JPH03130559U - - Google Patents
Info
- Publication number
- JPH03130559U JPH03130559U JP3902690U JP3902690U JPH03130559U JP H03130559 U JPH03130559 U JP H03130559U JP 3902690 U JP3902690 U JP 3902690U JP 3902690 U JP3902690 U JP 3902690U JP H03130559 U JPH03130559 U JP H03130559U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- magnetic field
- rotation
- reference value
- rotating body
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の一実施例に係わる回転検出回
路の構成を示すブロツク図、第２図は同実施例に
おける基準電圧回路の構成の一例を示す図、第３
図は従来の回転検出回路の構成を示す図、第４図
はセンサ入力と比較器出力のタイミング示す信号
チヤートである。
１１……回転円盤、１２……突起部、１３……
電磁ピツクアツプ（磁界変化検出手段）、１４…
…比較器（信号判別手段）、１５……基準電圧回
路（基準値設定手段）、１７……回転数補償回路
（回転数補償手段）。
FIG. 1 is a block diagram showing the configuration of a rotation detection circuit according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of the configuration of a reference voltage circuit in the same embodiment, and FIG.
This figure shows the configuration of a conventional rotation detection circuit, and FIG. 4 is a signal chart showing the timing of sensor input and comparator output. 11...Rotating disk, 12...Protrusion, 13...
Electromagnetic pickup (magnetic field change detection means), 14...
... comparator (signal discrimination means), 15 ... reference voltage circuit (reference value setting means), 17 ... rotation speed compensation circuit (rotation speed compensation means).
Claims (1)
部が通過する際の磁界変化を検出する磁界変化検
出手段と、 前記磁界変化検出手段によつて検出された磁界
変化、及び基準値に基づいて前記回転体の回転を
示す回転検出信号を出力する信号判別手段と、 前記信号判別手段にから出力される信号に基づ
いて、前記回転体の回転数に応じた補償信号を出
力する回転数補償手段と、 前記回転検出信号、及び前記補償信号に基づい
て、前記信号判別手段において用いられる前記基
準値を設定する基準値設定手段と、 を具備したことを特徴とする回転検出回路。[Claims for Utility Model Registration] Magnetic field change detection means for detecting changes in the magnetic field when a protrusion made of a magnetic material provided on the periphery of a rotating body passes; and a magnetic field detected by the magnetic field change detection means. signal discrimination means for outputting a rotation detection signal indicating the rotation of the rotating body based on the change and a reference value; and compensation according to the rotation speed of the rotating body based on the signal output from the signal discrimination means. The present invention is characterized by comprising: rotation speed compensating means for outputting a signal; and reference value setting means for setting the reference value used in the signal discrimination means based on the rotation detection signal and the compensation signal. Rotation detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3902690U JPH03130559U (en) | 1990-04-13 | 1990-04-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3902690U JPH03130559U (en) | 1990-04-13 | 1990-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03130559U true JPH03130559U (en) | 1991-12-27 |
Family
ID=31547557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3902690U Pending JPH03130559U (en) | 1990-04-13 | 1990-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03130559U (en) |
-
1990
- 1990-04-13 JP JP3902690U patent/JPH03130559U/ja active Pending
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