The SIKA DSA / DSP pressure sensors are used to measure relative pressure, overpressure or absolute pressure. High-quality stainless steel and front-flush diaphragm also allow these sensors to be used in viscous or contaminated media.The measuring element is a silicon chip, out of which a diaphragm has been etched. A Wheatstone bridge circuit is formed…
The SIKA DSA / DSP pressure sensors are used to measure relative pressure, overpressure or absolute pressure. High-quality stainless steel and front-flush diaphragm also allow these sensors to be used in viscous or contaminated media.
The measuring element is a silicon chip, out of which a diaphragm has been etched. A Wheatstone bridge circuit is formed by the application of foreign ions to the silicon diaphragm. When the diaphragm bends, a resistance change results which is a measurement of the pressure. If the rear side of the chip is prestressed with a reference vacuum, absolute pressure can also be measured.
Since silicon chips are very sensitive, the entire chip is enclosed in a measuring element chamber. This is for reasons of media compatibility. The chamber is separated from the medium by a stainless steel diaphragm. The pressure is transmitted with a neutral oil.
Datasheet SIKA Pressure Transmitters and Pressure Switches | Datasheet_SIKA_Pressure_transmitters_and_pressure_switches.pdf |
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