Electronic Device And Electronic Circuit

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Thursday, August 24, 2006

Capacitance Transducer Type

Passive Transducers is require external power
- variable capacitance pressure gage
operation = distance between two parallel plates is varies by an external
applied force
- capacitor microphone
operation = sound pressure varies the capacitance between a fix plate and
a movable diaphragm
- dielectric gage
operation = variation in capacitance by changes in the dielectric