A leadless pressure sensor structure

Abstract

The invention belongs to a pressure measurement technology in a high temperature vibrating environment, and relates to a high temperature and high strength resistance pressure transducer structure without a lead. The pressure transducer structure without the lead comprises a socket (1), an end cover (2), welding studs (3), a support (4), a circuit plate (5), a support (6) and a filler neck (7), wherein the socket (1), the end cover (2), the support (4) and the filler neck (7) are welded by laser and fastened by screws so as to form a sensor body structure, and the circuit is fixed on the support through the screws and the support (6). According to the pressure transducer structure provided by the invention, a wire among all circuit boards and an external wire of the circuit board are replaced by the welding studs (3); meanwhile, the connecting screws are fastened by high temperature glue, therefore the structure stability and reliability can be improved effectively, the long-term pressure measurement can be carried out in a high temperature vibrating environment, and the measurement results are true and exact.

Description

technical field [0001] The invention belongs to pressure measurement technology under high-temperature vibration environment conditions, and relates to a small-sized high-temperature and high-strength pressure sensor structure integrated without lead wires. Background technique [0002] In order to measure the medium pressure in a high-temperature environment more accurately, the working environment of the pressure sensor needs to gradually penetrate into the harsh high-temperature environment, accompanied by strong vibration. Usually the sensor cannot continue to work at a high temperature above 200°C, and due to the softening of the material at high temperature, the wires, welding and other links will be damaged after vibration, and effective measurement cannot be realized. [0003] Usually, the pressure-inducing tube is used to guide the high-temperature medium through a certain heat dissipation structure to the environment that the ordinary sensor can withstand for testi...

AI Technical Summary

Problems solved by technology

However, the difference in the temperature field will cause errors in the pressure calculation, and the accuracy of the pressure after the calculation cannot be guaranteed.

Moreover, the vibration environment will cause fluctuations in the pressure medium, and the pressure fluctuations will be introduced into the pressure guiding tube, and the intensity and frequency are different from the actual pressure medium environment to be measured, resulting in the pressure collected by the sensor not being the real-time real value.

The final measurement effect is difficult to meet the requirements

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