JPS55103443A - Sound record type hydrostat - Google Patents

Sound record type hydrostat

Info

Publication number
JPS55103443A
JPS55103443A JP1160079A JP1160079A JPS55103443A JP S55103443 A JPS55103443 A JP S55103443A JP 1160079 A JP1160079 A JP 1160079A JP 1160079 A JP1160079 A JP 1160079A JP S55103443 A JPS55103443 A JP S55103443A
Authority
JP
Japan
Prior art keywords
level
detection
frequency
controller
bfpf
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
JP1160079A
Other languages
Japanese (ja)
Other versions
JPS6130700B2 (en
Inventor
Yukio Arai
Haruyoshi Matsubara
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.)
Denshi Seigiyo Guruupu Kk
DENSHI SEIGYO GROUP KK
TOKYO PREFECTURE
TOUKIYOUTO
Original Assignee
Denshi Seigiyo Guruupu Kk
DENSHI SEIGYO GROUP KK
TOKYO PREFECTURE
TOUKIYOUTO
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 Denshi Seigiyo Guruupu Kk, DENSHI SEIGYO GROUP KK, TOKYO PREFECTURE, TOUKIYOUTO filed Critical Denshi Seigiyo Guruupu Kk
Priority to JP1160079A priority Critical patent/JPS55103443A/en
Publication of JPS55103443A publication Critical patent/JPS55103443A/en
Publication of JPS6130700B2 publication Critical patent/JPS6130700B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: To secure the easy and assured detection for the leak of the city water by making the ground vibration sound detection signal pass through the level controller and plural number of the BFP and then lighting up the light emitting element in accordance with the frequency and the level.
CONSTITUTION: The electric signals according to the ground vibrations detected by pickup 11 are applied to variable level controller 13 as well as to BFPF1, F2... the passing frequency bands of which are shifted in sequence. When the control is given to controller 13 to increase the output level sequentially, LEDL1, L2... corresponding to BFPF1, F2... are lit up in accordance with the frequency component of high level of the detection electric signal. Thus the analysis can be carried out easily for the level and frequency of the vibration detection signal, and as a result the leak of the city water and its state can be detected assuredly at the site. The detection output of pickup 11 can also be recorded to magnetic sound recorder for preservation.
COPYRIGHT: (C)1980,JPO&Japio
JP1160079A 1979-02-02 1979-02-02 Sound record type hydrostat Granted JPS55103443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1160079A JPS55103443A (en) 1979-02-02 1979-02-02 Sound record type hydrostat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1160079A JPS55103443A (en) 1979-02-02 1979-02-02 Sound record type hydrostat

Publications (2)

Publication Number Publication Date
JPS55103443A true JPS55103443A (en) 1980-08-07
JPS6130700B2 JPS6130700B2 (en) 1986-07-15

Family

ID=11782389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1160079A Granted JPS55103443A (en) 1979-02-02 1979-02-02 Sound record type hydrostat

Country Status (1)

Country Link
JP (1) JPS55103443A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172024A (en) * 1984-12-13 1986-08-02 Caterpillar Mitsubishi Ltd Gas leakage detection and recording system
JP3186707U (en) * 2013-05-27 2013-10-24 株式会社日本ウォーターソリューション Leak checker with recording function
JP2014134051A (en) * 2013-01-11 2014-07-24 Kajima Corp Method for measuring air content of grout material subjected to upward construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172024A (en) * 1984-12-13 1986-08-02 Caterpillar Mitsubishi Ltd Gas leakage detection and recording system
JP2014134051A (en) * 2013-01-11 2014-07-24 Kajima Corp Method for measuring air content of grout material subjected to upward construction
JP3186707U (en) * 2013-05-27 2013-10-24 株式会社日本ウォーターソリューション Leak checker with recording function

Also Published As

Publication number Publication date
JPS6130700B2 (en) 1986-07-15

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