JPH0522171B2 - - Google Patents

Info

Publication number
JPH0522171B2
JPH0522171B2 JP60063828A JP6382885A JPH0522171B2 JP H0522171 B2 JPH0522171 B2 JP H0522171B2 JP 60063828 A JP60063828 A JP 60063828A JP 6382885 A JP6382885 A JP 6382885A JP H0522171 B2 JPH0522171 B2 JP H0522171B2
Authority
JP
Japan
Prior art keywords
water
signal data
data
sound
noise
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
JP60063828A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61223628A (ja
Inventor
Toshinori Watanabe
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 JP6382885A priority Critical patent/JPS61223628A/ja
Publication of JPS61223628A publication Critical patent/JPS61223628A/ja
Publication of JPH0522171B2 publication Critical patent/JPH0522171B2/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)
  • Pipeline Systems (AREA)
JP6382885A 1985-03-29 1985-03-29 漏水検知装置 Granted JPS61223628A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6382885A JPS61223628A (ja) 1985-03-29 1985-03-29 漏水検知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6382885A JPS61223628A (ja) 1985-03-29 1985-03-29 漏水検知装置

Publications (2)

Publication Number Publication Date
JPS61223628A JPS61223628A (ja) 1986-10-04
JPH0522171B2 true JPH0522171B2 (enrdf_load_html_response) 1993-03-26

Family

ID=13240607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6382885A Granted JPS61223628A (ja) 1985-03-29 1985-03-29 漏水検知装置

Country Status (1)

Country Link
JP (1) JPS61223628A (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013213535A (ja) * 2012-04-02 2013-10-17 Sekisui Chem Co Ltd 配管網の監視装置
WO2016152131A1 (ja) * 2015-03-25 2016-09-29 日本電気株式会社 漏洩検知装置、漏洩検知システム、漏洩検知方法及びコンピュータ読み取り可能記録媒体
WO2017199455A1 (ja) * 2016-05-19 2017-11-23 株式会社 東芝 漏水判定装置及び漏水判定方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6425025A (en) * 1987-07-22 1989-01-27 Toshiba Corp Detecting apparatus of leakage of water
US5231866A (en) * 1991-05-28 1993-08-03 Dnv Industrial Services, Inc. Acoustic leak detection system
JP5769137B2 (ja) * 2012-10-03 2015-08-26 日本電気株式会社 上水道管の振動検知装置及び上水道管の振動検知方法
DK2912416T3 (en) * 2012-10-26 2018-09-10 Mueller Int Llc Detecting Leaks in a Fluid Distribution System

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610226A (en) * 1979-07-06 1981-02-02 Mitsubishi Electric Corp Water leakage detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013213535A (ja) * 2012-04-02 2013-10-17 Sekisui Chem Co Ltd 配管網の監視装置
WO2016152131A1 (ja) * 2015-03-25 2016-09-29 日本電気株式会社 漏洩検知装置、漏洩検知システム、漏洩検知方法及びコンピュータ読み取り可能記録媒体
JPWO2016152131A1 (ja) * 2015-03-25 2018-01-18 日本電気株式会社 漏洩検知装置、漏洩検知システム、漏洩検知方法及びコンピュータ読み取り可能記録媒体
WO2017199455A1 (ja) * 2016-05-19 2017-11-23 株式会社 東芝 漏水判定装置及び漏水判定方法
JPWO2017199455A1 (ja) * 2016-05-19 2019-02-21 株式会社東芝 漏水判定装置及び漏水判定方法

Also Published As

Publication number Publication date
JPS61223628A (ja) 1986-10-04

Similar Documents

Publication Publication Date Title
US5164703A (en) Audio intrusion detection system
JPS55138634A (en) Fault diagnosis apparatus of apparatus
AU4637393A (en) Process for detecting fouling of an axial compressor
JPH0522171B2 (enrdf_load_html_response)
US4718097A (en) Method and apparatus for determining the endpoints of a speech utterance
JPH052934B2 (enrdf_load_html_response)
JPS5653422A (en) Diagnosis device for bearing abnormality
JPH0219776A (ja) 負荷時タップ切換器監視装置
JPH02234298A (ja) 設備故障検出装置
JP4427911B2 (ja) 感震器
US4414534A (en) Radio frequency detection circuitry having noise discrimination capability
KR20010027159A (ko) 반도체 제조 장치의 진공 펌프의 이상 상태를 감지하기 위한 장치
US6378536B1 (en) Ultrasonic cleaning device fault detector
JPH06174580A (ja) 内燃機関の燃焼ガス漏洩検知装置
EP1093220B1 (en) Method of anomalous offset detection and circuit
JPH11316000A (ja) 漏水音検出センサの取付構造
JPH01119732A (ja) 漏水検出装置
JPH01199131A (ja) 漏水検出装置
JPS5810623A (ja) 漏水検出装置
JPH0337541A (ja) 弁および管のリーク原因判別方法およびその判別装置
JPS59150320A (ja) 漏水検出装置
JPH023933B2 (enrdf_load_html_response)
JP2887443B2 (ja) 漏洩発生判別方法
KR970019346A (ko) 복합영상기기의 아날로그/디지탈 변환 장치 및 그 방법
JPH0988629A (ja) 燃焼振動監視装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term