Industrial Factory Automation

Kistler Instruments is to highlight its contactless torque sensors at the Mtec 2010 event, alongside its range of acceleration, force and pressure sensors and associated electronics and software. The contactless, low-maintenance torque sensors are said to cost no more than slip rings. Using non-contact signal transmission eliminates wear, making the sensor robust and maintenance free, even in continuous use. The type 4520A is available with rated torque from 1-1,000Nm with accuracy class of 0.5 at speeds up to 10,000rev/min. Output is the standard +/- 10V plus a speed signal of 60 pulses/rev and remotely switchable 100 per cent test function.

Kistler 's piezoelectric torque sensors have a wide measuring range and are adaptable to match most configurations, making them suited to manufacturing-process monitoring. The sensors are available with measuring ranges of 1, 10, 25, 200 and 1,000Nm and all are suitable for torques from approximately 0.001Nm. The torque sensors are supplied calibrated for 100 and 10 per cent of the measuring range with additional calibration ranges available as an option. Installation is flexible as each sensor has an end flange with four or six threaded mounting holes and a centring seat for precise coaxial installation. A central hole allows a shaft to pass through the sensor. The high sensitivity, rigid construction and compact dimensions of the sensors make them particularly suited to monitoring applications in assembly processes and product testing where rotary movements are involved: typically screw, bolt or nut tightening to specific torque; rotary potentiometer and switch testing; and screw...