JPS632047B2 - - Google Patents
Info
- Publication number
- JPS632047B2 JPS632047B2 JP6124980A JP6124980A JPS632047B2 JP S632047 B2 JPS632047 B2 JP S632047B2 JP 6124980 A JP6124980 A JP 6124980A JP 6124980 A JP6124980 A JP 6124980A JP S632047 B2 JPS632047 B2 JP S632047B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- flow rate
- circuit
- count value
- transmitter
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 28
- 238000000034 method Methods 0.000 description 17
- 238000004891 communication Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Pipeline Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6124980A JPS56157831A (en) | 1980-05-10 | 1980-05-10 | Detecting method of fluid leakage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6124980A JPS56157831A (en) | 1980-05-10 | 1980-05-10 | Detecting method of fluid leakage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56157831A JPS56157831A (en) | 1981-12-05 |
JPS632047B2 true JPS632047B2 (US06265458-20010724-C00056.png) | 1988-01-16 |
Family
ID=13165764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6124980A Granted JPS56157831A (en) | 1980-05-10 | 1980-05-10 | Detecting method of fluid leakage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56157831A (US06265458-20010724-C00056.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0277552U (US06265458-20010724-C00056.png) * | 1988-11-30 | 1990-06-14 | ||
JPH0429770U (US06265458-20010724-C00056.png) * | 1990-07-05 | 1992-03-10 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK179007B1 (en) * | 2016-04-12 | 2017-08-07 | Kmmt Aps | Method and apparatus for liquid leak control |
KR20180078631A (ko) * | 2016-12-30 | 2018-07-10 | 주식회사 유솔 | 수압 측정기 압력 전달용 어댑터 및 이를 이용한 누수 감시 시스템 |
-
1980
- 1980-05-10 JP JP6124980A patent/JPS56157831A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0277552U (US06265458-20010724-C00056.png) * | 1988-11-30 | 1990-06-14 | ||
JPH0429770U (US06265458-20010724-C00056.png) * | 1990-07-05 | 1992-03-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS56157831A (en) | 1981-12-05 |