Kistler Pressure Sensors

Piezoelectric pressure sensors
As active designs, piezoelectric sensors can only be used for quasistatic rather than truly static measurement. However they are ideal for dynamic applications. Piezoelectric pressure sensors can be employed wherever rapidly changing pressures at temperatures of up to 400°C have to be measured as accurately as possible.

» Piezoelectric technology

In addition to quartz Kistler uses crystals developed and grown in-house. These PiezoStar crystals are characterized by high sensitivity and high thermal stability.
The mechanical and electrical characteristics of the crystal can therefore be perfectly matched to the requirements of a particular application. Together with the modular sensor case, this means exactly the right sensor is always available.

Piezoresistive pressure sensors
The piezoresistive principle is based on the semiconductor effect first described in 1954, which states that under mechanical stress semiconductors change their electrical resistance. Compared with the conventional strain gage measurement of the time, this opened up completely new applications. Since then similar breakthroughs have included the thin film technique on metal and its thick layer counterpart on ceramic. Piezoresistive sensors from Kistler measure static pressures in gases and liquids. The results achieved under even the most adverse conditions are precise and repeatable.

» Piezoresistive technology