DE2162708C3 - - Google Patents
Info
- Publication number
- DE2162708C3 DE2162708C3 DE19712162708 DE2162708A DE2162708C3 DE 2162708 C3 DE2162708 C3 DE 2162708C3 DE 19712162708 DE19712162708 DE 19712162708 DE 2162708 A DE2162708 A DE 2162708A DE 2162708 C3 DE2162708 C3 DE 2162708C3
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- signal
- voltage
- amplifier
- gas
- 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
- 230000008859 change Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 230000003111 delayed effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004237 Ponceau 6R Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- 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
- G01M3/2815—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 using pressure measurements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/30—Inspecting, measuring or testing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712167142 DE2167142C2 (de) | 1970-12-30 | 1971-12-17 | Anordnung zur Übertragung von Daten |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10266170A | 1970-12-30 | 1970-12-30 | |
| US19632771A | 1971-11-08 | 1971-11-08 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2162708A1 DE2162708A1 (de) | 1972-07-27 |
| DE2162708B2 DE2162708B2 (de) | 1980-02-07 |
| DE2162708C3 true DE2162708C3 (enExample) | 1980-09-25 |
Family
ID=26799605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712162708 Granted DE2162708B2 (de) | 1970-12-30 | 1971-12-17 | Verfahren und Anordnung zur Feststellung eines in einer ein Gas unter Druck enthaltenden Rohrleitung auftre tenden Risses oder Bruches |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5528009B1 (enExample) |
| CA (1) | CA963143A (enExample) |
| DE (1) | DE2162708B2 (enExample) |
| GB (1) | GB1374797A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677928B (zh) * | 2023-08-03 | 2023-10-10 | 苏芯物联技术(南京)有限公司 | 一种焊接保护气管道漏气智能检测方法 |
-
1971
- 1971-12-06 GB GB5656471A patent/GB1374797A/en not_active Expired
- 1971-12-17 DE DE19712162708 patent/DE2162708B2/de active Granted
- 1971-12-21 CA CA130,756A patent/CA963143A/en not_active Expired
- 1971-12-27 JP JP10560771A patent/JPS5528009B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5528009B1 (enExample) | 1980-07-24 |
| DE2162708A1 (de) | 1972-07-27 |
| GB1374797A (en) | 1974-11-20 |
| DE2162708B2 (de) | 1980-02-07 |
| CA963143A (en) | 1975-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| OI | Miscellaneous see part 1 | ||
| OI | Miscellaneous see part 1 | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |