Solution was proposed in which PVDF piezoelectric film was used to detect the percussion force of powder grains to projectile base in launching environment, and the feasibility was discussed.
提出了利用PVDF压电薄膜测量火炮发射过程中火药颗粒对弹底撞击应力方案，论述了该方案的可行性。
The work principle of the PVDF piezoelectric-film sensor was presented, and the design of its signal processing circuit was also discussed.
介绍了聚偏氟乙烯(PVDF)压电薄膜传感器的工作原理，并设计了相应的信号处理电路。
Theoretical results show that the piezoelectric sensing sensitivity of PVDF film is proportional to film thickness and inversely proportional to the elasticity constant S.
理论分析表明PVDF薄膜的声学灵敏度与膜的厚度和膜的弹性刚性系数成正比。
Theoretical results show that the piezoelectric sensing sensitivity of PVDF film is proportional to film thickness and inversely proportional to the elasticity constant S.
理论分析表明PVDF薄膜的声学灵敏度与膜的厚度和膜的弹性刚性系数成正比。
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