JPS5463702A - Magnetic circuit for electromagnetic converters - Google Patents

Magnetic circuit for electromagnetic converters

Info

Publication number
JPS5463702A
JPS5463702A JP12961477A JP12961477A JPS5463702A JP S5463702 A JPS5463702 A JP S5463702A JP 12961477 A JP12961477 A JP 12961477A JP 12961477 A JP12961477 A JP 12961477A JP S5463702 A JPS5463702 A JP S5463702A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic circuit
thru
pole pieces
permalloy
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
JP12961477A
Other languages
Japanese (ja)
Inventor
Osamu Hattori
Toshitaka Sugimoto
Shoichi Umemura
Ryozo Sawada
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 JP12961477A priority Critical patent/JPS5463702A/en
Publication of JPS5463702A publication Critical patent/JPS5463702A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To improve various characteristics of the magnetic circuit by forming magnetic cores with fine wires of high magnetic permeability magnetic material. CONSTITUTION:Magnetic cores formed to specified shapes by bundling fine wires of high magnetic permeability material such as Permalloy, etc. to strip form are used as pole pieces 1 thru 4 and these together with yokes 5, 6, power generating coils 7, 8, etc. form pickup cartridges, magnetic heads, etc. This enables a magnetic circuit for electromagnetic conversion to be formed by using the pole pieces 1 thru 4 which have undergone bending, magnetic annealing, etc. Hence, the need for laborious operations such as respective magnetic annealing, bonding, laminating, etc. of permalloy plates is eliminated. As a result, the magnetic circuit of high sensitivity and of frequency characteristics having been flattened over a wide range may be provided.
JP12961477A 1977-10-31 1977-10-31 Magnetic circuit for electromagnetic converters Pending JPS5463702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12961477A JPS5463702A (en) 1977-10-31 1977-10-31 Magnetic circuit for electromagnetic converters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12961477A JPS5463702A (en) 1977-10-31 1977-10-31 Magnetic circuit for electromagnetic converters

Publications (1)

Publication Number Publication Date
JPS5463702A true JPS5463702A (en) 1979-05-22

Family

ID=15013810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12961477A Pending JPS5463702A (en) 1977-10-31 1977-10-31 Magnetic circuit for electromagnetic converters

Country Status (1)

Country Link
JP (1) JPS5463702A (en)

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