[특허]Position Transmitter

Position Transmitter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-023/62
출원번호	US-0425069 (1989-10-23)
발명자 / 주소	O\Neill Timothy P. (1176 Blue Bird Canyon Trail Vista CA 92084)
인용정보	피인용 횟수 : 19 인용 특허 : 0

초록 ▼

A digital position transmitter is disclosed which uses a fixed array of physicoelectric proximity switches to locate a physical exciter and transmit the position of the exciter as a hexadecimal coded number or as a string of pulses. The position transmitter uses solid state components, has no moving parts and requires less power than any one proximity operated alone. The transmitter attains moderate resolution while displaying excellent accuracy and precision. The transmitter is completely non-intrusive; there is no contact between the physical exciter and the switch array, making the transmitter particularly suited for determining the position of objects that must be completely isolated because of pressure, temperature, of chemical hazards. Further circuits are described for converting the inherently digital output signal to industrial standard 4-20 mA or voltage signals. Applications are described for determining the “fullness”of a constant pressure cylinder used in sampling liquids and gaseous materials from pipelines, the status of hydraulic valve positioners the liquid level contained in storage vessels, and differential pressure. Practical variations of the physicoelectric proximity switch array are described for applying the position transmitter to movements as small as one inch and as large as hundreds of feet.

대표청구항 ▼

A PEPS array for use with an electrically powered external controller that electrically energizes a combination of one of a plurality of row outputs and one of at least one column outputs as directed by internally generated address signals, generates an address active signal when an electrical status current exceeds an electrical reference current and is an active status current, and displays the address signal that corresponds to said address active signal in determining the position of a physical exciter moving along an intended path, comprising: a) a plurality of PEPS each of which achieves an active state and conducts said active status current only if electrically energized and physically excited, connected as a plurality of rows connected to said row outputs and at least one column connected to said column outputs such that each PEPS is electrically connected to a unique combination of one of said rows and one of said columns, electrically energized by said controller one of said PEPS at a time, such that each of said PEPS is electrically energized in turn; and b) support means to fixedly support said plurality of PEPS in a spaced relationship along said intended path and in close proximity to said exciter such that said exciter physically excites only the nearest PEPS and only said nearest PEPS can achieve said active state thereby causing said controller to display the address signal that corresponds to said nearest PEPS whereby the position of said exciter is directly related to the address signal which is displayed.

이 특허를 인용한 특허 (19)

Shahinpoor, Mohsen; Popa, Sorin Gabriel, Bio-electric sensor and switch system for medical imaging.
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De Armas Jorge, Electromagnetic-coupled/levitated apparatus and method for rotating equipment.
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Ge, Henry, Flow meter with sensor element having a magnetic element coupled to an inductor element.
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Plotnikov,Yuri Alexeyevich, Inspection systems and methods of operation.
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Harman,Robert M.; Couch,Philip R.; Barry,Alexander M.; Dixon,David M., Linear position indicator system and method.
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Lequesne,Bruno P. B.; Omekanda,Avoki M.; Schroeder,Thaddeus, Magnetic sensor array configuration for measuring a position and method of operating same.
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Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
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Flentge, Stefan; Vidal, Fausto Crespo, Method for monitoring the contact resistance of a wiper.
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Berrill Michael J.,GB6, Position responsive magnetic sensing elements for sensing the position of a member at a remote site.
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Plotnikov, Yuri Alexeyevich; Batzinger, Thomas James; Nath, Shridhar Champaknath; Dewangan, Sandeep Kumar; Lester, Carl Stephen; Herd, Kenneth Gordon; Rose, Curtis Wayne, Pulsed eddy current sensor probes and inspection methods.
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Plotnikov, Yuri Alexeyevich; Nath, Shridhar Champaknath; Rose, Curtis Wayne; Batzinger, Thomas James; Herd, Kenneth Gordon, Pulsed eddy current two-dimensional sensor array inspection probe and system.
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Kolkebeck, Kenneth W., Sash sensing system and method.
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Desrochers Eric M. ; Gaul Steven J. ; Winters Herbert A., Sash sensor and method of sensing a sash using an array of multiplexed elements.
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Scalf, Gerald W., Scalable code absolute logic function (SCALF) encoder.
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Dino Sprea IT; Fabrizio Galeotti IT, System for controlling the level of the liquid contained in a LPG tank or the like.
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Carli, Carlo, System for detecting linear dimensions of mechanical workpieces, with wireless signal transmission units.
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Veldhi, Sudhaker Rao; Kusumba, Srujan; Varahabhatla, Rajagopal, Systems and methods for receptacle auto fill using inductive sensing.
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Schley,William R.; Chapman,Eric B.; Nguyen,Dan Thanh; Flesch,Lawrence P.; Harper,Sandra Lynn; Stevens,Curtis Edgar, Through-wall position sensor.
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Fenny Carlos Alexander ; Bryan Darrel Bill, Visual fluid level indicator using magnetic pins.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Position Transmitter 원문보기

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이 특허를 인용한 특허 (19)

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