Mounting structure of miniature high-frequency pressure sensor and mounting method

Abstract

The invention provides a mounting structure of a miniature high-frequency pressure sensor and a mounting method. The mounting structure comprises a first fixing part, a second fixing part and a connecting rod; the first fixing part and the second fixing part are detachably connected together; the first fixing part and the second fixing part are provided with through holes for the connecting rod to pass through and be positioned; a sensor pressure measuring head mounting hole is formed in the first end of the connecting rod; a positioning pin mounting groove is formed in the side face, close to the first end of the connecting rod, of the connecting rod; the positioning pin mounting groove communicates with the sensor pressure measuring head mounting hole; a positioning pin is arranged in the positioning pin mounting groove; a sensor pressure measuring head extends into the sensor pressure measuring head mounting hole from the first end of the connecting rod; the tail end of the sensor pressure measuring head abuts against the first end of the positioning pin; and the second end of the positioning pin abuts against the side wall of the corresponding positioning pin mounting groove. According to the mounting structure, the position of a pressure measuring point can be accurately positioned, reliable sealing performance is ensured, and the connecting rod and the positioning pin can reasonably stabilize a sensor.

Description

technical field [0001] The invention relates to the field of pressure sensors, and more specifically, relates to an installation structure and an installation method of a miniature high-frequency pressure sensor. Background technique [0002] In liquid rocket engines and scramjet engines, pressure is a very important physical parameter. By analyzing the internal pressure oscillations of important components such as combustion chambers, pipelines, and injectors, a better design of the engine can be guided, so it is more accurate to obtain , High-frequency pressure data has attracted much attention. [0003] Conventional pressure sensors and larger high-frequency pressure sensors on the market can be easily installed and fixed with threads. However, for high-frequency pressure measurement inside small parts, miniature high-frequency pressure sensors are required. The miniature high-frequency pressure sensor consists of a miniature sensor pressure measuring head, a power line...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no better installation method for the miniature high-frequency pressure sensor. How to reliably install the miniature high-frequency pressure sensor has always troubled users. Therefore, this type of sensor needs a safe and stable installation structure and installation method.

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