JPH0322499U - - Google Patents
Info
- Publication number
- JPH0322499U JPH0322499U JP8325389U JP8325389U JPH0322499U JP H0322499 U JPH0322499 U JP H0322499U JP 8325389 U JP8325389 U JP 8325389U JP 8325389 U JP8325389 U JP 8325389U JP H0322499 U JPH0322499 U JP H0322499U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- output
- magnetoresistive element
- magnetic field
- moving coil
- 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
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 230000005674 electromagnetic induction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
第１図はこの考案に係るマイクロホンの縦断面
図、第２図は同上に使用する磁気抵抗素子の斜視
図、第３図は同上マイクロホンの等価回路図、第
４図は従来のマイクロホンを示す縦断面図、第５
図は同上の等価回路図である。
１１……振動板、１２……可動コイル、１３…
…ポールピース、１４……ヨーク、１５……磁石
、１６……密閉容器、２０……磁気抵抗素子、２
１……リード線、２２……絶縁膜。
Fig. 1 is a longitudinal cross-sectional view of the microphone according to this invention, Fig. 2 is a perspective view of a magnetoresistive element used in the same, Fig. 3 is an equivalent circuit diagram of the same microphone, and Fig. 4 is a longitudinal cross-sectional view of a conventional microphone. Front view, No. 5
The figure is an equivalent circuit diagram of the same as above. 11... Vibration plate, 12... Moving coil, 13...
... Pole piece, 14 ... Yoke, 15 ... Magnet, 16 ... Airtight container, 20 ... Magnetoresistive element, 2
1... Lead wire, 22... Insulating film.
Claims (1)
動する振動板で移動させ、電磁誘導作用によつて
可動コイルに生じた起電力をマイク出力として利
用するようにしたマイクロホンにおいて、可動コ
イルのリード線を磁気抵抗素子上に絶縁膜を介し
て位置させ、リード線の外周に生じる磁界を磁気
抵抗素子の抵抗変化として取り出し、マイク出力
とすることを特徴とするマイクロホン。 In a microphone, a moving coil placed in a magnetic field is moved by a diaphragm vibrated by sound waves, and the electromotive force generated in the moving coil by electromagnetic induction is used as microphone output. A microphone characterized in that a wire is placed over a magnetoresistive element via an insulating film, and a magnetic field generated around the outer periphery of the lead wire is extracted as a resistance change of the magnetoresistive element and output as a microphone output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8325389U JPH0322499U (en) | 1989-07-14 | 1989-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8325389U JPH0322499U (en) | 1989-07-14 | 1989-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0322499U true JPH0322499U (en) | 1991-03-07 |
Family
ID=31630763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8325389U Pending JPH0322499U (en) | 1989-07-14 | 1989-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322499U (en) |
-
1989
- 1989-07-14 JP JP8325389U patent/JPH0322499U/ja active Pending
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