GB1293636A - Electromechanical transducers - Google Patents

Electromechanical transducers

Info

Publication number
GB1293636A
GB1293636A GB02890/70A GB1289070A GB1293636A GB 1293636 A GB1293636 A GB 1293636A GB 02890/70 A GB02890/70 A GB 02890/70A GB 1289070 A GB1289070 A GB 1289070A GB 1293636 A GB1293636 A GB 1293636A
Authority
GB
United Kingdom
Prior art keywords
armature
permanent magnet
portions
rods
magnet portions
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
GB02890/70A
Other languages
English (en)
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.)
FONOFILM IND
FONOFILM INDUSTRI AS
Original Assignee
FONOFILM IND
FONOFILM INDUSTRI AS
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 FONOFILM IND, FONOFILM INDUSTRI AS filed Critical FONOFILM IND
Publication of GB1293636A publication Critical patent/GB1293636A/en
Expired 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means
    • 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)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)
GB02890/70A 1969-03-25 1970-03-17 Electromechanical transducers Expired GB1293636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK163669AA DK124049B (da) 1969-03-25 1969-03-25 Magnetisk pick-up.

Publications (1)

Publication Number Publication Date
GB1293636A true GB1293636A (en) 1972-10-18

Family

ID=8106759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02890/70A Expired GB1293636A (en) 1969-03-25 1970-03-17 Electromechanical transducers

Country Status (10)

Country Link
US (1) US3700829A (enrdf_load_stackoverflow)
JP (1) JPS4927441B1 (enrdf_load_stackoverflow)
CH (1) CH522996A (enrdf_load_stackoverflow)
DK (1) DK124049B (enrdf_load_stackoverflow)
FR (1) FR2033011A5 (enrdf_load_stackoverflow)
GB (1) GB1293636A (enrdf_load_stackoverflow)
HK (1) HK64276A (enrdf_load_stackoverflow)
NL (1) NL7003987A (enrdf_load_stackoverflow)
NO (1) NO126413B (enrdf_load_stackoverflow)
SE (1) SE341968B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953774A3 (en) * 2007-01-12 2012-10-24 Saia-Burgess Inc. Electromagnetically actuated bistable magnetic latching pin lock
CN112606610A (zh) * 2020-12-24 2021-04-06 湖北科技学院 一种具有缓冲功能的无级调速微雕笔

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683128A (en) * 1970-06-29 1972-08-08 Joseph F Grado Flux-bridging stereophonic pickup
DE2230203C2 (de) * 1972-06-21 1974-07-04 Electroacustic Gmbh, 2300 Kiel Elektromagnetischer Tonabnehmer, vorzugsweise zur Wiedergabe von quadrofonischen Schallaufnahmen
US3878342A (en) * 1972-08-18 1975-04-15 Fonofilm Ind A S Replaceable stylus for stereophonic phonograph pickup
US3846592A (en) * 1973-03-29 1974-11-05 W Stanton Phonograph pickup cartridge for four channel recordings
US3881073A (en) * 1973-11-12 1975-04-29 Joseph F Grado Replaceable stylus-lever generator module for an electromagnetic cartridge
US4103116A (en) * 1974-12-05 1978-07-25 Nippon Gakki Seizo Kabushiki Kaisha Pickup cartridge with moving magnet armature
US4031336A (en) * 1975-02-10 1977-06-21 Grado Joseph F Electromagnetic pickup with magnetic gap displacement generator
US4037060A (en) * 1975-07-09 1977-07-19 Nippon Atsudenki Kabushiki Kaisha T/A Japan Piezo Co., Ltd. Stereophonic pickup cartridge
US4221937A (en) * 1978-08-10 1980-09-09 Fidelity-Research, Inc. Moving iron type cartridge
JPS5550800A (en) * 1978-10-06 1980-04-12 Audio Technica Corp Movable coil type pick up cartridge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294405A (en) * 1963-12-11 1966-12-27 Audio Dynamics Corp Phonograph pick-up
US3538266A (en) * 1967-10-06 1970-11-03 Micro Seiki Co Ltd Magnetic pickup with inducing magnet axially aligned with the armature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953774A3 (en) * 2007-01-12 2012-10-24 Saia-Burgess Inc. Electromagnetically actuated bistable magnetic latching pin lock
CN112606610A (zh) * 2020-12-24 2021-04-06 湖北科技学院 一种具有缓冲功能的无级调速微雕笔

Also Published As

Publication number Publication date
NO126413B (enrdf_load_stackoverflow) 1973-01-29
US3700829A (en) 1972-10-24
HK64276A (en) 1976-10-22
DK124049B (da) 1972-09-04
SE341968B (enrdf_load_stackoverflow) 1972-01-17
DE2007469A1 (de) 1970-10-08
JPS4927441B1 (enrdf_load_stackoverflow) 1974-07-18
FR2033011A5 (enrdf_load_stackoverflow) 1970-11-27
DE2007469B2 (de) 1975-08-21
CH522996A (de) 1972-05-15
NL7003987A (enrdf_load_stackoverflow) 1970-09-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee