JPH0283414U - - Google Patents
Info
- Publication number
- JPH0283414U JPH0283414U JP16413188U JP16413188U JPH0283414U JP H0283414 U JPH0283414 U JP H0283414U JP 16413188 U JP16413188 U JP 16413188U JP 16413188 U JP16413188 U JP 16413188U JP H0283414 U JPH0283414 U JP H0283414U
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- magnetized
- circumferential surface
- magnetized drum
- drum
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図はこの考案による磁気式エンコーダにお
ける着磁ドラムの検出装置の実施例を示す概略図
、第２図は第１図の―線に沿つて見た概略図
、第３図は着磁ドラムに対する磁気センサーのギ
ヤツプと出力との関係を示す図、第４図は着磁ピ
ツチとギヤツプとの関係を示す図である。
１……着磁ドラム、２……溝、３……ガイド部
材、４……ガイドピン、５……磁気センサー、６
……固定部材、７……ばね。
Fig. 1 is a schematic diagram showing an embodiment of a magnetized drum detection device in a magnetic encoder according to this invention, Fig. 2 is a schematic diagram taken along the line - in Fig. 1, and Fig. 3 is a schematic diagram showing an embodiment of a magnetized drum detection device in a magnetic encoder according to this invention. FIG. 4 is a diagram showing the relationship between the gap and output of the magnetic sensor relative to the magnetic sensor, and FIG. 4 is a diagram showing the relationship between the magnetization pitch and the gap. 1... Magnetized drum, 2... Groove, 3... Guide member, 4... Guide pin, 5... Magnetic sensor, 6
...Fixing member, 7...Spring.
Claims (1)
部を磁気センサーで検出するようにした磁気式エ
ンコーダにおいて、前記着磁ドラムの一方の側面
に、周面から所定の間隔となつている環状の溝を
穿設し、該溝内に位置するガイドピンを有すると
ともに、着磁ドラムの周面に対向する部分を有す
るガイド部材と、該ガイド部材の着磁ドラムの周
面に対向する部分に設けられた磁気センサーと、
前記着磁ドラムの回転時に前記ガイド部材が連れ
回りするのを防止するために、前記ガイド部材を
保持する保持部材とを設けたことを特徴とする磁
気式エンコーダにおける着磁ドラムの検出装置。 In a magnetic encoder that uses a magnetic sensor to detect a magnetized portion provided on the outer circumferential surface of a rotating magnetized drum, an annular ring is provided on one side of the magnetized drum at a predetermined distance from the circumferential surface. A guide member having a groove bored therein, a guide pin located in the groove, and a portion facing the circumferential surface of the magnetized drum; and a guide member provided in the portion of the guide member facing the circumferential surface of the magnetized drum. magnetic sensor,
A detection device for a magnetized drum in a magnetic encoder, characterized in that a holding member for holding the guide member is provided to prevent the guide member from rotating when the magnetized drum rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413188U JPH0628650Y2 (en) | 1988-12-19 | 1988-12-19 | Detecting device for magnetizing drum in magnetic encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413188U JPH0628650Y2 (en) | 1988-12-19 | 1988-12-19 | Detecting device for magnetizing drum in magnetic encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0283414U true JPH0283414U (en) | 1990-06-28 |
| JPH0628650Y2 JPH0628650Y2 (en) | 1994-08-03 |
Family
ID=31449470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16413188U Expired - Fee Related JPH0628650Y2 (en) | 1988-12-19 | 1988-12-19 | Detecting device for magnetizing drum in magnetic encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628650Y2 (en) |
-
1988
- 1988-12-19 JP JP16413188U patent/JPH0628650Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628650Y2 (en) | 1994-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |