The new sensors from the SGR510/520 series by Sensor Technology use a full four-element strain gauge bridge design and permit to accurately measure and record sudden peaks in torque load. The new design also compensates for any extraneous forces, such as bending moments, inadvertently applied to the sensor, improves sensitivity and has a wide temperature tolerance.
An ultra-miniature microcontroller measures the differential values in each strain gauge and transmits them back to the stator digitally. State of the art strain gauge signal conditioning techniques are then used to convert raw live data into precise torque value measurements.
The TorqSense SGR510/520 eliminates the sort of noise pickup and signal corruption associated with slip ring and other analogue methods of transferring torque data from rotor to stator. External noise pickup into the wiring is virtually eliminated due to the short distance between the strain gauges and the rotor’s measuring circuits. Further, multipoint calibration reduces any linearity errors within the sensor.
The new sensor incorporates an optional adjustable moving average filter, power supply range from 12VDC to 32VDC, user configurable analogue output voltages, a choice of RS232 communications, USB interface, CAN bus interface, external Ethernet gateway, TorqView software and LabView virtual instruments.