JPS60174391U - Unidirectional dynamic microphone - Google Patents

Unidirectional dynamic microphone

Info

Publication number
JPS60174391U
JPS60174391U JP6078984U JP6078984U JPS60174391U JP S60174391 U JPS60174391 U JP S60174391U JP 6078984 U JP6078984 U JP 6078984U JP 6078984 U JP6078984 U JP 6078984U JP S60174391 U JPS60174391 U JP S60174391U
Authority
JP
Japan
Prior art keywords
microphone
dynamic microphone
unidirectional dynamic
ventilation pipe
diaphragm
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.)
Granted
Application number
JP6078984U
Other languages
Japanese (ja)
Other versions
JPH0136399Y2 (en
Inventor
溝口　章夫
中村　仁一郎
泰汎 鈴木
Original Assignee
アイワ株式会社
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 アイワ株式会社 filed Critical アイワ株式会社
Priority to JP6078984U priority Critical patent/JPS60174391U/en
Publication of JPS60174391U publication Critical patent/JPS60174391U/en
Application granted granted Critical
Publication of JPH0136399Y2 publication Critical patent/JPH0136399Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１薗は本考案の一実施例を示す単一指向性ダイナミッ
クマイクロホンの構造を示す断面図、第２図は第１図の
マイクロホンの等価回路を示す回路図、第３図は第１図
のマイクロホンの周波数特性を表す特性図、第４図は従
来の無指向性ダイナミックマイクロホンの構造を示す断
面図、第５図ａは従来の単一指向性ダイナミックマイク
ロホンの構造を示す断面図、第５図すは第５図ａのマイ
クロホンの等価回路を示す回路図である。 符号の説明、１・・・・・・ユニット、２・・・・・・
空室、４・・・・・・音響抵抗、５・・・・・・通気孔
、６・・・・・・振動板、７・・・・・・音響移相回路
、訃・・・・・低域補償用パイプ、９・・・・・・セン
ターポール、１０・・・・・・マグネット。The first diagram is a cross-sectional view showing the structure of a unidirectional dynamic microphone showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing an equivalent circuit of the microphone in FIG. 1, and FIG. A characteristic diagram showing the frequency characteristics of the microphone. Fig. 4 is a sectional view showing the structure of a conventional omnidirectional dynamic microphone. Fig. 5a is a sectional view showing the structure of a conventional unidirectional dynamic microphone. FIG. 5 is a circuit diagram showing an equivalent circuit of the microphone of FIG. 5a. Explanation of symbols, 1...Unit, 2...
Vacant room, 4...acoustic resistance, 5...ventilation hole, 6...diaphragm, 7...acoustic phase shift circuit, death...・Low frequency compensation pipe, 9... Center pole, 10... Magnet.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 単一指向性ダイナミックマイクロホンにおいて、一端が
振動板後面の直前に位置し、他端がマイクロホン外に位
置する通気パイプを設け、該通気パイプによる音響イン
ピーダンスと振動板の機械インピーダンスとで構成され
る共振回路の共振周波数を前記通気パイプのない状態で
のマイクロホン振動系の共振周波数より低く設定したこ
とを特徴とする単一指向性ダイナミックマイクロホン。In a unidirectional dynamic microphone, a ventilation pipe is provided, one end of which is located just in front of the rear surface of the diaphragm, and the other end of which is located outside the microphone.Resonance is created by the acoustic impedance of the ventilation pipe and the mechanical impedance of the diaphragm. A unidirectional dynamic microphone characterized in that the resonant frequency of the circuit is set lower than the resonant frequency of the microphone vibration system without the ventilation pipe.
JP6078984U 1984-04-26 1984-04-26 Unidirectional dynamic microphone Granted JPS60174391U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6078984U JPS60174391U (en) 1984-04-26 1984-04-26 Unidirectional dynamic microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6078984U JPS60174391U (en) 1984-04-26 1984-04-26 Unidirectional dynamic microphone

Publications (2)

Publication Number Publication Date
JPS60174391U true JPS60174391U (en) 1985-11-19
JPH0136399Y2 JPH0136399Y2 (en) 1989-11-06

Family

ID=30588462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6078984U Granted JPS60174391U (en) 1984-04-26 1984-04-26 Unidirectional dynamic microphone

Country Status (1)

Country Link
JP (1) JPS60174391U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015231085A (en) * 2014-06-04 2015-12-21 株式会社オーディオテクニカ Capacitor microphone unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4119761Y1 (en) * 1964-07-09 1966-09-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4119761Y1 (en) * 1964-07-09 1966-09-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015231085A (en) * 2014-06-04 2015-12-21 株式会社オーディオテクニカ Capacitor microphone unit

Also Published As

Publication number Publication date
JPH0136399Y2 (en) 1989-11-06

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