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Pressure gauge calibrating device and calibrating method

A technology of verification device and pressure gauge, which is applied in the direction of measuring device, measuring fluid pressure, instruments, etc., can solve the problems of low verification efficiency and inability to guarantee verification accuracy.

Inactive Publication Date: 2020-10-23
BEIJING ZHENXING METROLOGY & TEST INST
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Problems solved by technology

[0004] The invention provides a pressure gauge verification device and verification method, which can solve the technical problems in the prior art that the verification efficiency is relatively low and the verification accuracy cannot be guaranteed

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  • Pressure gauge calibrating device and calibrating method

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention relates to the technical field of mechanical metering, and discloses a pressure gauge calibrating device and calibrating method. The device comprises a pressure generator, an image acquisition unit and a controller, wherein the pressure generator is used for generating and outputting pressure to a to-be-calibrated pressure gauge; the image acquisition unit is used for acquiring an image of the to-be-calibrated pressure gauge; the controller is connected with the pressure generator and the image acquisition unit and used for controlling the pressure generator to sequentially generate and output a plurality of preset pressures to the to-be-calibrated pressure gauge according to the range of the to-be-calibrated pressure gauge, determining the reading of the to-be-calibrated pressure gauge according to the acquired image of the to-be-calibrated pressure gauge, and checking whether the to-be-calibrated pressure gauge is qualified or not based on the determined reading and a plurality of predetermined pressure standard measurement values. Therefore, full-automatic calibration of the pressure gauge can be realized without manual participation, and working efficiency and calibration precision are greatly improved.

Description

technical field [0001] The invention relates to the technical field of mechanical measurement, in particular to a pressure gauge verification device and a verification method. Background technique [0002] Due to its low price and simple use, pressure gauges have been widely used in all aspects of industrial production. In order to ensure the accuracy and reliability of its value transmission, according to the requirements of national and industry regulations, the pressure gauge must be calibrated regularly. [0003] At present, manual verification is the main method of domestic pressure gauge verification at this stage. The pressure standard device generates standard pressure through manual operation. The verification personnel read the instrument by visual inspection and are responsible for recording and processing the verification results. The verification technology is relatively new. It is said that it is relatively backward, and the measurement status of the current p...

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Application Information

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IPC IPC(8): G01L27/00
CPCG01L27/00
Inventor 苏一鸣张琦杨水旺
Owner BEIJING ZHENXING METROLOGY & TEST INST
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