The circuit of piezoelectric accelerator being used in impact test

Published:2011/8/23 22:12:00 Author:Borg | Keyword: piezoelectric accelerator, impact test | From:SeekIC

In the figure, GA1 sensor is a plastic piezoelectric accelerating sensor which is made of PVDF and other materials. It can be used in the impact test device when it is combined with the following circuit. The circuit consists of the proportion amplifier, voltage comparator and LEV converter. When the impact reaches certain value, the comparator A2 is outputting a switch volume signal, after the single steady trigger composed of 555 is driven by triode BG, the LED light is glowing, and the buzzer is driven.



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