JPS57119599A - Electromagnetic pickup cartridge - Google Patents

Electromagnetic pickup cartridge

Info

Publication number
JPS57119599A
JPS57119599A JP697681A JP697681A JPS57119599A JP S57119599 A JPS57119599 A JP S57119599A JP 697681 A JP697681 A JP 697681A JP 697681 A JP697681 A JP 697681A JP S57119599 A JPS57119599 A JP S57119599A
Authority
JP
Japan
Prior art keywords
armature
yokes
cantilever
coils
magnetic flux
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
JP697681A
Other languages
Japanese (ja)
Inventor
Keizo Kano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP697681A priority Critical patent/JPS57119599A/en
Publication of JPS57119599A publication Critical patent/JPS57119599A/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)

Abstract

PURPOSE:To flatten frequency characteristics by inducing a voltage across an air-core coil directly by the variation of magnetic flux of an armature, thus eliminating harmful magnetic strain, and realizing flat transmission characteristics to very high range where no eddy current is generated. CONSTITUTION:A stylus tip 17 is provided at one end of the cantilever 18 of the stylus structure part of an electromagnetic pickup cartridge, and an armature 19 is arranged at the other end; and the armature 19 is fitted in the lengthwise direction of the cantilever 18. Air-core printed coils 22 and 23 are arranged near the N pole of the armature 19 in the maximum sensitivity directions P1 and P2 of the modulated wall of a record disk, and yokes 20 and 21 made of magnetic materials are provided, facing each other, outside of the coils 22 and 23. Then, the armature 19 is oscillated corresponding to the speed amplitude of the tip 17 of the cantilever 18 and before the variation of magnetic flux is transferred to the yokes 20 and 21, the coils 22 and 23 generate electricity to obtain signals at output terminals 24 and 25, thereby feeding the variations of magnetic flux from the yokes 20 and 21 to the armature 19.
JP697681A 1981-01-19 1981-01-19 Electromagnetic pickup cartridge Pending JPS57119599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP697681A JPS57119599A (en) 1981-01-19 1981-01-19 Electromagnetic pickup cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP697681A JPS57119599A (en) 1981-01-19 1981-01-19 Electromagnetic pickup cartridge

Publications (1)

Publication Number Publication Date
JPS57119599A true JPS57119599A (en) 1982-07-26

Family

ID=11653220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP697681A Pending JPS57119599A (en) 1981-01-19 1981-01-19 Electromagnetic pickup cartridge

Country Status (1)

Country Link
JP (1) JPS57119599A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518882B1 (en) * 1971-04-19 1980-05-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518882B1 (en) * 1971-04-19 1980-05-22

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