侵彻引信压阻传感器的信号调理技术

侵彻过程产生的高频振动信号会引起压阻传感器测量机构的谐振效应，从而导致传感器信号的零位偏移，造成传感器信号失真，严重影响了侵彻引信计层起爆控制功能的炸点精确度。为了消除侵彻过程中传感器信号的零位漂移问题，本文针对压阻传感器的侵彻环境，设计了一种接口信号调理电路，该电路可以在实现传感器信号调理功能的同时，实时校正传感器的零位偏移，确保了后端电路的信号完整性与实时性。通过建模仿真与打靶数据半实物仿真的测试，该信号调理电路可以有效解决传感器信号的零位漂移问题。

Piezoresistive sensor signal conditioning technique for penetration fuse

Penetration process generates mechanical vibrations, and some frequencies of these mechanical vibrations are close to the resonance frequency of the piezoresistive sensor, which will cause the elements out of control at resonance and eventually cause gage breakdown. A signal conditioning interface circuit is introduced toward the application of PR sensor in penetration circumstance. The interface circuit realizes signal process properly, and zero-output and zero-shift are adjusted in real time accordingly, which guarantees the signal integrity and real-time processing. Circuit modeling simulation and semi-physical simulation demonstrate the zero-shift problem can be solved properly by this circuit.