JPS5774636A - Water leak detecting method - Google Patents

Water leak detecting method

Info

Publication number
JPS5774636A
JPS5774636A JP15017380A JP15017380A JPS5774636A JP S5774636 A JPS5774636 A JP S5774636A JP 15017380 A JP15017380 A JP 15017380A JP 15017380 A JP15017380 A JP 15017380A JP S5774636 A JPS5774636 A JP S5774636A
Authority
JP
Japan
Prior art keywords
water
pressure
water leak
electricity converter
signal
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
JP15017380A
Other languages
Japanese (ja)
Other versions
JPH0321859B2 (en
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15017380A priority Critical patent/JPS5774636A/en
Publication of JPS5774636A publication Critical patent/JPS5774636A/en
Publication of JPH0321859B2 publication Critical patent/JPH0321859B2/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

Abstract

PURPOSE:To enable the central management of a water leak in a water pipe, by a method wherein a water leak detector, incorporating a pressure-electricity converter, is monolithically united with a water meter for the installation, and the detecting signal is connected to a common telephone circuit via a coupling circuit. CONSTITUTION:A pressure-electricity converter 5 is mounted at the inlet 2 of a water meter, and a water leak signal from a water meter 15, into which a water leak decision circuit 7 and the pressure-electricity converter 5 are built, is connected to a telephone circuit via a coupling circuit 6. A water feed pipe 13 branches from a distribution pipe 11 through a corporation cock 12, and is connected to the water meter 15 through a stop cock 14. The pressure-electricity converter, a small- sized long-life cell, and a water leak decision circuit are built into the water 15, and an signal from a terminal 9 is inputted to a telephone circuit 8 through a signal line 17. This constitution permits the central management of a large number of the water meters.
JP15017380A 1980-10-28 1980-10-28 Water leak detecting method Granted JPS5774636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15017380A JPS5774636A (en) 1980-10-28 1980-10-28 Water leak detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15017380A JPS5774636A (en) 1980-10-28 1980-10-28 Water leak detecting method

Publications (2)

Publication Number Publication Date
JPS5774636A true JPS5774636A (en) 1982-05-10
JPH0321859B2 JPH0321859B2 (en) 1991-03-25

Family

ID=15491091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15017380A Granted JPS5774636A (en) 1980-10-28 1980-10-28 Water leak detecting method

Country Status (1)

Country Link
JP (1) JPS5774636A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072812A1 (en) * 2010-12-03 2012-06-07 Emstec Gmbh & Co. Kg Leak detection system
JP2013068506A (en) * 2011-09-22 2013-04-18 Hochiki Corp Water usage monitoring system and water usage monitoring device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138785A (en) * 1977-05-11 1978-12-04 Nippon Kokan Kk Leak detecting method in liquid transferring pipe lines
JPS5583831A (en) * 1978-12-20 1980-06-24 Fuji Sangyo Kk Leak inspection object pipe line search method of liquid conduit line and its unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138785A (en) * 1977-05-11 1978-12-04 Nippon Kokan Kk Leak detecting method in liquid transferring pipe lines
JPS5583831A (en) * 1978-12-20 1980-06-24 Fuji Sangyo Kk Leak inspection object pipe line search method of liquid conduit line and its unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072812A1 (en) * 2010-12-03 2012-06-07 Emstec Gmbh & Co. Kg Leak detection system
JP2013068506A (en) * 2011-09-22 2013-04-18 Hochiki Corp Water usage monitoring system and water usage monitoring device

Also Published As

Publication number Publication date
JPH0321859B2 (en) 1991-03-25

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