Knock sensors are devices used in internal combustion engines to detect engine knock or detonation. The knock sensor detects vibrations and sends a signal to the engine control module (ECM), to ...

The engine’s knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. Though full-blown knocking and pinging are audible to the human ear, the ...

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 ...