PRODUCT NEWS

AL RANGE SENSOR MEASURES PEAK & AVERAGE TORQUE. The latest addition to Kistler Instruments' (www.kistler.com) range of torque sensors, the Type 4503A, can measure both peak and average operating torques with a high degree of accuracy. Extreme ratios of high peak to moderate operating torque occur, for example, during starting and abrupt deceleraton or braking of presses and elevators. Torsional vibration encountered in combustion engines, pumps and compressors can also create potentially damaging peak loads. To measure peak values, conventional sensors have to be designed to withstand the peak torque without overload damage with the result that the signal resolution is inadequate for accurate measurement at the much lower levels of torque experienced during normal operation. The Type 4503A dual-range sensor overcomes this problem by being sufficiently robust to withstand the peak torque and having two independent ranges; a peak range and a second, lower range with resolution to provide accurate measurement at the much lower operating torque. Models with rated torques between 0.2 Nm and 5,000 Nm are available, with the option of range ratios of 10:1 or 5:1 from 1 Nm. Accuracy is ±0.1% of the peak torque range and ±0.2% of the lower operating torque range. An optional version offers an enhanced linearity of 0.05%. Power is supplied and the measurement signals transferred between the rotating shaft and the case without contact making the new sensors suitable for high operating speeds of up to 50,000 rpm. The DC supply and the calibrated signal outputs of ±10 V facilitates integration into existing test stand systems. There is also a serial data interface available. May 2008 Home - Search - Suppliers - Links - New Products - Catalogues - Magazines Problem Page - Applications - How they work - Tech Tips - Training - Events