[특허]NSMS flight laser detector system

NSMS flight laser detector system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01L-001/24
출원번호	US-0220368 (2008-07-24)
등록번호	US7984656 (2011-07-12)
발명자 / 주소	Nicklous, Allison Clark Dreger, Edward F. Caswell, William F.
출원인 / 주소	United Technologies Corporation
대리인 / 주소	Kinney & Lange, P.A.
인용정보	피인용 횟수 : 4 인용 특허 : 17

초록 ▼

A method includes rotating a rotor, measuring a rotor rotational time for the rotor to complete a revolution, determining a blade interval by dividing the rotor rotational time by a number of blades carried on the rotor, establishing an active hold-off time interval as a percentage of the blade interval time, directing a beam of light at the blades of the rotor using a laser, sensing light reflected from the blades, generating an output signal as a function of the sensed light, establishing a signal amplitude threshold, analyzing an amplitude of the output signal to trigger the active hold-off time interval when the amplitude reaches the signal amplitude threshold, and generating a blade arrival signal as a function of triggered active hold-off time intervals. The output signal is not analyzed within each active hold-off time interval.

대표청구항 ▼

The invention claimed is: 1. A method comprising:rotating a rotor;measuring a rotor rotational time for the rotor to complete a revolution;determining a blade interval by dividing the rotor rotational time by a number of blades carried on the rotor;establishing an active hold-off time interval as a percentage of the blade interval time;directing a beam of light at the blades of the rotor using a laser;sensing light reflected from the blades;generating an output signal as a function of the sensed light;establishing a signal amplitude threshold;analyzing an amplitude of the output signal to trigger the active hold-off time interval when the amplitude reaches the signal amplitude threshold, wherein the output signal is not analyzed within each active hold-off time interval; andgenerating a blade arrival signal as a function of triggered active hold-off time intervals.

이 특허에 인용된 특허 (17)

Chadwick ; James R., Aircraft rotor out-of-track correction method and apparatus.
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Spillman ; Jr. William B. (Charlotte VT), Composite integrity monitoring.
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Kure-Jensen Jens (Schenectady NY) Gordon Richard S. (Schenectady NY) Devlin Charles L. (Ballston Lake NY) Krings Frederick C. (Schenectady NY), Dedicated microcomputer-based control system for steam turbine-generators.
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Griffin,Jerry H.; Feiner,Drew M., Determination of damping in bladed disk systems using the fundamental mistuning model.
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Bodlaj Viktor (Munich DT), Method and apparatus for automatic and contactless measurement of the height of moving blades of a turbine.
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Drinkuth William H. (Amston CT) Bires Robert J. (Glastonbury CT) Miller Robert J. (Vernon CT) Selleck Franklin G. (Portland CT), Method and apparatus for grinding turbine engine rotor assemblies using dynamic optical measurement system.
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Hofer Gerhard (Rttenbach DEX), Method and apparatus for measuring internal mechanical stress of a ferromagnetic body by determining the third harmonic.
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Pratt Norman F. (Scottsdale AZ), Method and apparatus for measuring strain or fatigue.
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Gotoh,Jinichiro; Hayasaka,Yasushi; Sakurai,Shigeo; Ikeda,Hiraku, Method and system for diagnosing state of gas turbine.
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Steven D. Martinez ; William Mark Blevins ; John Russell Kabler ; Lonny Wayne Rakes ; Jeffrey Norman Schoess, Method and system for optical distance and angle measurement.
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Zombo Paul J. (Cocoa FL) Metala Michael J. (Murrysville PA) Moore Charles C. (Hibbs PA) Guenther Paul (Murrysville PA) Bertsch Oran L. (Titusville FL), NDE eddy current sensor for very high scan rate applications in an operating combustion turbine.
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Bedard Kenneth J. (Hartford CT), Optical measurement system for articles with varying surface reflectivity.
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Reschovsky John M. (Schenectady NY) Hunt Gerald P. (Cohoes NY), Range selectable contactless data acquisition system for rotating machinery.
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Wobben,Aloys, Rotor blade of a wind power installation, comprising a warning light.
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Flippen, Jr.,Luther D., System and method for in-flight trajectory path synthesis using the time sampled output of onboard sensors.
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Twerdochlib,Michael, Turbine blade for monitoring torsional blade vibration.
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Gobrecht Edwin,DEX ; Langbein Rolf,DEX, Turbine guide and a method for regulating a load cycle process of a turbine.
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이 특허를 인용한 특허 (4)

Tine, Steven; Lomenzo, Jr., Richard A.; Klinefelter, Kevin J.; Vinson, Elizabeth F.; Olsen, Kaitlin; Davis, Thomas R., Airfoil resonant frequency testing.
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Hockaday, Bruce, Focused optical configuration for NSMS probes.
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Penda, Allan R.; Urban, Justin R., Monitoring a dynamic parameter such as torque in a rotational system.
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Gendrich, Charles P., Monitoring one or more turbine engine rotor blades by correlating measurement data and reference data as a function of time.
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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

연합인증

NSMS flight laser detector system 원문보기