Detonation Sensor

A detonation sensor, also known as a knock sensor, is a component of the engine electrical system in nonaircraft engines. It belongs to the supply class of Engine Electrical System Components and falls under the supply group of Engine Accessories.

The main function of a detonation sensor is to detect engine knock or detonation. Engine knock occurs when the air-fuel mixture in the combustion chamber ignites spontaneously and unevenly, causing a knocking or pinging sound. This can lead to engine damage if not addressed.

The detonation sensor is typically mounted on the engine block or cylinder head and is connected to the engine control unit (ECU). It works by detecting the vibrations caused by engine knock and sending a signal to the ECU. The ECU then adjusts the ignition timing and fuel mixture to prevent further knock and protect the engine.

In summary, a detonation sensor is an important component of the engine electrical system in nonaircraft engines. Its role is to detect engine knock and provide feedback to the ECU for proper engine management and protection.