Voltage source remote calibration system and calibration method

A remote calibration and voltage source technology, applied in the direction of measuring current/voltage, measuring electrical variables, measuring devices, etc., can solve problems such as many precautions, cumbersome operation process, and low efficiency, so as to shorten calibration time, improve calibration efficiency, The effect of reducing labor costs

Active Publication Date: 2021-07-23
HEBEI UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The traditional manual calibration is inefficient, with many precautions and cumbersome operation process. The technical level and work experience of the calibration personnel have a great influence on the measurement results.

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  • Voltage source remote calibration system and calibration method
  • Voltage source remote calibration system and calibration method

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Embodiment Construction

[0026] The voltage source remote calibration system and calibration method provided by the present invention are realized based on the remote value transfer and traceability technology of the Internet of Things. The present invention designs a high-precision voltage-frequency conversion module, uses the module to convert the output voltages of the standard voltage source and the voltage source to be tested into corresponding frequency signals, and then completes the remote control of the voltage source based on the GPS common-view method and related algorithms. The design of the calibration system realizes the remote calibration of the voltage source in the true sense and improves the calibration efficiency.

[0027] The system of the present invention is composed of hardware and software. In the invention, each hardware is connected to a computer through a standard interface, and the system uses LabVIEW software and related instrument drivers to compile an automatic calibrati...

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Abstract

The invention provides a voltage source remote calibration system and calibration method. The voltage source remote calibration system comprises a field control computer and a remote control computer. The field control computer is connected with a to-be-detected meter and a first time interval counter; the to-be-detected meter is a direct-current voltage source; and the to-be-detected meter is connected with the first time interval counter through a first voltage frequency conversion module, and the first time interval counter is also connected with a first GPS common-view receiver. The remote control computer is connected with an etalon and a second time interval counter; the etalon is connected with the second time interval counter through a second voltage frequency conversion module, and the second time interval counter is also connected with a second GPS common-view receiver; and data transmission is carried out between the field control computer and the remote control computer through a DataSocket communication technology. Compared with a traditional calibration mode, the remote calibration system has the advantages that the calibration time is greatly shortened, the labor cost is reduced, and the calibration efficiency is improved.

Description

technical field [0001] The invention relates to the field of electrical measurement calibration, in particular to a voltage source remote calibration system and a calibration method. Background technique [0002] Measurement is an activity to realize the unity of units and ensure the accuracy and reliability of measurement values, which is related to the national economy and people's livelihood. The value transfer and traceability of measuring instruments are realized through metrological verification and calibration. From a technical point of view, verification and calibration are comparative methods. It is necessary to compare the measurement standard with the tested device under the specified measurement environment. Most of them need to be carried out offline. When verifying or calibrating, the working measuring instruments are removed and sent to the corresponding technical institution for static or steady-state testing in a specified experimental environment. The disa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00G01R15/00G01R19/00
CPCG01R35/007G01R15/00G01R19/00
Inventor 方立德马鑫月段思涵李宜明韦子辉
Owner HEBEI UNIVERSITY
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