Capacitive displacement transducer

摘要: A capacitive position transducer comprising two cylindrical coaxial reference electrodes disposed side by side, and a movable electrode within the for movement along axis to vary couplings between moving respective as functions of position. Flanges at each end are maintained ground potential project towards form guard rings. One or more screws conductive insulating material through rings adjust couplings. The spaced from housing, shaft, three-point bearings formed sapphire balls.