Rotary sliding disc type pressure electronic scanning valve

Abstract

The invention discloses a rotary sliding disc type pressure electronic scanning valve. The rotary sliding disc type pressure electronic scanning valve comprises an installation support internally provided with a hollow cavity, a rotary driving piece arranged in the hollow cavity, a rotary disc driven by the rotary driving piece to be switched between a first position state and a second position state in a rotary mode, a front end cover wrapping the rotary disc, and a plurality of pressure sensor assemblies annularly embedded in the installation support. A plurality of first air guide needle tubes and second air guide needle tubes are arranged on the front end cover; first sets of channels communicating with the pressure sensor assemblies in a one-to-one correspondence mode are arranged inthe installation support, and second sets of channels for communicating the first air guide needle tubes with the first sets of channels in a one-to-one correspondence mode and third sets of channelsfor communicating all the first sets of channels and communicating with the second air guide needle tubes are arranged in the rotary disc. Thus, automatic switching between a pressure detection stateand a sensor calibration state can be realized, online automatic calibration is realized, and the accuracy and reliability of pressure detection are greatly improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of pressure detection, in particular to a rotary sliding disc pressure electronic scanning valve. 【Background technique】 [0002] The pressure scanning valve is a kind of multi-channel pressure scanning measurement equipment. It is an intelligent sensing device used to realize real-time measurement of multi-channel pressure signals. It is widely used in wind tunnel, impeller, engine, and propulsion track tests. At present, the commonly used pressure scanning valves or similar products are mostly 16-channel pressure data measurement, and there are generally disadvantages such as large product size, many accessories, inconvenient installation, and slow scanning speed. It is urgent to develop a highly integrated, miniaturized, scanning valve. Fast and manometrically accurate pressure scanning measurement device. [0003] In the prior art, CN201920362403.9 is a multi-channel pressure scanning measurement and ...

AI Technical Summary

Problems solved by technology

At present, the commonly used pressure scanning valves or similar products are mostly 16-channel pressure data measurement, and there are generally disadvantages such as large product size, many accessories, inconvenient installation, and slow scanning speed. It is urgent to develop a highly integrated, miniaturized, scanning Fast and manometrically accurate pressure scanning measurement device

[0003] In the prior art, CN201920362403.9 is a multi-channel pressure scanning measurement and control equipment. Although it realizes the measurement of pressure data of 64 channels, it cannot conduct or block the pressure measurement channels according to the measurement requirements, especially in some measurement accuracy requirements. high occasion

Therefore, the pressure sensor needs to be calibrated many times during the high-precision measurement process. This patented technical method cannot calibrate the sensor online, and it is impossible to draw a reliable conclusion on whether the sensor detection result is accurate; but no matter what method is used to calibrate the sensor , all need to input a reference pressure source for verification and calibration, but the pressure scanning measurement and control equipment in the prior art does not realize the switch between the sensor calibration state and the test state, and cannot realize online automatic calibration

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