Electromagnetic pulse protection of piezoelectric vibration acceleration sensor

Abstract

Piezoelectric vibration acceleration sensor is widely used in our life. If there is a big electromagnetic pulse in the environment, the electromagnetic pulse will be coupled into the circuits through power cords and data cords. The electromagnetic pulse protection circuits of power cords and data cords are researched in this paper. The piezoresistor and transient suppression tube are used as transient components in the protection circuits. Through simulating, the optimized protection circuit is found. The method of group comparison is proposed in this paper. The simulation and experimental results show that the protection circuits proposed in this paper can protect the sensor very well.

KEYWORDS:

• Piezoelectric vibration acceleration sensor
• electromagnetic pulse
• protection circuit
• transient component
• power cord

Funding

This work was financially supported by the Natural Science Foundation of China(61473161), and the Beijing Postgraduate Joint Training Base Project(71C1311016, 71D1311007), Teaching and Researching Activity Project(5029924607).