel, in pressure delivery equipment, largely measured and monitored in pipeline using pressure sensor Pressure medium, if these pressure sensors failure cause display malfunction, can have security risk.According to state's domestic discipline and family rules Fixed, for the accuracy for ensuring pressure detecting, above-mentioned pressure sensor needs periodically to be examined and determine by professional metrological service.
The calibration method of existing pressure sensor is: being sent to professional institution after above-mentioned pressure sensor is removed and examines It is fixed, but due to removing and installation process is likely to result in helicitic texture and is undermined leakage again.
In-line calibration can effectively solve the above problem, and pressure in-line calibration is mainly with pressure sensor, number pressure at present Power is counted as being connected into tested pressure gauge pipeline for standard, when standard is pressure sensor, it is also necessary to configure power supply and supply for it Electricity, and the analog quantity that standard transducer exports is read using DC ammeter/D.C. voltmeter, so that number of devices is more, no It is easy to carry, it is unfavorable for the raising of working efficiency;In addition, being detected pressure sensor output valve with the raising of automatization level It is generally obtained by its host computer, and feedback and control as some movements, if it is possible to realize calibrating installation and its host computer It is communicated to obtain tested pressure sensor numerical value, it will calibrating efficiency is greatly improved, becoming automation pressure calibration can Energy.
Therefore it provides it is a kind of miniaturization, automation pressure in-line calibration device, by on accredited pressure sensor Position machine is communicated, and realizes the on-line automaticization calibrating of pressure sensor, it is difficult just to become technical field technology urgently to be solved Topic.
Summary of the invention
It is an object of the present invention to provide a kind of portable pressure in-line calibration device based on PXI bussing technique overcomes existing There is defect of the pressure in-line calibration method in terms of portability, automation, establishes a kind of miniaturization, automation using PXI bus Pressure in-line calibration method realize the online of pressure sensor by being communicated with accredited pressure sensor host computer Automatic calibration.
Above-mentioned purpose of the invention reaches by the following technical programs
A kind of portable pressure in-line calibration device based on PXI bussing technique, it is characterised in that: including portable PXI Cabinet, PXI power supply module, PXI DC current acquisition module, PXI DC voltage acquisition module, display, keyboard, controller with And standard pressure transducer;The controller acquires mould with the PXI power supply module, PXI DC current respectively by PXI bus Block, PXI DC voltage acquisition module, display, keyboard are connected, the display, keyboard, controller, PXI power supply module, PXI DC current acquisition module and PXI DC voltage acquisition module are integrated in portable PXI cabinet, the PXI power supply mould Block, PXI DC current acquisition module and PXI DC voltage acquisition module are connected with the standard pressure transducer respectively.
Preferably, the portable PXI cabinet is equipped with 4 or more PXI slots.
Preferably, the controller is equipped with network interface and serial ports.
Preferably, the PXI slot provides network interface, RS232/RS422 serial ports.
Preferably, the standard pressure transducer acquisition pressure mode can be serial ports, DC voltage (1~5) V, (4~20) Tri- kinds of modes of mA.
Preferably, the measurement range of the standard pressure transducer should be greater than or equal to tested pressure sensor measurement model It encloses.
Preferably, it is maximum to be no more than tested pressure sensor for the limits of error absolute value of the standard pressure transducer The 1/2 of allowable error absolute value.
The utility model has the advantages that
Portable pressure in-line calibration device based on PXI bussing technique of the invention is built upon on PXI bussing technique, By by display, keyboard, controller, standard transducer power supply module, DC current acquisition module, DC voltage acquisition module Be integrated in a miniaturization, portability PXI cabinet in, and using network interface, serial ports realize with tested pressure sensor host computer Communication, it is automatic to obtain tested pressure sensor numerical value, it is compared, reduces with the standard pressure transducer of outfit acquisition numerical value Manual operation bring error.
Portable pressure in-line calibration device based on PXI bussing technique of the invention is able to solve the fast of pressure sensor Speed, automatic calibration reduce the quantity and volume of normal pressure equipment, greatly promote the calibrating efficiency of pressure sensor.
Elaborate with reference to the accompanying drawings and detailed description to the present invention: the present embodiment is with the technology of the present invention side Implemented under premised on case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not It is limited to following embodiments.
Detailed description of the invention
Fig. 1 is that the present invention is based on the structural schematic diagrams of the portable pressure in-line calibration device of PXI bussing technique.
Fig. 2 is that the present invention is based on the application connection figures of the portable pressure in-line calibration device of PXI bussing technique.
Specific embodiment
Embodiment 1
