JPS60153091U - electroacoustic transducer - Google Patents
electroacoustic transducerInfo
- Publication number
- JPS60153091U JPS60153091U JP4040084U JP4040084U JPS60153091U JP S60153091 U JPS60153091 U JP S60153091U JP 4040084 U JP4040084 U JP 4040084U JP 4040084 U JP4040084 U JP 4040084U JP S60153091 U JPS60153091 U JP S60153091U
- Authority
- JP
- Japan
- Prior art keywords
- electroacoustic transducer
- voice coil
- detection means
- field detection
- magnetic field
- 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
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
第１図はダイナミック型スピーカにおける磁気回路の磁
束分布を示す説明図、第２図乃至第５図は本考案に係る
電気音響変換装置の実施例を示し、第２図はスピーカに
実施した場合の回路図、第３図は磁界検出手段の取付状
態を示す断面図、第４図はホール素子の斜視図、第５図
Ａは第３図のギャップｇでのボイスコイル４の駆動変位
ｌに対する磁束密度Ｂの分布状態を説明するためのグラ
フ、同図Ｂは検出電圧の変化を示すグラフ、同図Ｃは差
電圧の変化を示すグラフ、同図りは利得変化を示すグラ
フである。
１：スピーカ、４：ボイスコイル、６：ホール素子、７
：補償回路、１２：ホール素子駆動用電流発生器。
第３図
第５図FIG. 1 is an explanatory diagram showing the magnetic flux distribution of the magnetic circuit in a dynamic speaker, FIGS. 2 to 5 show examples of the electroacoustic transducer according to the present invention, and FIG. The circuit diagram, FIG. 3 is a sectional view showing the installation state of the magnetic field detection means, FIG. 4 is a perspective view of the Hall element, and FIG. A graph for explaining the distribution state of the density B, B is a graph showing changes in detected voltage, C is a graph showing changes in differential voltage, and C is a graph showing changes in gain. 1: Speaker, 4: Voice coil, 6: Hall element, 7
: compensation circuit, 12: current generator for driving Hall element. Figure 3 Figure 5
Claims (1)
コイルの駆動変位に伴う磁気回路における磁束密度の変
化を検出する磁界検出手段と、該磁界検出手段からの信
号により信号電流を補正する補正手段とを備えているこ
とを特徴とする電気音響変換装置。a magnetic field detection means that is attached to co-operate with the voice coil and detects a change in magnetic flux density in a magnetic circuit due to drive displacement of the voice coil; and a correction means that corrects a signal current using a signal from the magnetic field detection means. An electroacoustic transducer comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040084U JPS60153091U (en) | 1984-03-23 | 1984-03-23 | electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040084U JPS60153091U (en) | 1984-03-23 | 1984-03-23 | electroacoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60153091U true JPS60153091U (en) | 1985-10-12 |
Family
ID=30549252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4040084U Pending JPS60153091U (en) | 1984-03-23 | 1984-03-23 | electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60153091U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102324A (en) * | 1973-01-31 | 1974-09-27 |
-
1984
- 1984-03-23 JP JP4040084U patent/JPS60153091U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102324A (en) * | 1973-01-31 | 1974-09-27 |
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