JPS59132364A - 回転速度検出装置 - Google Patents
回転速度検出装置Info
- Publication number
- JPS59132364A JPS59132364A JP765783A JP765783A JPS59132364A JP S59132364 A JPS59132364 A JP S59132364A JP 765783 A JP765783 A JP 765783A JP 765783 A JP765783 A JP 765783A JP S59132364 A JPS59132364 A JP S59132364A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- magnetic
- magnetized
- back plate
- boss
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 53
- 230000004907 flux Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 230000005405 multipole Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 26
- 229920005989 resin Polymers 0.000 abstract description 26
- 238000004804 winding Methods 0.000 abstract description 4
- 239000003302 ferromagnetic material Substances 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical group N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 2
- 230000005415 magnetization Effects 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 235000011511 Diospyros Nutrition 0.000 description 1
- 244000236655 Diospyros kaki Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP765783A JPS59132364A (ja) | 1983-01-19 | 1983-01-19 | 回転速度検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP765783A JPS59132364A (ja) | 1983-01-19 | 1983-01-19 | 回転速度検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59132364A true JPS59132364A (ja) | 1984-07-30 |
JPH0425496B2 JPH0425496B2 (enrdf_load_stackoverflow) | 1992-05-01 |
Family
ID=11671885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP765783A Granted JPS59132364A (ja) | 1983-01-19 | 1983-01-19 | 回転速度検出装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59132364A (enrdf_load_stackoverflow) |
-
1983
- 1983-01-19 JP JP765783A patent/JPS59132364A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0425496B2 (enrdf_load_stackoverflow) | 1992-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5654600A (en) | Motor with recess for index position detection | |
KR100285656B1 (ko) | 모터 | |
US4501997A (en) | Magnetization for brushless direct current outer rotor motor | |
JPS59132364A (ja) | 回転速度検出装置 | |
JPH0425497B2 (enrdf_load_stackoverflow) | ||
JPS5928866A (ja) | 着磁ヨ−ク | |
KR920000216B1 (ko) | 자기식 회전검출장치 | |
JPS60125143A (ja) | モ−タ− | |
JP2522865Y2 (ja) | 小型モータ | |
JPS6139841A (ja) | Dcブラシレスモ−タ | |
JPH10232141A (ja) | 磁性体の着磁方法及び該磁性体を用いた磁気式ポテンショメータ | |
JP2617921B2 (ja) | ブラシレスモータ | |
JP2627848B2 (ja) | 永久磁石ディスク | |
JPS6387166A (ja) | ヒステリシスカツプリング | |
JPH0412652Y2 (enrdf_load_stackoverflow) | ||
US4626945A (en) | Magnetic head | |
JPH0614777B2 (ja) | ボイスコイルモ−タ | |
JP2520664Y2 (ja) | ターンテーブル装置 | |
JPS58179148A (ja) | 速度検出器を有するモ−タ | |
JPH0470865B2 (enrdf_load_stackoverflow) | ||
EP0670501A1 (en) | Magnetic transducer | |
JPS61904A (ja) | 垂直磁気記録再生ヘツド | |
JPS59227015A (ja) | 垂直磁化磁気ヘツド | |
JPH0797895B2 (ja) | 速度検出器付モータ | |
JPH1023726A (ja) | スピンドルモータ |