Design of Piezoelectric Acceleration Sensor for Automobile Applications

In this study, piezoelectric based compressive type accelerometer has been de-signed by using PZT-5A ceramics with bellewasher spring. FEA analysis were carried out COMSOL. According to COMSOL simulation, reso-nance frequency is nearly 42500 Hz. Sensitivity of the designed sensors measured and compared each other. Frequency spectrum was between 100Hz-10 kHz. The effects piezodisk thickness, stiffness spring seismic mass on sensitivity sensor investigated. Voltage output in-creasing from 4.1 mV/g 12.7 while raised 3 gr 10 gr. Linearity depending dis-torted above 5.5 kHz like commercial accelerometer. addition, real-time tests performed a calibrated internal combustion engine drivetrain. Vibration profiles randomly. results obtained here, it observed that all peaks matched coefficient about 1.3.