A comparison of location methods for pinholes in pipelines

Author

Watanabe, Kajiro ; Kakishima, Masayuki ; Yokoyama, Kenichi

Author_Institution

Coll. of Eng., Hosei Univ., Tokyo, Japan

fYear

1994

fDate

10-12 May 1994

Firstpage

821

Abstract

Here, we compare the two acoustic methods named cross-correlation and auto-correlation to locate pinhole locations in a gas-pipeline. The cross-correlation method that determines the location from the cross-correlation of two acoustic signals detected at two terminals of the pipeline is effective for pipelines with greater acoustic damping. Whereas the auto-correlation method that determines the location from the auto-correlation of the acoustic signal detected at one terminal of the pipeline is effective for those with less acoustic damping

Keywords

acoustic applications; acoustic signal processing; correlation methods; fault location; microphones; signal detection; underground transmission systems; acoustic damping; acoustic methods; acoustic signals; autocorrelation; cross-correlation; gas-pipeline; location methods; pinholes; pipelines; Acoustic measurements; Acoustic propagation; Acoustic signal detection; Autocorrelation; Correlation; Damping; Leak detection; Microphones; Pipelines; Signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE

Conference_Location

Hamamatsu

Print_ISBN

0-7803-1880-3

Type

conf

DOI

10.1109/IMTC.1994.351983

Filename

351983