As shown in Figure 1, for the present invention is based on the structural representations of the portable pressure in-line calibration device of PXI bussing technique Figure;
A kind of portable pressure in-line calibration device based on PXI bussing technique, including portable PXI cabinet, PXI power supply Module, PXI DC current acquisition module, PXI DC voltage acquisition module, display, keyboard, controller and normal pressure pass Sensor;Controller acquires mould with PXI power supply module, PXI DC current acquisition module, PXI DC voltage respectively by PXI bus Block, display, keyboard are connected, display, keyboard, controller, PXI power supply module, PXI DC current acquisition module and PXI DC voltage acquisition module is integrated in portable PXI cabinet, and PXI power supply module, PXI DC current acquisition module and PXI are straight Stream voltage acquisition module is connected with standard pressure transducer respectively;Portable PXI cabinet is equipped with 4 or more PXI slots;PXI Slot provides network interface, RS232/RS422 serial ports;Standard pressure transducer acquire pressure mode can for serial ports, DC voltage (1~ 5) tri- kinds of V, (4~20) mA modes;The measurement range of standard pressure transducer should be greater than or equal to tested pressure sensor survey Measure range;It is absolute that the limits of error absolute value of standard pressure transducer is no more than the tested pressure sensor limits of error The 1/2 of value;Portable PXI cabinet integrates display, keyboard, controller, have the characteristics that miniaturization, it is light-weight, 4 or more PXI slots are capable of providing, network interface, RS232/RS422 serial ports are capable of providing;PXI power supply module can be normal pressure Sensor provides DC voltage, and the specific nominal supply voltage of voltage value establishing criteria pressure sensor executes;PXI DC current is adopted Collection module is used to acquire (4~20) mA DC current values of standard pressure transducer output, generally takes up a PXI slot, adopts Current collection flow valuve is sent to portable PXI crate controller by PXI bus;PXI DC voltage acquisition module is for acquiring standard (1~5) V DC voltage value of pressure sensor output, generally takes up a PXI slot, collection voltages value is sent out by PXI bus Give portable PXI crate controller;It can be serial ports, DC voltage (1~5) V, (4 that standard pressure transducer, which acquires pressure mode, ~20) tri- kinds of modes of mA, measurement range should be greater than or equal to tested pressure sensor measurement range, the limits of error Absolute value is no more than the 1/2 of tested pressure sensor limits of error absolute value.
As shown in Fig. 2, for the present invention is based on the application connections of the portable pressure in-line calibration device of PXI bussing technique Figure;When carrying out pressure sensor in-line calibration, standard pressure transducer is connected to tested pressure sensing by pipe joint Where device in pipeline, while portable PXI cabinet being passed through on the network interface/serial ports and tested pressure sensor on controller module Position machine is attached, the automatic adjustment of loine pressure and tested pressure sensor pressure value where realizing tested pressure sensor Automatic acquisition;It is standard pressure transducer power supply by PXI power supply module, while according to standard pressure transducer signal output class Type selects portable PXI crate controller serial ports, PXI DC current acquisition module, PXI DC voltage acquisition module to acquire Standard pressure transducer signal, using the comparison of standard pressure transducer numerical value and tested pressure sensor numerical value, realize it is online, Automation, portability calibrating.
Portable pressure in-line calibration device based on PXI bussing technique of the invention is based on PXI bus principle, using collection The portable PXI cabinet that display, keyboard, controller are integrated is permitted according to the measurement range of tested pressure sensor and maximum Perhaps error selects corresponding standard pressure transducer, and is powered by PXI power supply module for it;Standard pressure transducer access is tested Pipeline where pressure sensor is when selecting standard pressure transducer is that (4~20) mA DC current exports, then straight using PXI It flows current acquisition module and acquires standard pressure transducer output signal;When selection standard pressure transducer is (1~5) V direct current When stream output, then standard pressure transducer output signal is acquired using PXI DC voltage acquisition module;When selection normal pressure passes When sensor is serial communication, portable PXI crate controller acquisition standard pressure transducer output signal is directlyed adopt;In addition, For the difference of tested pressure sensor host computer communication mode, work out pressure in-line calibration software, by controller network interface, RS232/RS422 serial ports is communicated with tested pressure sensor host computer, realizes loine pressure where tested pressure sensor Automatic control while, it is automatic to obtain tested pressure sensor numerical value, since all controls, acquisition function are integrated in miniaturization Portable PXI cabinet in, to realize on-line Fullization of pressure sensor, portable calibrating.
Portable pressure in-line calibration device based on PXI bussing technique of the invention, PXI bussing technique can be by matching Power supply, acquisition, communication and data processing are integrated in the cabinet of a miniaturization by the PXI board for setting different function, realize inspection The automation for determining process changes existing calibrating mode.

