JPH0388118U

JPH0388118U -

Info

Publication number: JPH0388118U
Application number: JP14903589U
Authority: JP
Priority date: 1989-12-25
Filing date: 1989-12-25
Publication date: 1991-09-09
Anticipated expiration: 2004-12-25
Also published as: JPH0744972Y2

Description

[Brief explanation of drawings]

第１図ないし第６図は本考案実施例のセンサユ
ニツトの構成図で、第１図は一部切断側面図、第
２図、第３図、第４図は第１図における−方
向、−方向の矢視図および−方向からの
拡大矢視図、第５図は磁気抵抗素子の概念を示す
構成図、第６図はセンサユニツトの特性図、第７
図、第８図は本実施例のセンサユニツトと該セン
サユニツトの駆動手段との関連構造を示し、第７
図Ａはセンサユニツトが駆動されていない状態の
正面図、第７図Ｂは第７図Ａ内のガイドの拡大斜
視図、第８図はセンサユニツトが駆動されている
状態の正面図である。１……ヨーク、２……永久磁石、３……磁気抵
抗素子、４……本体、５……軸、６……軸受材、
７……壁、８，９……入力端子、１０……出力端
子、１１……バツクスプリング、１２，１３，１
４……端子板、１７，１８，１９……端子、２０
……ガイド、２０ａ……ガイドの先端、２０ｂ…
…ガイドの基端、２１……溝、２２……ベルト、
２２ａ……ベルトの先端、２２ｂ……ベルトの基
端、２３……棒部材、２４……枠体。 1 to 6 are configuration diagrams of a sensor unit according to an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view, and FIGS. 2, 3, and 4 are in the - direction in FIG. Fig. 5 is a configuration diagram showing the concept of the magnetoresistive element, Fig. 6 is a characteristic diagram of the sensor unit, and Fig. 7 is a diagram showing the characteristics of the sensor unit.
8 shows the related structure of the sensor unit of this embodiment and the driving means of the sensor unit, and FIG.
Figure A is a front view of the sensor unit not being driven, Figure 7B is an enlarged perspective view of the guide in Figure 7A, and Figure 8 is a front view of the sensor unit being driven. DESCRIPTION OF SYMBOLS 1...Yoke, 2...Permanent magnet, 3...Magnetic resistance element, 4...Main body, 5...Shaft, 6...Bearing material,
7... Wall, 8, 9... Input terminal, 10... Output terminal, 11... Back spring, 12, 13, 1
4...Terminal board, 17, 18, 19...Terminal, 20
...Guide, 20a...Tip of guide, 20b...
... base end of guide, 21 ... groove, 22 ... belt,
22a...Tip of the belt, 22b...Base end of the belt, 23...Bar member, 24...Frame.

Claims

[Claims for Utility Model Registration] The sensor unit is composed of a sensor unit and a driving means for the sensor unit. A magnetoresistive element 3 is interposed between the magnetic poles of a pair of permanent magnets, a main body 4 supports both ends of the yoke 1 rotatably at a predetermined angle, and one end is locked to the curved portion of the yoke 1 to support the yoke. The driving means for the sensor unit is an arc-shaped back spring 11 whose other end is locked to a fixed member in order to return it to the rotational original position. A guide 20 and a base end 20b of the guide
The base end 22b is fixed to the tip 2 of the guide.
The belt 22 guided to the 0a side, the tip 22a of the belt is fixed, and the proximal end 23c of the guide on the proximal end 20b side engages with the member to be measured and moves linearly, and is integrally formed with the main body 4. A non-contact linear displacement sensor characterized by comprising a rod member 23 supported by a frame body 24.