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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Multiple microphone photoacoustic leak detection and localization system and method

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01M-003/08    G01N-029/00    G01N-015/06   
미국특허분류(USC) 730/40..5A ; 703/601 ; 250/573
출원번호 US-0181283 (1998-10-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Burns
인용정보 피인용 횟수 : 14  인용 특허 : 19
초록

A method and system for multiple microphone photoacoustic leak detection and localization. The leak detection technique uses photoacoustic sounds produced by the interaction of a carbon dioxide (CO2) laser turned to 10.6 microns and a photoactive tracer gas, sulfur hexafluoride (SF.sub.6), emitted by calibrated leak sources. As the leaked gas is heated by the laser, it expands and launches a photoacoustic sound pulse. The sound pulses generated by the scanning process are recorded across a broad bandwidth by multiple ultra-sensitive microphones. After th...

대표
청구항

[ What is claimed is:] [1.]1. A system for the detection and localization of gas emitted from a container, the system comprising:a light source for producing non-pulsing light;means for scanning said non-pulsing light across a surface of the container;a light source for producing visible light colinear with the non-pulsing light for visualizing the non-pulsing light;a photoactive tracer gas pressurized within said container;means for detecting photoacoustic sound; andmeans for processing said photoacoustic sound, said means for processing said photoacous...

이 특허에 인용된 특허 (19)

  1. Spiesberger John L. (North Falmouth MA). Acoustic mapping system using tomographic reconstruction. USP1991024995011.
  2. Oehler, Oskar; Fries, Alexis. Detection means for the selective detection of gases, based on optical spectroscopy. USP1985124557603.
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  4. Tolstoy Alexandra I. (Annandale VA) Diachok Orest I. (Silver Spring MD) Frazer L. Neil (Kailua HI). Inverse tomography by matched field processing. USP1994105355312.
  5. Hartley Frank T. (Arcadia CA). Leak detection utilizing analog binaural (VLSI) techniques. USP1995055417113.
  6. Schroff Gerhart,DEX ; Stetter Michael,DEX. Method and apparatus for detecting leaks in a container. USP1999065917193.
  7. Suzuki Takehiko (Yamato JPX) Taniguchi Shozo (Tokyo JPX) Kanemaru Kohji (Yokohama JPX) Sato Yoshiyuki (Tokyo JPX) Enamito Akihiko (Chigasaki JPX). Method and apparatus for detecting the position of an abnormal site of a buried pipe. USP1996085544074.
  8. Ryan Frederick M. (Loyalhanna Township ; Westmoreland County PA) Feldman Donald W. (Los Alamos NM). Method and apparatus for the detection and measurement of gases. USP1986114622845.
  9. Rush William F. (Tinley Park IL) Huebler James E. (Brookfield IL). Multi-frequency photo-acoustic detector. USP1984074457162.
  10. Gelbwachs Jerry A. (Manhattan Beach CA). Multiple site laser excited pollution monitoring system. USP1985054516858.
  11. Fertig Glenn H. (Natrona Heights PA). Photo-acoustic detector. USP1989094866681.
  12. Fertig Glenn H. (Natrona Heights PA). Photo-acoustic detector. USP1990024903248.
  13. McRae Thomas G. (2751 Ryan Blvd. Punta Gorda FL 33950) Dewey Alan H. (5943 SW. County Rd. ; 761 Arcadia FL 33821). Photo-acoustic leak detection system and method. USP1992115161408.
  14. Olender Frederick T. ; Woody Bernard A. ; Newman Leon A.. Photo-acoustic leak detector with improved signal-to-noise response. USP1998075780724.
  15. Olender Frederick T. ; Woody Bernard A. ; Newman Leon A.. Photo-acoustic leak detector with multiple beams. USP1998115834632.
  16. Drzewiecki Tadeusz M. (Silver Spring MD) Toda Kenji (Rockville MD) Gurney John (Kensington MD). Photofluidic interface. USP1985044512371.
  17. McGlade Stuart M. (Chelmsford GBX). Radiation detectors having mechanical resonation. USP1989024806760.
  18. Hopkins Scott D. (Dryden NY) Spencer Daniel W. (Cortland NY) Lipari Charles P. (Port Jefferson NY) Altemose George A. (Stony Brook NY). System and method for testing the integrity of porous elements. USP1996115576480.
  19. Tokumoto Hiroshi (Tsukuba JPX) Bando Hiroshi (Tsukuba JPX) Sakai Fumiki (Tokyo JPX) Miyata Chikara (Tokyo JPX) Wakiyama Shigeru (Tokyo JPX). Tunnel current detecting photo-acoustic spectrometer. USP1990054921346.

이 특허를 인용한 특허 피인용횟수: 14

  1. Allison, Peter S.; Chassaing, Charles E; Lethcoe, Bryan. Acoustic impact detection and monitoring system. USP2009107607351.
  2. Kaji, Katsuhiro; Saijo, Kazuhiro. Acoustic leak detector with noise cancellation. USP2012018096167.
  3. Yonak, Serdar H.. Collision avoidance system and method. USP2016029250315.
  4. Avila, Luis F.. Leak detection with thermal imaging. USP2005036866089.
  5. McCoy,Fred Grant; Fazekas,Jonathan Mark; Borntrager,Ryan R.. Method and apparatus for detecting a gas. USP2006057051578.
  6. McCoy, Fred Grant; Fazekas, Jonathan Mark; Borntrager, Ryan R.. Method and apparatus for detecting leaks. USP2005016840086.
  7. McCoy, Fred Grant; Fazekas, Jonathan Mark; Borntrager, Ryan R.. Method and apparatus for detecting leaks. USP2005036860140.
  8. McCoy, Fred Grant; Fazekas, Jonathan Mark; Borntrager, Ryan R.. Method and apparatus for detecting leaks. USP2005036860141.
  9. McCoy,Fred Grant; Fazekas,Jonathan Mark; Borntrager,Ryan R.. Method and apparatus for detecting leaks. USP2007027178385.
  10. Dubois, Marc; Lorraine, Peter W.; Filkins, Robert J.. Method and apparatus for generating specific frequency response for ultrasound testing. USP2003126668654.
  11. Klippel, Wolfgang. Method and arrangement for detecting, localizing and classifying defects of a device under test. USP2013038401823.
  12. Höge, Harald. Method and device for classification of sound-generating processes. USP2013098533131.
  13. Grosse Bley, Werner; Küster, Gerhard; Bergmann, Joachim; Woldt, Erik. Method for testing the tightness of water conducting components in a housing. USP2015119188501.
  14. Corver, Jozef A. W. M.; De Best, Carlo J. J. M.; DeMarco, Francis W.; Debo, David. Monitoring freeze drying with gas measurement on vacuum pump exhaust. USP2015119194626.