This paper describes a knock sensor signal conditioning circuit, which is appropriate for monolithic implementation, thus providing a low-cost option for such an important part of electronic control ...

#Piezo Knock Sensor A piezo disc works when an electric field (voltage) is applied across ceramic material in the disc, causing it to change shape and therefore make a sound (a click). The disc also ...

A simple set-up for quick and purely electrical QC testing of knock sensors is described in this paper. The main goal is to measure the "impedance" frequency response function of the sensors. The ...