Sensor for measuring the derivative of acceleration component

In recent years, researches indicate that the derivative of acceleration (jerk, m/s³), which is directly proportional to the force changing rate, has close relation with the physical destruction process and can be applied to many fields of modern development. The precise measurement of the jerk and research on its sensor has gained more and more attention in engineering fields. The paper introduces the principle, technical performance, calibration result and actual earthquake wave measurement results for comparision of the jerk sensor, and the experimental results prove that the sensor has good performances. The sensor has been applied in the structural earthquake resistance experiment and ideal results are obtained.