GB1074151A - Acoustic delay line - Google Patents

Acoustic delay line

Info

Publication number
GB1074151A
GB1074151A GB2817064A GB2817064A GB1074151A GB 1074151 A GB1074151 A GB 1074151A GB 2817064 A GB2817064 A GB 2817064A GB 2817064 A GB2817064 A GB 2817064A GB 1074151 A GB1074151 A GB 1074151A
Authority
GB
United Kingdom
Prior art keywords
wire
pads
pad
coils
delay line
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
GB2817064A
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.)
Friden Inc
Original Assignee
Friden Inc
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 Friden Inc filed Critical Friden Inc
Publication of GB1074151A publication Critical patent/GB1074151A/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)
  • Joining Of Glass To Other Materials (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1,074,151. Acoustic delay lines. FRIDEN Inc. July 8, 1964 [Oct. 28, 1963], No. 28170/64. Heading H3U. A delay line includes a spirally coiled wire 10, e.g. of nickel-iron alloy, connected at its ends to magneto-strictive transducers and supported between its ends by twelve pads 22. Each pad has a faineant surface engaging. the wire, this surface being provided by a striate material, this material either constituting the pad as a whole or a surface layer on the pad. Thus the pads do not affect the transmission of an elastic torsional wave along the wire. Each transducer comprises two magnetostrictive ribbons 12 welded to the wire 10 at diametrically opposite points of its cylindrical surface, the ribbons extending through coils 14 to a rubbor clamp 18 and being biased by a magnet 20. A signal applied to the coils at one end of the wire causes one ribbon 12 to expand and the other to contract whereby a torsional wave is transmitted along the wire to the other transducer. Alternate pads 22 are fastened to the base 8 and lie under the wire, the other being supported over the wire by bars 24 adjustable by screws 26. The pads 22 may have a flat surface or be grooved as in Fig. 2 and may consist of balsa wood or glass fibrous filaments, the striµ of the wood or glass lying parallel to the direction of the wire 10.
GB2817064A 1963-10-28 1964-07-08 Acoustic delay line Expired GB1074151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31919763A 1963-10-28 1963-10-28

Publications (1)

Publication Number Publication Date
GB1074151A true GB1074151A (en) 1967-06-28

Family

ID=23241253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2817064A Expired GB1074151A (en) 1963-10-28 1964-07-08 Acoustic delay line

Country Status (3)

Country Link
DE (1) DE1491348B1 (en)
GB (1) GB1074151A (en)
NL (1) NL6408543A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB667218A (en) * 1949-09-10 1952-02-27 Ferranti Ltd Improvements relating to acoustic delay-lines
NL207718A (en) * 1955-06-06
US2861248A (en) * 1956-08-22 1958-11-18 Sperry Rand Corp Signal delay means
FR1199735A (en) * 1957-07-09 1959-12-16 Sunvic Controls Ltd Improvements relating to magneto-strictive delay lines

Also Published As

Publication number Publication date
NL6408543A (en) 1965-04-29
DE1491348B1 (en) 1971-10-28

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