Sensors measure absolute pressure in engines

Piezoresistive pressure sensor measures absolute pressure in engine intake and exhaust areas where high accuracy and small dimensions and flexibility of mounting location are a necessity.

Piezoresistive pressure sensor measures absolute pressure in engine intake and exhaust areas where high accuracy and small dimensions and flexibility of mounting location are a necessity.

The new Type 4005 M5-size piezoresistive pressure sensor has been developed for measuring absolute pressure in engine applications, in particular for measuring the intake and exhaust pressures where high accuracy and small dimensions are a necessity.

The sensor uses DCE technology (Direct Chip Exposure) where the measuring element is exposed directly to the medium.

A perforated shield provides mechanical protection and a protective coating enables the sensor to withstand direct exposure to fuel and oil vapour.

The M5 size allows maximum mounting flexibility allowing the sensor to be positioned for optimum measuring accuracy.

Although initially designed for applications in internal combustion engines, the superb linearity, low hysteresis and high natural frequency make the new sensor ideal for many applications where precision and small size are required.

The sensor is also available with PiezoSmart automatic sensor identification, which simplifies installation and ensures that operator errors during set-up are eradicated.

* About Kistler Instruments - 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 650, the Kistler Group is one of the world's leading providers of dynamic measuring instrumentation.

The Kistler Group achieved turnover of SFR 150 million in the 2004 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.

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