DE3382647T2 - Ultraschallsender. - Google Patents
Ultraschallsender.Info
- Publication number
- DE3382647T2 DE3382647T2 DE8888108061T DE3382647T DE3382647T2 DE 3382647 T2 DE3382647 T2 DE 3382647T2 DE 8888108061 T DE8888108061 T DE 8888108061T DE 3382647 T DE3382647 T DE 3382647T DE 3382647 T2 DE3382647 T2 DE 3382647T2
- Authority
- DE
- Germany
- Prior art keywords
- leaks
- detected
- audio signal
- transducer
- ultrasonic
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88108061A EP0303776B1 (de) | 1983-07-14 | 1983-07-14 | Ultraschallsender |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3382647D1 DE3382647D1 (de) | 1993-01-28 |
DE3382647T2 true DE3382647T2 (de) | 1993-04-22 |
Family
ID=8198987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888108061T Expired - Fee Related DE3382647T2 (de) | 1983-07-14 | 1983-07-14 | Ultraschallsender. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0303776B1 (de) |
AT (1) | ATE83558T1 (de) |
DE (1) | DE3382647T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0298226A3 (de) * | 1983-07-14 | 1991-04-10 | Ue Systems Inc. | Ultraschallwandler |
US5351527A (en) * | 1992-12-04 | 1994-10-04 | Trw Vehicle Safety Systems Inc. | Method and apparatus for testing fluid pressure in a sealed vessel |
US9823158B2 (en) | 2014-01-16 | 2017-11-21 | Radiaulics, Inc. | Multi-function ultrasonic sound generator with an audio transducer for human hearing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3264864A (en) * | 1962-03-01 | 1966-08-09 | American Gas Ass | Apparatus for pinpointing leaks in buried pipes |
US3222635A (en) * | 1962-11-13 | 1965-12-07 | Hewlett Packard Co | Ultrasonic vibration detector |
US3308424A (en) * | 1963-12-16 | 1967-03-07 | Hewlett Packard Co | Vibration detection |
GB1121824A (en) * | 1965-12-14 | 1968-07-31 | Exxon Research Engineering Co | Pipeline leak detector |
US4279019A (en) * | 1979-05-15 | 1981-07-14 | California Institute Of Technology | Method and apparatus for delay analysis of energy transmitted through a medium |
US4391142A (en) * | 1980-06-10 | 1983-07-05 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Frequency tracked gated pulse technique for ultrasonic frequency |
-
1983
- 1983-07-14 DE DE8888108061T patent/DE3382647T2/de not_active Expired - Fee Related
- 1983-07-14 AT AT88108061T patent/ATE83558T1/de not_active IP Right Cessation
- 1983-07-14 EP EP88108061A patent/EP0303776B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE83558T1 (de) | 1993-01-15 |
EP0303776A2 (de) | 1989-02-22 |
EP0303776A3 (en) | 1989-03-15 |
EP0303776B1 (de) | 1992-12-16 |
DE3382647D1 (de) | 1993-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |