Communications: electrical – Continuously variable indicating – With particular transmitter
Patent
1993-07-08
1997-01-28
Peng, John K.
Communications: electrical
Continuously variable indicating
With particular transmitter
340671, 324660, 324663, 318662, G08C 1910
Patent
active
055981534
ABSTRACT:
Measuring device for the measurement of a rotor angle including a capacitive angular displacement transducer generating an output that varies with an angular displacement of a shaft. A first stator has a plurality of transmitting electrodes to generate electric fields within the transducer due to excitation signals applied to the plurality of transmitting electrodes which are electrically conducting circle sectors of equal area which are electrically isolated from each other and which completely cover a rotational angle of 2.pi. on the first stator. A second stator is parallel and coaxial to the first stator and includes a conductive ring electrode receiving excitation from the first stator and producing an electric output signal. A rotor is located coaxially, parallel to the first stator and the second stator. The rotor has at least one rotor blade in the form of circle sectors, the central angle of each rotor blade being equal to at least the sum of the central angles of two sectors of the first stator. A generator delivers output voltages to the sectors. An evaluation unit is connected to the second stator and includes at least one separation unit connected via an amplifier to the second stator and a following signal processing unit. The generator provides at least two different electrically separable output signals. The separation unit separates the received input signal with respect to the excitation signals into angle dependent transfer functions. The following signal processing unit determines the rotor angle from the angle dependent transfer functions.
REFERENCES:
patent: 3683402 (1972-08-01), Parnell
patent: 3732553 (1973-05-01), Hardway, Jr.
patent: 3845377 (1974-10-01), Shimotori
patent: 4092579 (1978-05-01), Weit
patent: 4238781 (1980-12-01), Vercellotti et al.
patent: 4864295 (1989-09-01), Rohr
patent: 5077635 (1991-12-01), Bollhagen et al.
patent: 5099386 (1992-05-01), Stokes et al.
Brasseur Georg
Eberharter Thomas
Peng John K.
Wu Daniel J.
LandOfFree
Capacitive angular displacement 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 Capacitive angular displacement transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitive angular displacement transducer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-944005