JPH0441768B2 - - Google Patents

Info

Publication number
JPH0441768B2
JPH0441768B2 JP59047864A JP4786484A JPH0441768B2 JP H0441768 B2 JPH0441768 B2 JP H0441768B2 JP 59047864 A JP59047864 A JP 59047864A JP 4786484 A JP4786484 A JP 4786484A JP H0441768 B2 JPH0441768 B2 JP H0441768B2
Authority
JP
Japan
Prior art keywords
gas
sound wave
gas cutoff
leakage
sonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59047864A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60192235A (ja
Inventor
Hiroaki Tanaka
Kozo Sakurai
Masayuki Matsura
Takashi Ueki
Fujitaka Taguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Gas Co Ltd
Original Assignee
Tokyo Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Gas Co Ltd filed Critical Tokyo Gas Co Ltd
Priority to JP4786484A priority Critical patent/JPS60192235A/ja
Publication of JPS60192235A publication Critical patent/JPS60192235A/ja
Publication of JPH0441768B2 publication Critical patent/JPH0441768B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)
JP4786484A 1984-03-13 1984-03-13 ガス遮断機器の漏洩検査方法 Granted JPS60192235A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4786484A JPS60192235A (ja) 1984-03-13 1984-03-13 ガス遮断機器の漏洩検査方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4786484A JPS60192235A (ja) 1984-03-13 1984-03-13 ガス遮断機器の漏洩検査方法

Publications (2)

Publication Number Publication Date
JPS60192235A JPS60192235A (ja) 1985-09-30
JPH0441768B2 true JPH0441768B2 (enrdf_load_stackoverflow) 1992-07-09

Family

ID=12787233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4786484A Granted JPS60192235A (ja) 1984-03-13 1984-03-13 ガス遮断機器の漏洩検査方法

Country Status (1)

Country Link
JP (1) JPS60192235A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821769A (en) * 1986-11-12 1989-04-18 Cd Medical Inc. Valve monitor and method
US5115672A (en) * 1991-02-11 1992-05-26 Westinghouse Electric Corp. System and method for valve monitoring using pipe-mounted ultrasonic transducers
CN109654384B (zh) * 2019-01-29 2024-04-02 南京工业大学 基于pso-vmd算法的管道泄漏检测装置及检测方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152322A (enrdf_load_stackoverflow) * 1974-05-29 1975-12-08
JPS52104985A (en) * 1976-02-28 1977-09-02 Shinzou Shioda System for measuring leakage by supersonic waves

Also Published As

Publication number Publication date
JPS60192235A (ja) 1985-09-30

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