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Type 4005A... – Absolute Pressure Measurement

Type 4005A... – Absolute Pressure Measurement

28 April 2006

The M5-size piezoresistive pressure sensor Type 4005A... is designed for measuring absolute pressure in engines. A so-called DCE sensor (DCE = Direct Chip Exposure), it does not have a steel diaphragm for separating media, but is exposed directly to the medium. The piezoresistive silicon measuring element is placed behind a protective shield and provided with a protective coating.

Thanks to a special coating the sensor is able to withstand typical fuel and lubricating oil vapours. A good deal of flexibility in mounting is achieved thanks to the sensor’s compact design, so that it can always be located in the optimum position for measurements in the intake system.

In addition to small dimensions, this design achieves superb linearity, low hysteresis and a high natural fre-quency. Used in conjunction with the piezoresistive amplifier module, the SCP signal conditioning system and PiezoSmart® automatic sensor identification, the new Type 4005A... constitutes a powerful measuring system which is very easy to operate.

Kistler Instrumente AG

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.

A worldwide sales presence in the form of 18 group companies and 30 distributors ensures customer proximity, application support on an individual level and short lead times.

With a staff of 800, the Kistler Group is one of the world’s leading providers of dynamic measuring instrumentation. The Kistler Group achieved turnover of 174 million Swiss Francs in the 2006 financial year.

  • Kistler Instrumente AG
    Eulachstrasse 22
    8408 Winterthur
    Switzerland / Europe
    Tel.: +41 52 224 11 11
    Fax: +41 52 224 14 14
    Web :
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