GB1069971A - Improvements in or relating to acoustic delay lines - Google Patents

Improvements in or relating to acoustic delay lines

Info

Publication number
GB1069971A
GB1069971A GB2870563A GB2870563A GB1069971A GB 1069971 A GB1069971 A GB 1069971A GB 2870563 A GB2870563 A GB 2870563A GB 2870563 A GB2870563 A GB 2870563A GB 1069971 A GB1069971 A GB 1069971A
Authority
GB
United Kingdom
Prior art keywords
disc
radius
periphery
section
convergent
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
GB2870563A
Inventor
Charles Fountain Brockelsby
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB2870563A priority Critical patent/GB1069971A/en
Priority to DEN25269A priority patent/DE1201501B/en
Priority to FR982314A priority patent/FR1401102A/en
Publication of GB1069971A publication Critical patent/GB1069971A/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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

1,069,971. Acoustic delay lines. MULLARD Ltd. Sept. 23, 1964 [July 19, 1963], No. 28705/63. Heading H3U. In a delay line formed by successive reflections of an acoustic beam in a glass disc the beam is given a convergent-divergent form in its several traverses of the disc by injecting it into the disc from a curved surface having a radius of curvature equal to twice the disc radius. In the embodiment shown in Fig. 8 a transmitter transducer 9 is secured, to a flat face of the disc and directs a plane wave to an opposite section A, A<SP>1</SP> of the disc periphery having a radius 2R where R equals the disc radius. The convergent-divergent beam reflected by this section AA<SP>1</SP> strikes the disc periphery on the opposite side as denoted by the dash lines, the centre line of the beam denoted by solid lines striKing the disc periphery at successive points B, C, D, E, F. The beam reflected from F strikes a further section G, G<SP>1</SP> of the disc periphery having a radius 2R where it is reconverted into parallel rays having a plane wave front, the beam from G, G<SP>1</SP> being received by a transducer 10. The transducers 9, 10 are lead zirconate titanate ceramic poled for shear waves with particle motion normal to the plane of the paper.
GB2870563A 1963-07-19 1963-07-19 Improvements in or relating to acoustic delay lines Expired GB1069971A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2870563A GB1069971A (en) 1963-07-19 1963-07-19 Improvements in or relating to acoustic delay lines
DEN25269A DE1201501B (en) 1963-07-19 1964-07-18 Sonic or ultrasonic delay line
FR982314A FR1401102A (en) 1963-07-19 1964-07-20 Delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2870563A GB1069971A (en) 1963-07-19 1963-07-19 Improvements in or relating to acoustic delay lines

Publications (1)

Publication Number Publication Date
GB1069971A true GB1069971A (en) 1967-05-24

Family

ID=10279787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2870563A Expired GB1069971A (en) 1963-07-19 1963-07-19 Improvements in or relating to acoustic delay lines

Country Status (2)

Country Link
DE (1) DE1201501B (en)
GB (1) GB1069971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179190A1 (en) * 1972-04-06 1973-11-16 Mitsumi Electric Co Ltd

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273085B (en) * 1965-12-16 1968-07-18 Telefunken Patent Electromechanical delay arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179190A1 (en) * 1972-04-06 1973-11-16 Mitsumi Electric Co Ltd

Also Published As

Publication number Publication date
DE1201501B (en) 1965-09-23

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