JPH022527B2 - - Google Patents

Info

Publication number
JPH022527B2
JPH022527B2 JP3600083A JP3600083A JPH022527B2 JP H022527 B2 JPH022527 B2 JP H022527B2 JP 3600083 A JP3600083 A JP 3600083A JP 3600083 A JP3600083 A JP 3600083A JP H022527 B2 JPH022527 B2 JP H022527B2
Authority
JP
Japan
Prior art keywords
water
amplifier
signal
reference voltage
outputs
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
Application number
JP3600083A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59162433A (ja
Inventor
Tadashi Saito
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP3600083A priority Critical patent/JPS59162433A/ja
Publication of JPS59162433A publication Critical patent/JPS59162433A/ja
Publication of JPH022527B2 publication Critical patent/JPH022527B2/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
    • G01M3/243—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 for pipes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
JP3600083A 1983-03-07 1983-03-07 漏水検出装置 Granted JPS59162433A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3600083A JPS59162433A (ja) 1983-03-07 1983-03-07 漏水検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3600083A JPS59162433A (ja) 1983-03-07 1983-03-07 漏水検出装置

Publications (2)

Publication Number Publication Date
JPS59162433A JPS59162433A (ja) 1984-09-13
JPH022527B2 true JPH022527B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-01-18

Family

ID=12457517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3600083A Granted JPS59162433A (ja) 1983-03-07 1983-03-07 漏水検出装置

Country Status (1)

Country Link
JP (1) JPS59162433A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212757A (ja) * 1985-03-18 1986-09-20 Ishikawajima Harima Heavy Ind Co Ltd 内燃機関の異常監視装置
JP6370725B2 (ja) * 2015-02-02 2018-08-08 株式会社東芝 漏水判定のための波形データ収集装置、漏水判定装置、漏水判定システム、およびプログラム
JP2022149893A (ja) * 2021-03-25 2022-10-07 東邦瓦斯株式会社 電池式センサを用いた異常検知装置

Also Published As

Publication number Publication date
JPS59162433A (ja) 1984-09-13

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