JPS61195508U

JPS61195508U -

Info

Publication number: JPS61195508U
Application number: JP1813586U
Authority: JP
Priority date: 1986-02-13
Filing date: 1986-02-13
Publication date: 1986-12-05

Description

[Brief explanation of the drawing]

第１図はデユアルギヤツプ磁気ヘツドを用いた
磁電変換装置の従来例を示す原理的な構成図であ
る。第２図は従来のマルチギヤツプ磁気ヘツドを
用いた測尺装置の従来例を示す原理的な構成図で
ある。第３図は上記従来のマルチギヤツプ磁気ヘ
ツドから得られる検出信号の波形図である。第４
図ないし第１０図は本考案の第１の実施例を示し
ており、第４図は第１の実施例の外観斜視図、第
５図は同じく分解斜視図、第６図は第１の実施例
の磁気ヨークの分解斜視図、第７図は同じく磁気
ヨークの組み立て状態の外観斜視図、第８図は第
１の実施例における可飽和磁気コアの外観斜視図
、第９図は第１の実施例の等価回路図、第１０図
は第１の実施例における磁気回路の等価回路図で
ある。第１１図および第１２図は本考案の第２の
実施例を示しており、第１１図は第２の実施例の
外観斜視図、第１２図は同じく分解斜視図である
。第１３図および第１４図は本考案の第３の実施
例を示しており、第１３図は第３の実施例におけ
る磁気ヨークの外観斜視図、第１４図は同じく第
３の実施例に分解斜視図である。第１５図ないし
第１７図は本考案の第４の実施例を示しており、
第１５図は第４の実施例における磁気ヨークの外
観斜視図、第１６図は第４の実施例の分解斜視図
、第１７図は同じく組み立て状態の外観斜視図で
ある。第１８図ないし第２０図は本考案の第５の
実施例を示しており、第１８図は第５の実施例に
おける磁気ヨークの外観斜視図、第１９図は第５
の実施例の分解斜視図、第２０図は同じく組み立
て状態の外観斜視図である。第２１図は本考案の
第６の実施例を示す分解斜視図である。第２２図
は本考案に係る磁束応答型マルチギヤツプ磁気ヘ
ツドを用いて構成される測尺装置の原理的な構成
図である。４０，７０，９０，１１０，１３０，１４０，
ＭＧＨ……マルチギヤツプ磁気ヘツド、４１，１
１，ＭＳ……磁気ケーブル、４３，７１，８１，
１１２，１３１，１４１……磁気ヨーク、４４，
４５，７８ａ，７８ｂ，８３，８４……検出コイ
ル、４６，４７，５８，７６，８２，９５……可
飽和磁気コア、ｇ_ａ，ｇ_ｂ，……ｇ_ｍ……磁気空
隙。 FIG. 1 is a diagram showing the basic structure of a conventional magneto-electric conversion device using a dual-gap magnetic head. FIG. 2 is a diagram showing the basic structure of a conventional measuring device using a multi-gap magnetic head. FIG. 3 is a waveform diagram of a detection signal obtained from the conventional multi-gap magnetic head. Fourth
10 to 10 show a first embodiment of the present invention, FIG. 4 is an external perspective view of the first embodiment, FIG. 5 is an exploded perspective view, and FIG. 6 is an exploded perspective view of the first embodiment. FIG. 7 is an exploded perspective view of the magnetic yoke of the example, FIG. 7 is an external perspective view of the assembled magnetic yoke, FIG. 8 is an external perspective view of the saturable magnetic core in the first embodiment, and FIG. 9 is the external perspective view of the first embodiment. Equivalent circuit diagram of the embodiment. FIG. 10 is an equivalent circuit diagram of the magnetic circuit in the first embodiment. 11 and 12 show a second embodiment of the present invention, FIG. 11 is an external perspective view of the second embodiment, and FIG. 12 is an exploded perspective view. 13 and 14 show a third embodiment of the present invention, FIG. 13 is an external perspective view of the magnetic yoke in the third embodiment, and FIG. 14 is an exploded view of the third embodiment. FIG. 15 to 17 show a fourth embodiment of the present invention,
FIG. 15 is an external perspective view of a magnetic yoke according to the fourth embodiment, FIG. 16 is an exploded perspective view of the fourth embodiment, and FIG. 17 is an external perspective view of the magnetic yoke in an assembled state. 18 to 20 show a fifth embodiment of the present invention, FIG. 18 is an external perspective view of a magnetic yoke in the fifth embodiment, and FIG. 19 is a fifth embodiment of the present invention.
Fig. 20 is an exploded perspective view of the embodiment, and Fig. 20 is an external perspective view of the assembled state. FIG. 21 is an exploded perspective view showing a sixth embodiment of the present invention. FIG. 22 is a diagram illustrating the basic configuration of a measuring device constructed using a magnetic flux responsive multi-gap magnetic head according to the present invention. 40, 70, 90, 110, 130, 140,
MGH...Multi-gap magnetic head, 41,1
1, MS...magnetic cable, 43, 71, 81,
112, 131, 141...magnetic yoke, 44,
45, 78a, 78b, 83, 84... detection coil, 46, 47, 58, 76, 82, 95... saturable magnetic core, g _a , g _b ,... g _m ... magnetic gap.

Claims

[Claims for Utility Model Registration] (1) In a magnetic flux-responsive magnetic head in which a part of the magnetic circuit is formed by a saturable magnetic core, a portion located between the magnetic legs of a magnetic yoke constituting the magnetic circuit. A notch is formed on the saturable magnetic core to locally reduce the cross-sectional area, and a saturable magnetic core with a detection coil wound thereon is attached between the magnetic legs of the magnetic yoke. A magnetic flux-responsive magnetic head characterized in that a supplementary magnetic core is attached to a portion where a magnetic head is not formed. (2) A magnetic yoke formed in a substantially H-shaped block shape is provided, two saturable magnetic cores are distributed and attached between each magnetic leg of the magnetic yoke, and a supplementary magnetic core is installed between each magnetic leg. A magnetic flux responsive magnetic head according to claim 1, which is characterized in that a core is attached thereto. (3) A magnetic yoke formed in a substantially E-shaped block shape is provided, and a notch is formed in a portion located between the central magnetic leg of the magnetic yoke and each outer magnetic leg. A supplementary magnetic core is placed and fixed between each magnetic leg on the outside of the magnetic yoke, sandwiching a saturable magnetic core around which a detection coil is wound. Flux responsive magnetic head.