A tachometer is a measuring device with the purpose of measuring the speed of a circular plate or disk, or sometimes of a shaft. The word comes from the Greek words meaning speed (tachos) and measure (metron).
A tachometer is typically used in measurement of engine speed in an automotive engine, but was originally used to describe centrifugal force. The German engineer Dietrich Uhlhorn is believed to be the inventor of the tachometer. His interest was in measuring the spee...
Processing. Please wait...
