Product Description

Model 1865 rotating torque transducer (RTT) is developed to measure small rotary torque down to 5 milli Newton-meters (5 milli-Nm). The 1865 RTT is composed of a rotor, a stator and two mechanical bearings in between the rotor and the stator. The rotor acts as a shaft to measure torque, while the stator supplies electric power to the rotor and transmits torque signal from the rotor to a SSC (sensor signal conditioner).

Making advantages of the electromagnetic induction principle, model 1865 has no electric brush between the rotor and the stator for the power and signal transmission. Therefore, this RTT is an ideal device for applications which require long term durability and a few of maintenance of the mechanical bearings.

The measuring torque capacities of 1865 RTT can be of minimum 5 milli-Nm and of maximum 2 Nm with accuracy of 0.5%fs. Its output signal is ±6Vdc square wave frequencies, ranging from 5 kHz to 15 kHz for each of the torque capacities. Upon request, this 1865 RTT can be integrated with a speed sensor to measure rotor’s speed. The rotor speed is measured by means of a tachometric wheel of the speed sensor at a rate of 60 pulses per revolution.

This RTT is designed for bidirectional (both clockwise and counterclockwise) torque measurement. Nevertheless, it can be also used for unidirectional (either clockwise or counterclockwise) torque measurement as well.

When 1865 RTT is installed in torque measuring systems, the input end of its rotor will be connected via a coupling to the output end of a gear box of motors, while its output end will be connected through a coupling to the input end of its load. Thanks to its ability to precisely measure very small rotary torque, one of its applications of 1865 RTT is to indirectly measure viscosity coefficient of viscose.

Additional Information