JPS55103443A - Sound record type hydrostat - Google Patents
Sound record type hydrostatInfo
- 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
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
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)
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 |
-
1979
- 1979-02-02 JP JP1160079A patent/JPS55103443A/en active Granted
Cited By (3)
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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