Cost-efficient, reliable and maintenance-free measurement

The measurement specialists at Burster have developed an inexpensive torque sensor with inductive power supply that is also insensitive to EMC interference thanks to optical data transmission.

The type 8675 sensor consists of a rotor flange with a DIN hole pattern and a stator. This supplies the evaluation electronics for the strain gauge in the rotor with energy, receives the measurement data digitized in the rotor via IR LEDs without contact and can transmit torques even when stationary. This eliminates the need for slip rings and bearings that are prone to wear and the sensor is maintenance-free.

The measuring range is 0 to 100 Nm or 0 to 5000 Nm, depending on the version. With an accuracy of 0.2% or 0.1% (optional), the sensor is optimized for the vast majority of applications in mechanical or plant engineering, as these can often do without higher precision, but not without reliability, a long service life and freedom from maintenance. Typical applications include quality monitoring of electric motors and gears, test bench construction or research and development.

Practical sensor for many applications

The extremely compact sensor solution can be easily integrated even in tight spaces. The optical IR transmission also offers an additional benefit for international use: unlike radio transmission, no complex approval procedures are required for different markets. This reduces costs and shortens delivery times. As standard, the torque sensor is available with both an analog output (0-5 V, 0-10 V, ±5 V, ±10 V) and a frequency output (RS422, 24 bit) as well as a USB connection for configuration.

A test and calibration protocol is included in the scope of delivery, optional standard and special calibration certificates, also with an accreditation symbol, are available from the Burster calibration laboratory and can be ordered directly if required. The temperature range is between -20 °C ... +85 °C, the maximum operating torque is 300 % of the nominal torque.