What does the output speed sensor do?

An output speed sensor is a device that measures and records the speed of rotation of a rotating object. It is typically used in automotive applications to monitor the speed of components such as wheels, driveshafts, and engines. The sensor uses a variety of technologies to measure speed, including magnetic, optical, and piezoelectric methods. The sensor's output signal is typically in the form of an electrical signal, which can be processed by an electronic control unit (ECU) to provide feedback on the speed of the rotating object.