JPS564914A - Magnetostriction transducer - Google Patents

Magnetostriction transducer

Info

Publication number
JPS564914A
JPS564914A JP7921179A JP7921179A JPS564914A JP S564914 A JPS564914 A JP S564914A JP 7921179 A JP7921179 A JP 7921179A JP 7921179 A JP7921179 A JP 7921179A JP S564914 A JPS564914 A JP S564914A
Authority
JP
Japan
Prior art keywords
conductor paths
wave mode
exciting
flowed
magnetic field
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.)
Pending
Application number
JP7921179A
Other languages
Japanese (ja)
Inventor
Norio Goto
Kiyoshi Muramori
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.)
Hitachi Ltd
Proterial Ltd
Original Assignee
Hitachi Ltd
Hitachi Metals 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 Hitachi Ltd, Hitachi Metals Ltd filed Critical Hitachi Ltd
Priority to JP7921179A priority Critical patent/JPS564914A/en
Publication of JPS564914A publication Critical patent/JPS564914A/en
Pending 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)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To reduce the cost while attaining miniaturization by exciting a single elastic wave in lateral wave mode, by arranging both conductor paths so that when electric currents are flowed through two conductor paths of a thin magnetostrictive plate in the same direction, the distribution of magnetic fields out of phase with each other will be obtained. CONSTITUTION:When an electric current is flowed from A1 of conductor path 12, a circular magnetic field is provided to alternate conductor paths 12 and 13. Since a bias magnetic field is applied in direcion +x, (x)-directional magnetostrictive values of parts A1-A6 and A1'-A6' of conductor paths 12 and 13 to position (x) change out of phase between surface side (a) and reverse side (b). As a result, exciting an elastic wave in longitudinal wave mode generated due to volume elasticity is sufficiently suppressed in magnetrostrictive plate 11 and only an elastic wave in lateral wave mode generated due to shift elasticity is excited. Therefore, device dimensions are reduced to about half as compared with a transducer that uses elastic waves in longitudinal wave mode, so that miniaturization can be attained.
JP7921179A 1979-06-25 1979-06-25 Magnetostriction transducer Pending JPS564914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7921179A JPS564914A (en) 1979-06-25 1979-06-25 Magnetostriction transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7921179A JPS564914A (en) 1979-06-25 1979-06-25 Magnetostriction transducer

Publications (1)

Publication Number Publication Date
JPS564914A true JPS564914A (en) 1981-01-19

Family

ID=13683596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7921179A Pending JPS564914A (en) 1979-06-25 1979-06-25 Magnetostriction transducer

Country Status (1)

Country Link
JP (1) JPS564914A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011002139A1 (en) * 2009-07-03 2011-01-06 Industry-Academic Cooperation Foundation, Yeungnam University Contact sh-guided-wave magnetostrictive transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011002139A1 (en) * 2009-07-03 2011-01-06 Industry-Academic Cooperation Foundation, Yeungnam University Contact sh-guided-wave magnetostrictive transducer
US8749101B2 (en) 2009-07-03 2014-06-10 Industry-Academic Cooperation Foundation, Yeungnam University Contact SH-guided-wave magnetostrictive transducer

Similar Documents

Publication Publication Date Title
CA2109700A1 (en) Electromagnetic actuator
JPS564914A (en) Magnetostriction transducer
JPS55112017A (en) Electrode of tuning fork type crystal oscillator
JPS5610724A (en) Elastic surface wave transducer
JPS55123222A (en) Electromechanical converter for elastic surface wave
JPS5613705A (en) Magnetic circuit using anisotropic magnet
JPS62224101A (en) Magnetostatic wave filter bank
US3281772A (en) Low frequency electromagnetic hydrophone
JPS5715519A (en) Elastic surface wave device
JPS5527769A (en) Elastic surface wave converter
JPS5453985A (en) Non-crystal mangetostriction transducer
JPS5721882A (en) Magnetic reluctance element
GB1452392A (en) Magneto-sensitive devices
JPH0213008A (en) Frequency variable oscillator
JPS5711521A (en) Elastic surface wave resonator
JPS54103653A (en) Linear and circular polarized wave switching unit
JPS5758401A (en) Switcher for polarized wave
JPS57133701A (en) Faraday rotatory element type reversible phase shifter
JPS5567202A (en) Circular polarized wave feed unit
JPS5453991A (en) Non-crystal magnetostriction transducer
JPS555555A (en) Surface acoustic wave element
JPS5469362A (en) Ultrasonic wave tranceducer system
JPS56110301A (en) Suppressing device of undesired mode
JPS5525277A (en) Speaker
JPS5564415A (en) Crystal vibrator