GB741319A - Improvements in or relating to magneto-strictive oscillators - Google Patents

Improvements in or relating to magneto-strictive oscillators

Info

Publication number
GB741319A
GB741319A GB708553A GB708553A GB741319A GB 741319 A GB741319 A GB 741319A GB 708553 A GB708553 A GB 708553A GB 708553 A GB708553 A GB 708553A GB 741319 A GB741319 A GB 741319A
Authority
GB
United Kingdom
Prior art keywords
cross
piece
portions
core
laminations
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
GB708553A
Inventor
Henry Joseph Round
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.)
Marconi Sounding Device Co Ltd
Original Assignee
Marconi Sounding Device Co 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 Marconi Sounding Device Co Ltd filed Critical Marconi Sounding Device Co Ltd
Priority to GB708553A priority Critical patent/GB741319A/en
Publication of GB741319A publication Critical patent/GB741319A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Treatment Devices (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

741,319. Reciprocating electric motors. MARCONI SOUNDING DEVICE CO., Ltd. March 19, 1954 [March 13, 1953], No. 7085/53. Class 35. [Also in Group XXXIX] The core of a magneto-strictive transducer suitable for subaqueous echo sounding, comprises a stack of laminations each having at least two stems L, Ll and an integral radiating cross-piece E, the mass and elasticity of the portions of the crosspiece C<SP>1</SP>, C<SP>2</SP> and C1<SP>1</SP>, C2<SP>1</SP> on either side of a stem being so chosen that the core exhibits only a single resonant frequency. The free-ended cross-piece portions C<SP>1</SP>, C1<SP>1</SP> may have different elastic constants or smaller dimensions than the portions C<SP>2</SP>, C2<SP>1</SP> linking adjacent stems. In the arrangement shown in Fig. 4, the rear faces of the cross-piece portions C<SP>1</SP>, C1<SP>1</SP> are outwardly tapered. Alternatively, a rectangular cross-piece, Fig. 5, may have a saw cut B in an intermediate position between the limbs which extends to about 0.6 of the cross-piece depth. This feature may be applied to cores having cross-pieces at both ends, Fig. 6 (not shown). A modified core may comprise a composite stack of T- and #-shaped laminations, the T-shaped laminations being arranged in pairs with their cross-pieces almost abutting.
GB708553A 1953-03-13 1953-03-13 Improvements in or relating to magneto-strictive oscillators Expired GB741319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB708553A GB741319A (en) 1953-03-13 1953-03-13 Improvements in or relating to magneto-strictive oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB708553A GB741319A (en) 1953-03-13 1953-03-13 Improvements in or relating to magneto-strictive oscillators

Publications (1)

Publication Number Publication Date
GB741319A true GB741319A (en) 1955-11-30

Family

ID=9826324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB708553A Expired GB741319A (en) 1953-03-13 1953-03-13 Improvements in or relating to magneto-strictive oscillators

Country Status (1)

Country Link
GB (1) GB741319A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639861A (en) * 1967-02-10 1972-02-01 Int Standard Electric Corp Magnetostrictive filter and strain gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639861A (en) * 1967-02-10 1972-02-01 Int Standard Electric Corp Magnetostrictive filter and strain gauge

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