[특허]In-line fluid monitor system and method

In-line fluid monitor system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-001/68
출원번호	US-0693357 (1991-04-30)
발명자 / 주소	Goldberg Jack (San Diego CA) Zublin Kurt E. (Poway CA) Bell Marl J. (Valley Center CA)
출원인 / 주소	IVAC Corporation (San Diego CA 02)
인용정보	피인용 횟수 : 77 인용 특허 : 0

초록 ▼

A non-invasive, in-line fluid monitor includes a segment of fluid line disposed such that it and the fluid within become a part of the dielectric loading on an energized electromagnetic sensor device. Perturbations of the dielectric loading on the sensor device are monitored to determine certain fluid properties, such as pressure, composition, and the presence of air. The fluid line segment disposed through the electromagnetic sensor may be compliant and thus changes size in response to fluid pressure, altering the volume of the fluid line segment tin the cavity and altering the dielectric loading on the cavity. In one embodiment, a resonant cavity is used to encompass the segment of fluid line and a processor is used to compare changes in the resonant characteristics of the cavity to predetermined data to determine the properties of the fluid. In an alternative embodiment, a transmission device such as a delay line is utilized as the sensor element, and in another embodiment, a microstrip resonator is utilized as the sensor element. In yet another embodiment incorporating a means of determining the volumetric fluid flow rate, the size of air bubbles in the fluid is assessed.

대표청구항 ▼

An apparatus for monitoring fluid in a fluid line, the apparatus comprising: a compliant fluid line segment coupled to the fluid line such that the fluid flows through the segment; a dielectrically loaded electromagnetic sensing device coupled to the compliant segment such that the segment and fluid therein provide dielectric loading on the sensing device, the sensing device providing a sensor signal representative of the dielectric loading; a flow data source which provides a flow signal representative of the volumetric flow rate of the fluid in the fluid line; and a processor, having predetermined gas data representative of a gas in the fluid, which receives the sensor signal from the sensing device, provides a loading signal representative of the dielectric loading, compares the loading signal to the predetermined gas data to detect the presence of the gas and upon detecting the gas, determines the time period that the sensing device detects the gas and processes the detection time period with the flow signal and provides a signal indicative of the size of the gas bubble.

이 특허를 인용한 특허 (77)

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Brown, Gregory C.; Richter, Brian E., Hydraulic piston position sensor.
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Brown, Gregory C.; Johnson, James A.; Lovegren, Eric R., Hydraulic piston position sensor signal processing.
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Oruklu, Meriyan; Ruchti, Timothy L.; Kotnik, Paul T.; Belkin, Anatoly S., Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system.
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Unverdorben, Martin, Intelligent air bubble detector and counters for automated infusion systems.
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Bennett, James W.; Matsiev, Leonid F., Intravenous fluid monitoring.
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Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
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Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
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Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
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Gundrum, Daniel; Scherer, Nicholas, Lubricant dispenser with nozzle.
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Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispensing nozzle.
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Niksa, Andrew J.; Fousek, James D., MEMS-based sensor for lubricant analysis.
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Weatherall,James C.; Gatto,Joseph A., Method and apparatus for obtaining spatial information and measuring the dielectric constant of an object.
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Chan Danley C. ; Berger Alan D., Method and apparatus for sensing piston position.
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Chan Danley C. ; Berger Alan D., Method and apparatus for sensing piston position.
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Chan Danley C. ; Berger Alan D., Method and apparatus for sensing piston position using a dipstick assembly.
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Chan Danley C. ; Berger Alan D., Method and apparatus for sensing the orientation of a mechanical actuator.
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Riley, Timothy A.; Stringham, Mark D.; Blaine, David H.; Crandall, Frank A.; Eggers, Philip N., Method for making and using an air bubble detector.
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Ehata,Katsufumi, Method of measuring relative dielectric constant of dielectric substance of powders, cavity resonator used in the same, and application apparatus.
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Cheiky-Zelina Margaret A. ; Bush Wayne A., Miniature sensor for lubricant analysis.
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Bennett, James W.; Matsiev, Leonid F., Multi-parametric fluid determination systems using complex admittance.
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Matsiev, Leonid; Bennett, James W.; Weickert, Michael J., Systems and methods for the identification of compounds in medical fluids using admittance spectroscopy.
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Hills, Chris, Ultrasonic air and fluid detector.
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Riley, Timothy A.; Stringham, Mark D.; Blaine, David H.; Crandall, Frank A.; Eggers, Philip N., Universal air bubble detector.
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Riley, Timothy A.; Stringham, Mark D.; Blaine, David H.; Crandall, Frank A.; Eggers, Philip N., Universal air bubble detector.
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Riley, Timothy A.; Stringham, Mark D.; Blaine, David H.; Crandall, Frank A.; Eggers, Philip N., Universal air bubble detector.
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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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연합인증

In-line fluid monitor system and method 원문보기

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In-line fluid monitor system and method 원문보기

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이 특허를 인용한 특허 (77)

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