TORQUE SENSOR FOR ELASTIC COUPLING

PROBLEM TO BE SOLVED: To provide a torque sensor for an elastic coupling capable of a pulse- type display for easily displaying the detection displacement itself by constituting a displacement detection transmitting means on the rotating body side so as to be easily fitted to the outside of the coupling with regard to the elastic coupling of a Hook's characteristic, and constituting the above displacement detection transmitting means with low-cost equipment and materials. SOLUTION: A torque sensor is made up of a displacement detection transmitting means 26 and an arithmetic display part 27; and the detection signal detected by the displacement detection transmitting means 26 is input into the arithmetic display part 27 to arithmetically display the torque of the rotational system and the power of the transmitting shaft, and the displacement detection transmitting means 26 is made up of displacement graduations 15, displacement-indicating lines 16, photosensors 17, 18 for reading the graduations, and a cylindrical lens 19 for magnifying the displacement graduations 15.