Leak inspection device, leak inspection method, and leak inspection program
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 15, 2018
Issued Date -
N/A
app pub date -
Aug 19, 2013
filing date -
Sep 27, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Each functional configuring unit of a leak inspection device (2000) operates in the manner that follows. A vibration acquisition unit (2020) acquires a signal indicating tubing vibrations or vibrations propagated from tubing. A filtering unit (2040) extracts a signal of a predetermined frequency band from the signal acquired by the vibration acquisition unit (2020). A characteristic value extraction unit (2060) splits the signal extracted by the filtering unit (2040) into predetermined time intervals, calculates for each split signal the absolute value of each extreme value of the magnitude of the signal, performs for each split signal a statistical process with respect to the calculated plurality of absolute values, and considers values calculated by the statistical process to be characteristic values. A leak determination unit (2080) considers inspection results to indicate the presence of a leak when a determination index value stipulated using the characteristic values is greater than a predetermined threshold.
First Claim
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Family
International Classification(s)
- 2013 Application Filing Year
- G01M Class
- 1152 Applications Filed
- 955 Patents Issued To-Date
- 82.90 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G01M Class
- 0 % this patent is cited more than
- 7 Age
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|---|---|---|---|---|
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