[특허]Tank gauging system and methods

Tank gauging system and methods 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-023/28
출원번호	US-0039772 (1987-04-14)
발명자 / 주소	Haynes John S. (Greensboro NC)
출원인 / 주소	Gilbarco, Inc. (Greesnboro NC 02)
인용정보	피인용 횟수 : 21 인용 특허 : 0

초록 ▼

Ultrasonic apparatus for measuring and remotely displaying the amount of liquid in a tank, the amount of water in the tank and the velocity of sound through the liquid in the tank is described with special application to a buried tank containing gasoline with the possibility of water in the bottom of the tank. The apparatus includes an ultrasonic transducer at a fixed distance above the bottom of the tank, a plurality of submerged reflectors vertically arranged at fixed distances above the transducer and a remote console, containing a computer, for activating the transducer and receiving signals of ultrasonic reflections developed by the transducer. Methods are disclosed utilizing the apparatus for computing the height of the liquid (gasoline) level, the depth of the water, if any, the velocity of sound through the gasoline and through the liquid as a whole, and for computing average temperature of the liquid in the tank. In the preferred embodiment, the reflectors are thin, planar sheets increasing in horizontal length with increasing distance from the transducer, the lower edges of which may be concave to maximize the reflections of ultrasonic pulses from the transducer back through the fluid to the transducer.

대표청구항 ▼

A system for determining the amount of liquid in a tank comprising: (a) support member; (b) a plurality of ultrasonic reflectors spaced at predetermied distances from each other along said support member, so that each of said reflectors lies at a predetermined height above the bottom of said tank; (c) transducer means positioned below said reflectors and located underneath the surface of and within said liquid in said tank and at a known height spaced from and above the bottom of said tank, said transducer means being operable for transmitting ultrasonic energy upwardly through said liquid towards the underside of said surface and for forming data signals representing the reflections of said transmitted energy off of the submerged ones of said plurality of reflectors and off of the surface of said liquid, and (d) control means for operating said transducer means, said control means including signal processing means for receiving said data signals from said transducer means, signal detection circuitry coupled to said signal processing means and including means for varying detection sensitivity in a predetermined sequence of successive steps of increasing sensitivity until said data siganls representing reflection of said transmitted energy off of said surface of said liquid are received and detected, means for computing an average velocity of said ultrasonic energy in said liquid from said detected data signals representative of reflections from the highest one of said submerged reflectors, for computing the height of said surface of said liquid from said bottom of said tank utilizing said computed average velocity and for thereby determining the amount of liquid in said tank.

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Eriksson, Bror A., Method and apparatus for testing liquid fillings in tanks.
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Rountree Steven P. (Lafayette LA) Berjaoui Samir W. (Lafayette LA), Methods and apparatus for use in ultrasonic ranging.
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Aderholt Gary L. (R.R. 14 ; Box 132 Athens AL 35611) Lenox Michael A. (R.R. 14 ; Box 132-A Athens AL 35611), Sonic tank inventory control system and method.
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Lovegren, Eric R.; Diede, Kurt C.; Carlson, Ryan R., Threshold setting for a radar level transmitter.
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Caldwell Joseph W. (Danville CA) Slobodnik Mark W. (Martinez CA), Ultrasonic liquid level monitoring system.
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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

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Tank gauging system and methods 원문보기

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