GB823846A - Improvements in or relating to ultrasonic delay lines - Google Patents
Improvements in or relating to ultrasonic delay linesInfo
- Publication number
- GB823846A GB823846A GB2995455A GB2995455A GB823846A GB 823846 A GB823846 A GB 823846A GB 2995455 A GB2995455 A GB 2995455A GB 2995455 A GB2995455 A GB 2995455A GB 823846 A GB823846 A GB 823846A
- Authority
- GB
- United Kingdom
- Prior art keywords
- level
- prism
- ultrasonic delay
- transducer
- energy
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/36—Time-delay networks with non-adjustable delay time
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
823,846. Ultrasonic delay lines. HAMMOND, V. J. Oct. 18, 1956 [Oct. 20, 1955], No. 29954/55. Class 40 (8). In a ultrasonic delay line, incorporating a polyhydral plate of acoustic wave-transmitting material, e.g. quartz, said plate being bounded by a number of parallel walls, energy is directed from the level of an input transducer 16 after surface reflections at that level to that of an output transducer 17, which subsequently picks up the energy after surface reflections at the latter level, by a reflecting means 18. The quartz body has parallel circumferential sides 1-14, Fig. 1 (not shown). Wave energy enters the body via crystal transducer 16 on side 3 and on reaching the prism 18 on side 12, which prism has mutually perpendicular reflecting faces 19, 20, is reflected to a lower level and retraces its path to side 3 where crystal transducer 17 converts it to an output signal at the latter level. A groove 15 filled with acoustic damping material, e.g. silver paint, may be provided between the two levels when these are formed integrally, and the prism 18 may be integral with said body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2995455A GB823846A (en) | 1955-10-20 | 1955-10-20 | Improvements in or relating to ultrasonic delay lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2995455A GB823846A (en) | 1955-10-20 | 1955-10-20 | Improvements in or relating to ultrasonic delay lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB823846A true GB823846A (en) | 1959-11-18 |
Family
ID=10299897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2995455A Expired GB823846A (en) | 1955-10-20 | 1955-10-20 | Improvements in or relating to ultrasonic delay lines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB823846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581247A (en) * | 1968-06-13 | 1971-05-25 | Andersen Lab Inc | Delay lines having nondispersive width-shear mode propagation characteristics and method of making same |
| US3794937A (en) * | 1972-04-20 | 1974-02-26 | Westinghouse Electric Corp | Folded path acoustic delay line and optical processor |
-
1955
- 1955-10-20 GB GB2995455A patent/GB823846A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581247A (en) * | 1968-06-13 | 1971-05-25 | Andersen Lab Inc | Delay lines having nondispersive width-shear mode propagation characteristics and method of making same |
| US3794937A (en) * | 1972-04-20 | 1974-02-26 | Westinghouse Electric Corp | Folded path acoustic delay line and optical processor |
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