Claims (7)

1. a kind of portable pressure in-line calibration device based on PXI bussing technique, it is characterised in that: including portable PXI machine Case, PXI power supply module, PXI DC current acquisition module, PXI DC voltage acquisition module, display, keyboard, controller and Standard pressure transducer;The controller acquires mould with the PXI power supply module, PXI DC current respectively by PXI bus Block, PXI DC voltage acquisition module, display, keyboard are connected, the display, keyboard, controller, PXI power supply module, PXI DC current acquisition module and PXI DC voltage acquisition module are integrated in portable PXI cabinet, the PXI power supply mould Block, PXI DC current acquisition module and PXI DC voltage acquisition module are connected with the standard pressure transducer respectively.
2. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute Portable PXI cabinet is stated equipped with 4 or more PXI slots.
3. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute Controller is stated equipped with network interface and serial ports.
4. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute It states PXI slot and network interface, RS232/RS422 serial ports is provided.
5. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute Stating standard pressure transducer acquisition pressure mode can be tri- kinds of serial ports, DC voltage (1~5) V or (4~20) mA modes.
6. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute The measurement range for stating standard pressure transducer should be greater than or equal to tested pressure sensor measurement range.
7. the portable pressure in-line calibration device based on PXI bussing technique as described in claim 1, it is characterised in that: institute The limits of error absolute value for stating standard pressure transducer is no more than tested pressure sensor limits of error absolute value 1/2。
CN201811499813.4A 2018-12-09 2018-12-09 A kind of portable pressure in-line calibration device based on PXI bussing technique Pending CN109855798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811499813.4A CN109855798A (en) 2018-12-09 2018-12-09 A kind of portable pressure in-line calibration device based on PXI bussing technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811499813.4A CN109855798A (en) 2018-12-09 2018-12-09 A kind of portable pressure in-line calibration device based on PXI bussing technique

Publications (1)

Publication Number Publication Date
CN109855798A true CN109855798A (en) 2019-06-07

Family

ID=66890870

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811499813.4A Pending CN109855798A (en) 2018-12-09 2018-12-09 A kind of portable pressure in-line calibration device based on PXI bussing technique

Country Status (1)

Country Link
CN (1) CN109855798A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110262381A (en) * 2019-07-06 2019-09-20 精华电子(苏州)有限公司 A kind of industrial control unit (ICU)
CN111664993A (en) * 2020-07-16 2020-09-15 毕节市质量技术监督检测所 Automatic calibrating device and method for force measuring equipment
CN112082694A (en) * 2019-06-14 2020-12-15 北京振兴计量测试研究所 Power supply and signal acquisition device for pressure sensor

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5801535A (en) * 1996-11-12 1998-09-01 Granville-Phillips Company Ionization gauge and method of using and calibrating same
US6081121A (en) * 1998-01-21 2000-06-27 Helix Technology Corporation Ionization gauge and method of using and calibrating same
WO2010132941A1 (en) * 2009-05-20 2010-11-25 Chronologic Pty. Ltd. Universal time-based extensions for instrumentation
CN102043407A (en) * 2010-09-15 2011-05-04 苏州凌创电子系统有限公司 Function test device of car engine controller
CN202204626U (en) * 2011-09-09 2012-04-25 中国航天科工集团第三研究院第八三五八研究所 Parameter and friction moment testing device for motor on seeker
CN202562760U (en) * 2012-05-02 2012-11-28 中国神华能源股份有限公司 Vibrating screen on-line diagnosis device
CN103345163A (en) * 2013-07-11 2013-10-09 哈尔滨工业大学 Battery management system performance test platform and testing method based on semi-physical simulation
CN106089213A (en) * 2016-05-06 2016-11-09 同济大学 Shield tunnel simultaneous grouting slurry measured performance parameter system and method
CN106768617A (en) * 2016-12-01 2017-05-31 成都凯天电子股份有限公司 Separately excited type vibration cylinder pressure transducer performance test methods
CN107525521A (en) * 2017-09-07 2017-12-29 国营芜湖机械厂 A kind of atmosphere data exciting bank
CN107769836A (en) * 2017-09-13 2018-03-06 长光卫星技术有限公司 Satellite General automatic test platform and its data interactive method
CN107976915A (en) * 2017-11-24 2018-05-01 长光卫星技术有限公司 A kind of small-sized unmanned plane semi-physical system and emulation mode
CN207851547U (en) * 2017-11-03 2018-09-11 北京航天万源科技有限公司 A kind of distribution control device based on network communication

