JPS6425706U - - Google Patents
Info
- Publication number
- JPS6425706U JPS6425706U JP11958887U JP11958887U JPS6425706U JP S6425706 U JPS6425706 U JP S6425706U JP 11958887 U JP11958887 U JP 11958887U JP 11958887 U JP11958887 U JP 11958887U JP S6425706 U JPS6425706 U JP S6425706U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- displacement
- generating element
- field generating
- amorphous ferromagnetic
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図はこの考案の一実施例を示す概略構成図
、第２図は同じくそのアモルフアス強磁性体薄帯
の設置部分を拡大して示す斜視図、第３図は同じ
く第１図の変位検出装置の主要部の構造を示す分
解斜視図、第４図は自己インダクタンスを検出す
る回路の一例を示す回路図、第５図はこの考案を
適用した変位検出装置によつて測定した距離ｘと
検出用コイルの自己インダクタンスＬとの関係を
示す線図である。
１……シールドケース、２……アモルフアス強
磁性体薄帯、３……検出用コイル、４……検出回
路、５……測定対象物、６……小磁石（磁界発生
素子）、２３……分岐磁路部材。
Figure 1 is a schematic configuration diagram showing an embodiment of this invention, Figure 2 is an enlarged perspective view of the installed part of the amorphous ferromagnetic thin strip, and Figure 3 is the displacement detection shown in Figure 1. An exploded perspective view showing the structure of the main part of the device, Fig. 4 is a circuit diagram showing an example of a circuit for detecting self-inductance, and Fig. 5 shows the distance x measured and detected by the displacement detection device to which this invention is applied. It is a diagram showing the relationship between the self-inductance L and the coil for use. DESCRIPTION OF SYMBOLS 1... Shield case, 2... Amorphous ferromagnetic ribbon, 3... Detection coil, 4... Detection circuit, 5... Measurement object, 6... Small magnet (magnetic field generating element), 23... Branch magnetic path member.
Claims (1)
発生素子との相対距離が測定対象物の変位によつ
て変化するように配置される短冊状のアモルフア
ス強磁性体薄帯と、該アモルフアス強磁性体薄帯
を磁心とする検出用コイルと、該コイルに一定の
微小交流電流を流してその自己インダクタンスを
検出する回路とを備え、前記アモルフアス強磁性
体薄帯と磁界発生素子との間に高透磁率材よりな
る分岐磁路部材を設け、前記磁界発生素子とアモ
ルフアス強磁性体薄帯との相対距離の変化による
前記検出用コイルへの印加磁界の変化を該コイル
の自己インダクタンスの変化に変換して検出する
ことにより、測定対象物の変位を検出するように
したことを特徴とする変位検出装置。 A magnetic field generating element that generates a constant magnetic field, a strip-shaped amorphous ferromagnetic thin strip arranged so that the relative distance between the magnetic field generating element and the magnetic field generating element changes depending on the displacement of an object to be measured, and the amorphous ferromagnetic material. It is equipped with a detection coil whose magnetic core is the amorphous ferromagnetic material ribbon, and a circuit for detecting its self-inductance by passing a constant minute alternating current through the coil. A branch magnetic path member made of a magnetically permeable material is provided, and a change in the magnetic field applied to the detection coil due to a change in the relative distance between the magnetic field generating element and the amorphous ferromagnetic ribbon is converted into a change in the self-inductance of the coil. 1. A displacement detection device characterized in that the displacement of an object to be measured is detected by detecting the displacement of the object to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11958887U JPS6425706U (en) | 1987-08-04 | 1987-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11958887U JPS6425706U (en) | 1987-08-04 | 1987-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425706U true JPS6425706U (en) | 1989-02-13 |
Family
ID=31364948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11958887U Pending JPS6425706U (en) | 1987-08-04 | 1987-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425706U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127452A (en) * | 1974-08-29 | 1976-03-08 | Mishima Kosan Co Ltd | |
| JPS56158967A (en) * | 1980-05-13 | 1981-12-08 | Matsushita Electric Ind Co Ltd | Magnetism detector |
| JPS5773618A (en) * | 1980-10-24 | 1982-05-08 | Nec Home Electronics Ltd | Linear displacement detecting method |
-
1987
- 1987-08-04 JP JP11958887U patent/JPS6425706U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127452A (en) * | 1974-08-29 | 1976-03-08 | Mishima Kosan Co Ltd | |
| JPS56158967A (en) * | 1980-05-13 | 1981-12-08 | Matsushita Electric Ind Co Ltd | Magnetism detector |
| JPS5773618A (en) * | 1980-10-24 | 1982-05-08 | Nec Home Electronics Ltd | Linear displacement detecting method |
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