Title :
Investigation of a capacitance-based displacement transducer
Author :
Bertone, Gregory A. ; Meiksin, Z.H. ; Carroll, Norman L.
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
A capacitance-based displacement transducer consisting of three concentric cylinders is introduced and analyzed. The design eliminates measurable humidity effects and reduces temperature effects to below 10 p.p.m./°C over the temperature range of 20°C to 60°C. Electric noise considerations lead to a design of a 0.5-in-span (12-mm) transducer with 0.01% accuracy
Keywords :
displacement measurement; transducers; 20 to 60 degC; concentric cylinders; displacement transducer; electric noise; humidity effects; Capacitance measurement; Capacitors; Coaxial components; Displacement measurement; Electrodes; Humidity; Magnetic noise; Shafts; Temperature distribution; Transducers;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