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5801535A (en) * 1996-11-12 1998-09-01 Granville-Phillips Company Ionization gauge and method of using and calibrating same
US6081121A (en) * 1998-01-21 2000-06-27 Helix Technology Corporation Ionization gauge and method of using and calibrating same
WO2010132941A1 (en) * 2009-05-20 2010-11-25 Chronologic Pty. Ltd. Universal time-based extensions for instrumentation
CN102043407A (en) * 2010-09-15 2011-05-04 苏州凌创电子系统有限公司 Function test device of car engine controller
CN202204626U (en) * 2011-09-09 2012-04-25 中国航天科工集团第三研究院第八三五八研究所 Parameter and friction moment testing device for motor on seeker
CN202562760U (en) * 2012-05-02 2012-11-28 中国神华能源股份有限公司 Vibrating screen on-line diagnosis device
CN103345163A (en) * 2013-07-11 2013-10-09 哈尔滨工业大学 Battery management system performance test platform and testing method based on semi-physical simulation
CN106089213A (en) * 2016-05-06 2016-11-09 同济大学 Shield tunnel simultaneous grouting slurry measured performance parameter system and method
CN106768617A (en) * 2016-12-01 2017-05-31 成都凯天电子股份有限公司 Separately excited type vibration cylinder pressure transducer performance test methods
CN107525521A (en) * 2017-09-07 2017-12-29 国营芜湖机械厂 A kind of atmosphere data exciting bank
CN107769836A (en) * 2017-09-13 2018-03-06 长光卫星技术有限公司 Satellite General automatic test platform and its data interactive method
CN207851547U (en) * 2017-11-03 2018-09-11 北京航天万源科技有限公司 A kind of distribution control device based on network communication
CN107976915A (en) * 2017-11-24 2018-05-01 长光卫星技术有限公司 A kind of small-sized unmanned plane semi-physical system and emulation mode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112082694A (en) * 2019-06-14 2020-12-15 北京振兴计量测试研究所 Power supply and signal acquisition device for pressure sensor
CN110262381A (en) * 2019-07-06 2019-09-20 精华电子(苏州)有限公司 A kind of industrial control unit (ICU)
CN111664993A (en) * 2020-07-16 2020-09-15 毕节市质量技术监督检测所 Automatic calibrating device and method for force measuring equipment

Similar Documents

Publication Publication Date Title
CN109855798A (en) A kind of portable pressure in-line calibration device based on PXI bussing technique
CN102635894B (en) Balance controlling method of heating system and diagnosis measuring device
CN107478382B (en) Automatic detection device and detection method for pressure instrument
CN202442758U (en) High-precision verification device for water meter calibration
CN103487119A (en) Full-automatic error correction checking device for electronic water meter and method thereof
CN103175588A (en) Full-automatic series verification calibrating device with pressure-resistant water meter
CN108151835A (en) A kind of rating method of the pumping plant information intelligent monitoring terminal based on multi-parameter detection
CN202433063U (en) Device for verifying and calibrating water meter
CN106908121A (en) A kind of flow apparatus reclaimed water discharge stability detection method and detecting system
CN109634247A (en) A kind of lime stone slurry density hard measurement system and method
CN202393466U (en) Device for calibrating and testing full-automatic serial belt pressure-resistant water meters
CN1952624A (en) Self-calibration control system of water flow standard apparatus
CN109322819A (en) A kind of online efficiency test pumping class system and energy consumption analysis system and method
CN108153266A (en) A kind of rating method of the pumping plant information intelligent monitoring terminal based on power detection
CN2697607Y (en) Correction platform with image detector
CN105953870A (en) Automatic water meter test board
CN208420584U (en) A kind of transmission-type visual iron spectral sensor online
CN202471192U (en) Rapid water meter calibrating device
CN206074553U (en) A kind of gas sensor computer testing system
CN206710077U (en) A kind of system for measuring water seal arrangement dynamic trap seal loss
CN103292872B (en) A kind of air flow meter performance detecting system
CN204758040U (en) Be used for gas flow measuring intelligent monitoring device
CN104216346A (en) Electric automatic control system for full-automatic supersonic nozzle high-flow standard devices
CN203479372U (en) Full-automatic error correction checking device for electronic water meters
CN203249679U (en) Oil tank truck capacity automatic detection device

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20190607