JPS60111271U

JPS60111271U - rotation detection device

Info

Publication number: JPS60111271U
Application number: JP20393383U
Authority: JP
Inventors: 中溝　博光; 持田　貴志
Original assignee: ソニー株式会社
Priority date: 1983-12-28
Filing date: 1983-12-28
Publication date: 1985-07-27

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〜第４図は従来のＦＧ／ＰＧ一体型回転検出器を
示し、第１図は固定側の検出導体パターンの路線図、第
２図は回転側のリングマグネットの着磁パターンを示す
平面図、第３図は位置検出信号（ＰＧ）及び速度検出信
号（ＦＧ）の波形図、第４図は位置検出用ＰＧ着磁部分
による速度検出信号に対する妨害を示す速度検出キャリ
アの周波数変調分をワウフラッタメータで観測したとき
の波形図である。第５図は第１図の導体パターンの一改
良例を示す参考図、第６図ａ　”　ｃは第５図の導体パ
ターン及び本考案の実施例の導体パターンと組み合わせ
て用いられる回転側マグネットの着磁パターン図、第７
図は本考案による検出導体パターンを示す路線図である
。なお図面に用いられた符号において、１・・・・・・リ
ング状マグネット、２・・・・・−ＰＧ検出導体、３，
４・・・・・・導体、５・・・・・・ＰＧ検出導体、６
・・・・・・ＰＧ着磁部分、７，８・・・・・・引出し
導体、９，１ｏ・・・・・・面導体、１１，１２・・・
・・・出力端、である。Figures 1 to 4 show a conventional FG/PG integrated rotation detector, Figure 1 is a route diagram of the detection conductor pattern on the fixed side, and Figure 2 shows the magnetization pattern of the ring magnet on the rotating side. A plan view, Figure 3 is a waveform diagram of the position detection signal (PG) and speed detection signal (FG), and Figure 4 is a frequency modulation component of the speed detection carrier showing interference with the speed detection signal by the magnetized part of the position detection PG. It is a waveform diagram when observed with a wow and flutter meter. Figure 5 is a reference diagram showing an improved example of the conductor pattern of Figure 1, and Figures 6a and 6c are diagrams of the rotating side magnet used in combination with the conductor pattern of Figure 5 and the conductor pattern of the embodiment of the present invention. Magnetization pattern diagram, 7th
The figure is a route map showing a detection conductor pattern according to the present invention. In addition, in the symbols used in the drawings, 1...Ring-shaped magnet, 2...-PG detection conductor, 3,
4...Conductor, 5...PG detection conductor, 6
PG magnetized part, 7, 8... Output conductor, 9, 1o... Surface conductor, 11, 12...
...This is the output end.

Claims

[Scope of utility model registration request]

A rotation detection device comprising a rotating side magnet and a stationary printed wiring board that face each other, the magnet having a subdivided magnetization array for speed detection in the circumferential direction, while the printed wiring board has It has speed detection conductor rows facing in the radial direction arranged at pitches corresponding to the circumferential direction, and position detection conductor rows with different pitches are formed in a part of the circumferential direction at different positions in the radial direction. On the other hand, a magnetized portion for position detection with a pitch corresponding to the row of conductors for position detection is formed in a part of the circumferential direction of the magnet, and the rows of conductors for speed detection are connected to form a series body. In addition, two signal lead-out conductors connected to both ends of the series body include a surface conductor having a width of a ring-shaped area facing the magnetized portion for position detection, and the magnetized portion for position detection A rotation detection device configured to face the surface conductor over almost the entire circumference except for facing the conductor row.