Communications: electrical – Continuously variable indicating – With particular transmitter
Patent
1994-07-11
1996-11-12
Hofsass, Jeffery
Communications: electrical
Continuously variable indicating
With particular transmitter
34087037, 324658, 324659, 33391, 33366, G08C 1500
Patent
active
055744427
ABSTRACT:
First and second fixed electrodes are fixedly provided on a housing which is mounted on a surface whose inclination angle is to be detected. A rotatable electrode is inserted between these fixed electrodes, and this rotatable electrode is mounted on a shaft which is rotatably provided on the housing. The rotatable electrode is made to regularly face a constant direction with respect to the gravitational direction. The first fixed electrode has a central angle of 180.degree., for example, and is split into a first fixed split electrode member having a central angle of 60.degree. and a second fixed split electrode member having a central angle of 120.degree.. Wires are connected to the fixed split electrode members respectively, thereby taking out two series-connected capacitances which are formed by the respective ones of the first and second fixed split electrode members and the rotatable electrode. The second fixed electrode is structured similarly to the first fixed electrode. Thus, it is possible to detect the inclination angle of the surface to be measured on the basis of the capacitances.
REFERENCES:
patent: 3668672 (1972-06-01), Parnell
patent: 4667413 (1987-05-01), Pitts
patent: 4703315 (1987-10-01), Bein et al.
patent: 4912662 (1990-03-01), Butler et al.
patent: 5028875 (1991-07-01), Peters
patent: 5083383 (1992-01-01), Heger
patent: 5261279 (1993-11-01), Wolf et al.
Kinoshita Motohiro
Masuda Fumitoshi
Okunishi Hiromu
Oshima Masanori
Yamauchi Kiminori
Hofsass Jeffery
Mannava Ashok
Murata Manufacturing Co. Ltd.
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