Kistler Instruments Ltd. - PRODUCT NEWS


The latest addition to Kistler Instruments' ( 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.

Kistler Instruments Limited
Established in Wintherthur (Switzerland) in 1957, Kistler is represented in over 50 countries and has subsidiaries in Germany, France, Italy, UK, Japan, USA, China, Korea and Singapore. With a staff of more than 800, the Kistler Group is one of the world's leading providers of dynamic measuring instrumentation. The Kistler Group achieved turnover of 160 million Swiss Francs in the 2005 financial year.
Kistler's core competence is the development, production and use of sensors for measuring pressure, force and acceleration. Kistler's know-how and electronic systems can be used to prepare measuring signals for use in analyzing physical processes, controlling and optimizing industrial processes, improving product quality in manufacturing and improving performance in sports and rehabilitation.
Kistler offers a comprehensive range of sensors and systems for engine development, automotive engineering, plastics and metal processing, installation technology and biomechanics.
Heavy investment in research and development, 15% of staff worldwide are engaged in research and development, has generated a number of innovations using piezoelectric, piezoresistive and capacitive techniques to provide solutions to numerous force, pressure and acceleration measuring problems. These innovations include the world's first commercial quartz sensor, two-wire constant current technology to integrate sensors with microelectronic circuitry, high-temperature pressure sensors for use up to 400 Deg C and three-component force measuring sensors.


For more information, please contact :-

Kistler Instruments Ltd.
13 Murrell Green Business Park, London Road, Hook RG27 9GR
Tel: +44 (0)1256 741550
Fax: +44 (0)1256 741551

May 2008

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