GB823846A - Improvements in or relating to ultrasonic delay lines - Google Patents

Improvements in or relating to ultrasonic delay lines

Info

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
Application number
GB2995455A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2995455A priority Critical patent/GB823846A/en
Publication of GB823846A publication Critical patent/GB823846A/en
Expired legal-status Critical Current

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.
GB2995455A 1955-10-20 1955-10-20 Improvements in or relating to ultrasonic delay lines Expired GB823846A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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