Knock sensors create a voltage signal based on the vibrations caused by detonation. The computer uses this signal to retard timing when spark knock occurs.
An automated data acquisition system continuously monitors sensor output to ensure it responds with appropriate voltage at the specified frequency rate
The Sensor body is precision machined to tune the resonant frequency to the engine knock frequency
All units are 100% tested using an accelerometer vibration test to ensure trouble-free operation
Designed to respond to knock frequencies up to 1000Hz and shifts in engine knock frequency, making it more effective over a broad range of vehicle conditions
The Piezoelectric disc is the heart of the sensor. It is a sintered ferroelectric ceramic disc precision ground to tight physical tolerance
Primary thermistor wire leads resistance welded to connector terminals to ensure a reliable electrical connection in an environment of high vibration and changing temperature