A new capacitive pressure sensor with very large dynamic range is introduced. The sensor is based on a new technique for substantially changing the surface area of the electrodes, rather than the inter-electrode spacing as commonly done at the present. The prototype device has demonstrated a change in capacitance of approximately 2500 pF over a pressure range of 10 kPa.
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Title
Capacitive Pressure Sensor With Very Large Dynamic Range
Publication Details
IEEE transactions on components and packaging technologies, Vol.33(1), pp.79-83