The diaphragm pressure sensor is simple and easy to manufacture. In order to apply it to test the pressure of flow fields such as shock waves, the design method of the diaphragm pressure sensor has been improved. Through material selection, the sensitivity and dynamic characteristics of the sensor have been improved. By optimizing the sensor structure, the surface environment of the sensor-sensitive diaphragm is improved to reduce interference with the pressure field. Theoretical calculation and simulation analysis were conducted on the strain distribution, dynamic characteristics, and fatigue life of the sensor. The results showed that the strain distribution of the diaphragm pressure sensor conforms to the theoretical model. It has a high strain response, and the fatigue life meets the requirements of engineering applications.
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Li et al. (2024) studied this question.
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