GB1046177A - Dynamic vibrating coil microphone and a method of tuning the same - Google Patents

Dynamic vibrating coil microphone and a method of tuning the same

Info

Publication number
GB1046177A
GB1046177A GB4758164A GB4758164A GB1046177A GB 1046177 A GB1046177 A GB 1046177A GB 4758164 A GB4758164 A GB 4758164A GB 4758164 A GB4758164 A GB 4758164A GB 1046177 A GB1046177 A GB 1046177A
Authority
GB
United Kingdom
Prior art keywords
plate
tuning
pressure
microphone
unit
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
GB4758164A
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.)
Elektroakusztikai Gyar
Original Assignee
Elektroakusztikai Gyar
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 Elektroakusztikai Gyar filed Critical Elektroakusztikai Gyar
Publication of GB1046177A publication Critical patent/GB1046177A/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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Measuring Fluid Pressure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

1,046,177. Moving coil microphones. ELEKTROAKUSZTIKAI GYAR. Nov. 23, 1964 [Nov. 23, 1963], No. 47581/64. Heading H4J. A moving coil transducer, Fig. 2, has an acoustic resistance unit coupling the air space between the diaphragm 7 and the diaphragm carrier plate 8 with a larger cavity 6 within the microphone. The resistance unit comprises a porous plate 3 which is pressed against the holes 4 in centring plate 10, or the diaphragm carrier plate 8 if the centring plate is not provided, by a tuning plate 2, the pressure being adjusted and maintained by e.g. lugs 11 or screws. The resistance unit is prefabricated prior to assembly of the microphone so that the acoustical resistance of the unit may be adjusted, e.g. by measuring the pressure drop across the unit when placed in a stream of compressed air and adjusting the pressure of the tuning plate on the porous plate to attain a predetermined pressure drop, before assembly. In the prior art described the pressure of the tuning plate is maintained by a rubber bush mounted around the magnet 12, Fig. 1 (not shown).
GB4758164A 1963-11-23 1964-11-23 Dynamic vibrating coil microphone and a method of tuning the same Expired GB1046177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUEE001057 1963-11-23

Publications (1)

Publication Number Publication Date
GB1046177A true GB1046177A (en) 1966-10-19

Family

ID=10995163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4758164A Expired GB1046177A (en) 1963-11-23 1964-11-23 Dynamic vibrating coil microphone and a method of tuning the same

Country Status (4)

Country Link
AT (1) AT256951B (en)
DE (1) DE1437392A1 (en)
GB (1) GB1046177A (en)
NL (1) NL6413595A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10542337B2 (en) 2017-07-18 2020-01-21 Shure Acquisition Holdings, Inc. Moving coil microphone transducer with secondary port

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10542337B2 (en) 2017-07-18 2020-01-21 Shure Acquisition Holdings, Inc. Moving coil microphone transducer with secondary port
US11451891B2 (en) 2017-07-18 2022-09-20 Shure Acquisition Holdings, Inc. Moving coil microphone transducer with secondary port

Also Published As

Publication number Publication date
NL6413595A (en) 1965-05-24
AT256951B (en) 1967-09-11
DE1437392A1 (en) 1968-10-24

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