Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1989-04-27
1991-07-02
Wieder, Kenneth
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324679, 34087037, G01R 2726
Patent
active
050288750
ABSTRACT:
A bridge-type capacitance transducer is disclosed. The transducer utilizes a coaxially mounted circular stator and circular rotor to form the capacitance bridge. An excitation voltage is applied to the bridge. The output voltage of the bridge is conditioned by synchronous detection so as to yield a signal proportional to the degree of rotation of the rotor.
REFERENCES:
patent: 3121839 (1964-02-01), Malenick et al.
patent: 3198937 (1965-08-01), Wooster
patent: 3296522 (1967-01-01), Wolfendale
patent: 3337789 (1967-08-01), Ono et al.
patent: 3729991 (1973-05-01), Hardway, Jr.
patent: 3732553 (1973-05-01), Hardway, Jr.
patent: 3845377 (1974-10-01), Shimotori
patent: 3938113 (1976-02-01), Dobson et al.
patent: 4023413 (1977-05-01), Stauber
patent: 4092579 (1978-05-01), Weit
patent: 4439725 (1984-03-01), Ogasawara
patent: 4720698 (1988-01-01), Brooke et al.
patent: 4755731 (1988-07-01), Anthony et al.
patent: 4788546 (1988-11-01), Sasaki
Stefanides, E. J., "Inductive Sensors Improve Automotive Position Sensing", Design News, pp. 256-257 (Oct. 3, 1988).
Jones, B. E., "Simple Capacitance Transducer for Instantaneous Angular-Velocity Measurement", Electronics Letters 6(20): 651-652 (Oct. 1, 1970).
Stacey, F. D., et al., "Displacement and Tilt Transducers 140 dB Range", Journal of Scientific Instruments 2(2): 945, (12/1969).
Makow, D., "A New Stable Capacitor and Its Application to the Measurement of Angle", Radio Science 6(1):1-5 (Jan. 1971).
Smirnov, M. V., et al., "Capacitive Transducer of Torsional Oscillations for Oscillation-Type Viscosimeters (Exchange of Experience)", Institute of Electrochemistry of the Urals Scientific Center, Academy of Sciences of the U.S.S.R., translated from Zavodskaya Laboratoriya 45(5):442 (May 1979).
Winkler, L. I., "Measurement of Small Electrical Forces Using a Torsion Balance and Capacitive Position Transducer", Rev. Sci. Instrum. 57(12):3019-3023 (Dec. 1986).
Mueller Robert W.
Texas Tech University
Wieder Kenneth
LandOfFree
Linear rotary differential capacitance transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linear rotary differential capacitance transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear rotary differential capacitance transducer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1249725