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Title:
METHOD FOR SENSING GAS LEAKAGE
Document Type and Number:
Japanese Patent JP2002340723
Kind Code:
A
Abstract:

To provide a correlation type gas leakage method which can calculate the number of acoustic sensors necessary to specify a leakage position of the gas duct by using one acoustic sensor.

The method for sensing the gas leakage comprises the steps of disposing the one acoustic sensor M at a predetermined position of the gas duct, comparing a sensing signal captured by the sensor M with a waveform spectrum of the case that there is no leakage, and specifying the number of the sensors which can sense the leakage position by a correlation method to one or two based on information of a time difference from the sensing signals of the first peak value and the second peak value detected in delay from the sensing signal of the first peak value and information of an amplitude of the sensing signal of a second peak value when the leakage is sensed.


Inventors:
UEMATSU REPPEI
NANBA MITSUO
TAKEDA HIROSHI
SATO KOICHI
HAYASHI HIROYOSHI
TSUBOI KEIICHI
Application Number:
JP2001148710A
Publication Date:
November 27, 2002
Filing Date:
May 18, 2001
Export Citation:
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Assignee:
KOATSU GAS HOAN KYOKAI
International Classes:
G01H3/00; G01H17/00; G01M3/24; (IPC1-7): G01M3/24; G01H3/00; G01H17/00
Domestic Patent References:
JPH1019716A1998-01-23
JPH10176970A1998-06-30
JP2000055771A2000-02-25
JP2002535644A2002-10-22
JPH10281921A1998-10-23
JPH0587669A1993-04-06
JPS6255540A1987-03-11
JPS62297741A1987-12-24
JPH1019716A1998-01-23
JPH10176970A1998-06-30
JP2000055771A2000-02-25
JP2002535644A2002-10-22
JPH10281921A1998-10-23
JPH0587669A1993-04-06
JPS6255540A1987-03-11
JPS62297741A1987-12-24
Attorney, Agent or Firm:
Kenzo Fukuda (2 outside)



 
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