Capacitive Type Pressure Transducers Principle

Capacitive-type transducers, illustrated in Figure, consist of two flexible conductive plates and a dielectric.

In this case, the dielectric is the fluid.

Capacitive Pressure Transducer

As pressure increases, the flexible conductive plates will move farther apart, changing the capacitance of the transducer.

This change in capacitance is measurable and is proportional to the change in pressure.

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