Product Description

Model 1811 rotating torque transducer (RTT) is developed to measure rotary torque up to 300,000 Newton-meters (300 kNm). The 1811 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).

Taking advantages of the electromagnetic induction principle, model 1811 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 1811 RTT can be of minimum 5 Nm and of maximum 300 kNm 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 1811 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 1811 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 or engines, while its output end will be connected through a cardanic shaft to the input end of its load such as a water pump.

Additional Information