Turbine Rotor Sensor

Turbine rotor blade and motion sensor for measuring speed of a substance.

A turbine rotor sensor is used to measure the speed of a substance passing through the inside of the turbine. A turbine consists of a series of blades mounted around a rotatable shaft which runs parallel and centrally within a tube or pipe. The rotor blades are angled enough to generate sufficient rotation and performance whilst keeping any interference with the measured quantity to a minimum.

There a few ways to measure the rotation speed of the turbine; magnets are fitted to the blades and a stationary magnetic pickup sensor mounted close to the outer circumference of the turbine counts each time a blade passes; a photoelectric cell is used instead of a magnetic pickup; or a gearing mechanism linked to a rotational sensor is attached directly to the turbines rotating shaft.

Each of the above sensing methods will generate a counting signal, which when combined with the time measurement will produce a rotational speed signal which is proportional to the speed of the substance moving through the turbine.

Flow measurement products

Sensor Technology Related Terms

More pages related to sensor technology technical terms.