JPS61213647A - 漏水検出装置 - Google Patents

漏水検出装置

Info

Publication number
JPS61213647A
JPS61213647A JP5340285A JP5340285A JPS61213647A JP S61213647 A JPS61213647 A JP S61213647A JP 5340285 A JP5340285 A JP 5340285A JP 5340285 A JP5340285 A JP 5340285A JP S61213647 A JPS61213647 A JP S61213647A
Authority
JP
Japan
Prior art keywords
signal
circuit
water
time integral
integral value
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.)
Granted
Application number
JP5340285A
Other languages
English (en)
Japanese (ja)
Other versions
JPH023933B2 (enrdf_load_stackoverflow
Inventor
Tadashi Saito
斎藤　粛
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
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP5340285A priority Critical patent/JPS61213647A/ja
Publication of JPS61213647A publication Critical patent/JPS61213647A/ja
Publication of JPH023933B2 publication Critical patent/JPH023933B2/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)
JP5340285A 1985-03-19 1985-03-19 漏水検出装置 Granted JPS61213647A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5340285A JPS61213647A (ja) 1985-03-19 1985-03-19 漏水検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5340285A JPS61213647A (ja) 1985-03-19 1985-03-19 漏水検出装置

Publications (2)

Publication Number Publication Date
JPS61213647A true JPS61213647A (ja) 1986-09-22
JPH023933B2 JPH023933B2 (enrdf_load_stackoverflow) 1990-01-25

Family

ID=12941832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5340285A Granted JPS61213647A (ja) 1985-03-19 1985-03-19 漏水検出装置

Country Status (1)

Country Link
JP (1) JPS61213647A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958296A (en) * 1987-07-22 1990-09-18 Kabushiki Kaisha Toshiba Water-leakage detecting apparatus and method which are little influenced by noise
JP2006317172A (ja) * 2005-05-10 2006-11-24 Toshiba Corp 漏水検出装置
JP2006349572A (ja) * 2005-06-17 2006-12-28 Toshiba Corp 漏水判定装置及び方法
JP6325147B1 (ja) * 2017-04-28 2018-05-16 日本水道管路株式会社 閾値設定方法、漏水監視装置およびプログラム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958296A (en) * 1987-07-22 1990-09-18 Kabushiki Kaisha Toshiba Water-leakage detecting apparatus and method which are little influenced by noise
JP2006317172A (ja) * 2005-05-10 2006-11-24 Toshiba Corp 漏水検出装置
JP2006349572A (ja) * 2005-06-17 2006-12-28 Toshiba Corp 漏水判定装置及び方法
JP6325147B1 (ja) * 2017-04-28 2018-05-16 日本水道管路株式会社 閾値設定方法、漏水監視装置およびプログラム
JP2018189435A (ja) * 2017-04-28 2018-11-29 日本水道管路株式会社 閾値設定方法、漏水監視装置およびプログラム

Also Published As

Publication number Publication date
JPH023933B2 (enrdf_load_stackoverflow) 1990-01-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term