High-precision intelligent gas pressure source

Abstract

The invention discloses a high-precision intelligent gas pressure source, and belongs to the field of static pressure measurement and calibration. A micro pneumatic pump, a gas capacitor A, a pressureswitch A and a proportional valve jointly form a driving source part of the pneumatic valve, and the driving source part is used for providing a driving source for the pneumatic valve of a positive pressure output passage; An electric high-pressure pump, a filter, a gas capacitor B, an electromagnetic valve C, a gas capacitor C, a pneumatic valve, a pressure switch B, a gas capacitor D, a pressure sensor, an electromagnetic valve B and the output end jointly form the positive pressure output passage of the whole high-precision intelligent gas pressure source. A negative pressure sensor, an electromagnetic valve A, a vacuum pump, a pressure switch C, the gas capacitor D and the output end jointly form a negative pressure output passage of the whole high-precision intelligent gas pressure source. The positive pressure gas source and the negative pressure are both provided with the gas capacitors, and the gas supply efficiency and the output stability of the gas source can be improved. The invention aims to provide the high-precision intelligent gas pressure source, and provides an intelligent, quick, portable and automatic gas pressure source with high output precision for field pressure calibration.

Description

technical field [0001] The invention relates to an intelligent pressure source, in particular to a high-precision intelligent gas pressure source, which belongs to the technical field of pressure calibration. Background technique [0002] Usually, in the on-site test and calibration of gas pressure parameters, the calibration device or test equipment used needs an external gas source system. When the negative pressure parameters are calibrated and tested, a vacuum pump is usually used as the input of the negative pressure gas source. In traditional test calibration, positive pressure and negative pressure detection are often done separately, requiring different calibration instruments, and each uses a set of gas source systems, and some pressure test calibration equipment covers the measurement of positive pressure and negative pressure. There is usually an interface for connecting the air pressure source, and the air source needs to be replaced when the positive pressure a...

AI Technical Summary

Problems solved by technology

[0003] In view of the actual needs of on-site pressure calibration, in order to solve the problem that the pressure source in the on-site calibration of gas pressure parameters is large, not portable, and cannot intelligently, quickly and accurately provide any pressure specified by the user, the purpose of the present invention is to provide a high-precision intelligent gas pressure source , to provide an intelligent, fast, portable, automatic, and high output gas pressure source for on-site pressure calibration

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