JPS59109912U

JPS59109912U - angle converter

Info

Publication number: JPS59109912U
Application number: JP440583U
Authority: JP
Inventors: 正西原; 田村　久
Original assignee: 横河電機株式会社
Priority date: 1983-01-17
Filing date: 1983-01-17
Publication date: 1984-07-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来より一般に使用されているホールエレメン
トを利用した角度変換器の原理説明図、第２図は本考案
の一実施例の構成説明図、第３図は第２図の要部組立図
、第４図は第２図実施例の電気回路ブロック図、第５図
、第６図、第７図は第２図実施例の動作説明図、第８図
は本考案の他の実施例の構成説明図である。１ａ・・・・・・磁気回路、１１．１２・・曲永久磁石
、１３・・・・・・ヨーク、１４・・・・・・ベース、
１５・・曲入力軸、３・・・・・・ホールユニット、３
１・・曲ホルダー、３１１．３１２・・・・・・溝、３
２．３３・・曲ポールエレメント、４・・・・・・本体
ベース、５・・・・・・発振回路、６・・・・・・位相
器、７・・・・、・・加算回路、８・・回位相差検出手
段、８１．８２・・・・＝・コンパレーター、８３・・
・・・・フリップフロップ回路、８４・・・・・・平滑
回路、９・・・・・・出力端子、０・・・・・・入力軸
、θ・・曲入力回転変位、Ｂ・・・・・・磁束密度。Figure 1 is an explanatory diagram of the principle of an angle converter using a Hall element that has been commonly used in the past, Figure 2 is an explanatory diagram of the configuration of an embodiment of the present invention, and Figure 3 is an assembly of the main parts of Figure 2. 4 is an electric circuit block diagram of the embodiment shown in FIG. 2, FIGS. 5, 6, and 7 are operation explanatory diagrams of the embodiment shown in FIG. 2, and FIG. 8 is another embodiment of the present invention. FIG. 1a...magnetic circuit, 11.12...curved permanent magnet, 13...yoke, 14...base,
15... Song input shaft, 3... Hall unit, 3
1...Track holder, 311.312...Groove, 3
2.33... Curved pole element, 4... Body base, 5... Oscillation circuit, 6... Phase shifter, 7... Adder circuit, 8...Time phase difference detection means, 81.82...=...Comparator, 83...
...Flip-flop circuit, 84... Smoothing circuit, 9... Output terminal, 0... Input shaft, θ... Song input rotational displacement, B... ...magnetic flux density.

Claims

[Scope of utility model registration request]

Two Hall elements are arranged coaxially with the input shaft to which rotational displacement is applied, and are arranged near the input shaft so that they are orthogonal to each other and are less susceptible to the influence of magnetic flux density distribution, and a common magnetic flux density is applied to the Hall elements. and a magnetic circuit configured such that the direction of magnetic flux rotates relative to the Hall element around the input shaft in response to an input rotation angle, and the Hall element has a phase difference of 90 degrees from each other. an oscillation circuit that applies an alternating current voltage to each of the Hall elements; an adder circuit that adds the output voltages of the two Hall elements; and a phase difference between the output of the adder circuit and one of the outputs of the power supply circuit. An angle converter comprising phase difference detection means.