GONG Zhan-jiang, LI Qi-dong, GUI Yong-lei. Research and fabrication of pressure conduct mode dynamic pressure sensor[J]. 2016, 35(10): 103-104+108. DOI: 10.13873/J.1000-9787(2016)10-0103-02.
A sensor detecting dynamic pressure signal by means of pressure conduct mode is introduced
which needs to conduct dynamic working pressure signal with pressure conduct tube since restriction of high temperature of the measured medium and small size of measured environment space
an impedance matching structure is designed. In order to ensure the immunity of the sensor frequency response characteristics during dynamic pressure transfer of pressure conduct tube
which reduces the influence on sensor frequency response imposed by pressure conduct tube and ensures frequency response characteristics of dynamic pressure sensor. The detection unit of sensor includes a pressure conduct tube
a sensitive element
a circuit component and an impedance matching tube. Test results show that the dynamic pr
essure sensor has frequency response range of 31. 5 Hz
8 k Hz.
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