JPH03113121U - - Google Patents
Info
- Publication number
- JPH03113121U JPH03113121U JP2089590U JP2089590U JPH03113121U JP H03113121 U JPH03113121 U JP H03113121U JP 2089590 U JP2089590 U JP 2089590U JP 2089590 U JP2089590 U JP 2089590U JP H03113121 U JPH03113121 U JP H03113121U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetoresistive element
- stripe
- conductive film
- recording medium
- 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
- 230000005415 magnetization Effects 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の実施例の構成を示す斜視図、
第２図ａ，ｂは実施例におけるＭＲ素子を形成す
る工程の説明図、第３図、第４図、第５図は本考
案の他の実施例の構成を示す斜視図、第６図は実
施例における出力を従来例と比較した説明図、第
７図、第８図は従来例の構成を示す斜視図である
。
１……磁気ヘツド、２……ガラス基板、３……
ＭＲ素子、３１……ストライプ部、３２……スト
ライプ露出部、４……リード端子、５……導電性
膜、５１……ストライプ折り返し部、５２……ス
トライプ端部、６……回転軸、７……ドラム、８
……磁気記録媒体、８１……磁化パターン。
FIG. 1 is a perspective view showing the configuration of an embodiment of the present invention;
FIGS. 2a and 2b are explanatory diagrams of the process of forming an MR element in the embodiment, FIGS. 3, 4, and 5 are perspective views showing the structure of another embodiment of the present invention, and FIG. 7 and 8 are perspective views showing the configuration of the conventional example. 1...Magnetic head, 2...Glass substrate, 3...
MR element, 31... Stripe portion, 32... Stripe exposed portion, 4... Lead terminal, 5... Conductive film, 51... Stripe folded portion, 52... Stripe end, 6... Rotating shaft, 7 ...Drums, 8
...Magnetic recording medium, 81...Magnetization pattern.
Claims (1)
場を発生する磁化パターンがピツチｐで書き込ま
れた少なくとも１つの磁化パターン列を有する磁
気記録媒体を備えた基体と、この磁気記録媒体に
近接して設け、磁化パターン列からの周期的磁場
を検出して出力変換する少なくとも１つのストラ
イプ状の磁気抵抗効果素子を設けた磁気ヘツドと
を備え、前記磁気抵抗効果素子のストライプの長
さをｌ、前記磁気記録媒体と前記磁気抵抗効果素
子の最も近接した距離をｇとしたときに、前記磁
気抵抗効果素子の面と前記磁気記録該体表面との
なす角αがｔａｎ−１｛２（ｌ＋ｇ）／ｐ｝度か
ら９０度の範囲であつて、ストライプ幅方向に磁
化パターンからの磁界が印加されるようにした磁
気エンコーダにおいて、 前記ストライプの一部が非磁性導電性膜で形成
され、前記非磁性導電性膜部分と重なる前記磁気
抵抗効果素子のストライプ部分のストライプ幅を
前記非磁性導電性膜部分と重ならない前記磁気抵
抗効果素子のストライプ部分のストライプ幅より
狭くしたことを特徴とする磁気エンコーダ。[Claims for Utility Model Registration] A base body comprising a magnetic recording medium having at least one magnetization pattern array written with a pitch p, which generates a periodic magnetic field according to the required position reading accuracy; a magnetic head provided with at least one striped magnetoresistive element that is disposed close to the magnetic recording medium and that detects a periodic magnetic field from a magnetization pattern array and converts the output, the stripe of the magnetoresistive element; When the length of is l and the closest distance between the magnetic recording medium and the magnetoresistive element is g, the angle α between the surface of the magnetoresistive element and the surface of the magnetic recording body is tan - 1. In a magnetic encoder in which a magnetic field from a magnetization pattern is applied in the stripe width direction in a range from {2(l+g)/p} degrees to 90 degrees, a part of the stripes is a non-magnetic conductive film. The stripe width of the stripe portion of the magnetoresistive element that overlaps with the non-magnetic conductive film portion is narrower than the stripe width of the stripe portion of the magnetoresistive element that does not overlap with the non-magnetic conductive film portion. A magnetic encoder featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089590U JPH03113121U (en) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089590U JPH03113121U (en) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03113121U true JPH03113121U (en) | 1991-11-19 |
Family
ID=31523978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2089590U Pending JPH03113121U (en) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03113121U (en) |
-
1990
- 1990-02-28 JP JP2089590U patent/JPH03113121U/ja active Pending
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