JPS5610226A - Water leakage detector - Google Patents

Water leakage detector

Info

Publication number
JPS5610226A
JPS5610226A JP8626279A JP8626279A JPS5610226A JP S5610226 A JPS5610226 A JP S5610226A JP 8626279 A JP8626279 A JP 8626279A JP 8626279 A JP8626279 A JP 8626279A JP S5610226 A JPS5610226 A JP S5610226A
Authority
JP
Japan
Prior art keywords
waveform
sound
converter
water leakage
piping
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.)
Pending
Application number
JP8626279A
Other languages
Japanese (ja)
Inventor
Takahisa Goto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8626279A priority Critical patent/JPS5610226A/en
Publication of JPS5610226A publication Critical patent/JPS5610226A/en
Pending legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: To detect a water leakage accurately and early by mounting a sound detector (microphone) properly on each piping.
CONSTITUTION: A sound generated on a piping 1 is collected on a sound detector 4, converted into an electric signal through a sound-current converter 5 and then sent to a waveform converter 7 through a transmission line 6. The waveform converter 7 converts an electric signal converted through the sound-current converter 5 into a rectangular wave. A measuring wave led from the waveform converter 7 and a normal signal with a waveform setter 3 are subjected to comparison on a waveform comparator 9 for height, width and period of each waveform, and the gap is delivered to a discriminator 10. Where the gap between the two exceeds a tolerance, the discriminator 10 lights up an alarm lamp 11 to indicate a water leakage on the piping 1.
COPYRIGHT: (C)1981,JPO&Japio
JP8626279A 1979-07-06 1979-07-06 Water leakage detector Pending JPS5610226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8626279A JPS5610226A (en) 1979-07-06 1979-07-06 Water leakage detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8626279A JPS5610226A (en) 1979-07-06 1979-07-06 Water leakage detector

Publications (1)

Publication Number Publication Date
JPS5610226A true JPS5610226A (en) 1981-02-02

Family

ID=13881896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8626279A Pending JPS5610226A (en) 1979-07-06 1979-07-06 Water leakage detector

Country Status (1)

Country Link
JP (1) JPS5610226A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223628A (en) * 1985-03-29 1986-10-04 Toshiba Corp Detector for leak of water
JP2010503851A (en) * 2006-09-15 2010-02-04 ヘリオツト・ワツト・ユニバーシテイ Method and apparatus for detecting sealing defects in building drainage and ventilation systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223628A (en) * 1985-03-29 1986-10-04 Toshiba Corp Detector for leak of water
JPH0522171B2 (en) * 1985-03-29 1993-03-26 Tokyo Shibaura Electric Co
JP2010503851A (en) * 2006-09-15 2010-02-04 ヘリオツト・ワツト・ユニバーシテイ Method and apparatus for detecting sealing defects in building drainage and ventilation systems

Similar Documents

Publication Publication Date Title
JPS5773620A (en) Method and device for detecting fault
JPS53114608A (en) Defect detector
JPS5478191A (en) Detecting method of defect of rice grains
JPS5610226A (en) Water leakage detector
JPS5353918A (en) Detecting method for vertical synchronizing signal and its circuit
JPS5449163A (en) Detecting device
JPS5356072A (en) Method and apparatus for detection of corona discharge
JPS5434699A (en) Urgento display system
JPS5233788A (en) Signal identification apparatus in ae signal position detection appara tus
JPS5427462A (en) Plate end detector
JPS51132539A (en) Brake monitor
JPS5418788A (en) Method and apparatus for detecting of ultrasonic wave signals
JPS542170A (en) Vibration supervisory apparatus
JPS55114031A (en) Detector for pulse absence
JPS5422726A (en) Paper identifying method
JPS5365753A (en) Proximity distance detector
JPS5390707A (en) Detecting system for circuit fault
JPS5422078A (en) Command circuit
JPS5364087A (en) Can tester
JPS5611368A (en) Signal lamp disconnection detecting unit
JPS5364742A (en) Detection method of abnormal portion in electric network
JPS5397811A (en) Detector for abnormality in synchronism
JPS54129294A (en) Detecting method and device of sodium-water reaction
JPS5370473A (en) Partial discharge measuring apparatus
JPS5359875A (en) Abnormal point indicating method for insulated wire