JPH0321967U - - Google Patents

Info

Publication number
JPH0321967U
JPH0321967U JP7914889U JP7914889U JPH0321967U JP H0321967 U JPH0321967 U JP H0321967U JP 7914889 U JP7914889 U JP 7914889U JP 7914889 U JP7914889 U JP 7914889U JP H0321967 U JPH0321967 U JP H0321967U
Authority
JP
Japan
Prior art keywords
rotation speed
speed detection
magnetic paint
rotor
magnetize
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
Application number
JP7914889U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7914889U priority Critical patent/JPH0321967U/ja
Publication of JPH0321967U publication Critical patent/JPH0321967U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図は本考案の一実施例の断面図、第２図は
ロータ側のロータリートランスの底面図、第３図
は磁性塗料の着磁状態を示す断面図、第４図は従
来のドラムモータの断面図、第５図はそのＦＧコ
イル、ＦＧマグネツトの平面図である。 ３ａ……ＦＧコイルパターン、１１……軸、１
２……アツパードラム、１４……ロアードラム、
１６，１８……コイル、１７，１９……ロータリ
ートランス、２０……磁性塗料、２１……基板。

Claims (1)

    【実用新案登録請求の範囲】
  1. ステータとロータの何れか一方に取付けられて
    いる回転数検出コイルパターンに対面して、他方
    に磁性塗料を塗布し、これを表面がＮ極、Ｓ極が
    交互になるように着磁したことを特徴とする回転
    数検出装置。
JP7914889U 1989-07-06 1989-07-06 Pending JPH0321967U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7914889U JPH0321967U (ja) 1989-07-06 1989-07-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7914889U JPH0321967U (ja) 1989-07-06 1989-07-06

Publications (1)

Publication Number Publication Date
JPH0321967U true JPH0321967U (ja) 1991-03-06

Family

ID=31623052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7914889U Pending JPH0321967U (ja) 1989-07-06 1989-07-06

Country Status (1)

Country Link
JP (1) JPH0321967U (ja)

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