Acceleration sensor impact test method and apparatus

摘要

An impact test apparatus for testing the impact resistance of an acceleration sensor having a cantilevered sensor tip containing a diaphragm comprises a rod-like push needle for depressing a free end of the cantilevered sensor tip, a DC motor for driving the push needle, a controller for controlling the DC motor. The test apparatus is arranged in a process of assembling acceleration sensors wherein the push needle is displaced to depress the free end of the cantilevered sensor tip and a voltage output from the acceleration sensor in response to stresses caused by the depression at the diaphragm is detected by a voltmeter.