Pressure pulse testing machine

Abstract

The invention provides a pressure pulse testing machine, and aims to solve the problem of inaccurate control of measuring parameters and waveforms due to pressure difference existing among each pressurizing point in the conventional pressure pulse technology although air pressure serving as a constantly-existing natural product can be used for effectively detecting a pressure sensor. Technical key points of the invention are that an air storing cabinet comprises a primary pressure cavity and a secondary pressure cavity; the primary pressure cavity is connected with an air pump; the upper part of the secondary pressure cavity is provided with an elastic connector, an air inlet servo valve and a standard pressure cavity in sequence; the side wall of the standard pressure cavity is provided with an exhaust electromagnetic valve group and an adjusting electromagnetic valve; pressurizing holes are uniformly distributed in the upper surface of the standard pressure cavity; a pressure sensor of a standard sensor with a waveform feedback measuring function is arranged in at least one of the pressurizing holes. The pressure pulse testing machine has the positive effects that fatigue test can be performed on a tested object under the condition that the tested object is not damaged. The pressure pulse testing machine further has the characteristics of high control degree, low cost, stability, reliability, high practicability and the like.

Description

technical field [0001] The invention relates to the technical field of sensor detection, in particular to an air pressure pulsation testing machine for detecting pressure sensors. Background technique [0002] At present, the gas pulse test of the pressure sensor at this stage mostly uses the servo valve to follow the waveform to change the angle to realize the waveform control. However, because it is difficult to achieve rapid waveform changes through the air pressure control of the servo valve, it is impossible to achieve the ideal realization of some waveforms. [0003] As a natural product that exists from time to time, air pressure can effectively detect the measured object. However, the pressure points of the existing air pressure pulsation technology are generally connected in series, and there is a pressure difference between each pressure point. When testing, it is easy to have inaccurate measurement parameters and inaccurate waveform control. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] As a natural product that exists from time to time, air pressure can effectively detect the measured object. However, the pressure points of the existing air pressure pulsation technology are generally connected in series, and there is a pressure difference between each pressure point. When testing, it is easy to have inaccurate measurement parameters and inaccurate waveform control.

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