Non-contact torque sensor

Futek Advanced Sensor Technology has introduced an internally amplified rotary torque sensor. The sensor is a non-contact (slip-ring-free) rotary torque sensor, using inductance for power and output signals, and has a compact design and supports rotational speeds of up to 7000 rpm.

The sensor is available in a wide capacity ranging from 1 to 1000 Nm with a ±5 VDC output. The torque sensor is built with an internal shunt to simulate 5 VDC and 11-26 VDC excitation. The TRS605 also comes with an optical encoder with 36 pulses per revolution and has a leading and trailing pulse to determine rotational direction. Other specifications include nonlinearity to 0.2%, CE compliant, feathered keyways to DIN 6885 standards and bonded foil strain gauge technology.

This version with shaft ends and mounting support can be used as a functional check on tilt procedures or rotation monitoring. With the option of changeable mounting positions, applications for left- and right-hand torque readings as well as the static and dynamic conditions are possible. The reliable measurement of constant and variable torques allows this sensor to be used in quality assurance testing of motors or gear drives. Other common rotary torque sensor applications include engine or drive train testing, hinge or crank life cycle testing, roll forming process control and test stands.

Due to the inductive, non-contact transfer of the supply voltage and the optical, non-contact transmission of the measuring signal, the sensor can be used wherever low-wear and maintenance-free operation, high speeds or continuous running are required.