JPH0245417U - - Google Patents
Info
- Publication number
- JPH0245417U JPH0245417U JP12428088U JP12428088U JPH0245417U JP H0245417 U JPH0245417 U JP H0245417U JP 12428088 U JP12428088 U JP 12428088U JP 12428088 U JP12428088 U JP 12428088U JP H0245417 U JPH0245417 U JP H0245417U
- Authority
- JP
- Japan
- Prior art keywords
- core member
- main body
- sensor
- detection coil
- sensor main
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図および第２図は本考案の第１の実施例を
示し、第１図はクランク角センサの縦断面図、第
２図は検出信号を示す特性線図、第３図は第２の
実施例を示すクランク角センサの縦断面図、第４
図は第３の実施例を示す第３図と同様の縦断面図
、第５図は第４の実施例を示す第３図と同様の縦
断面図、第６図および第７図は従来技術を示し、
第６図はクランク角センサの縦断面図、第７図は
検出信号の特性線図である。
１…回転板（回転部材）、１Ａ…歯部、３…ク
ランク角センサ、４…ケーシング（センサ本体）
、５，２１…コイルボビン、６…永久磁石、７，
５１…コア部材、７Ａ，５１Ａ…大径部、７Ｂ，
５１Ｂ…小径部、７Ｃ，５１Ｃ…先端面、８…磁
性部材、９…検出コイル、２１，３１，４１…キ
ヤツプ、２１Ａ，３１Ａ，４１Ａ…蓋部、２１Ｂ
，３１Ｂ，４１Ｂ…筒部、２２，３２，４２，５
２…エアギヤツプ。
1 and 2 show a first embodiment of the present invention, FIG. 1 is a vertical sectional view of a crank angle sensor, FIG. 2 is a characteristic diagram showing a detection signal, and FIG. 3 is a second embodiment of the crank angle sensor. Vertical cross-sectional view of the crank angle sensor showing an example, No. 4
The figure is a longitudinal sectional view similar to FIG. 3 showing the third embodiment, FIG. 5 is a longitudinal sectional view similar to FIG. 3 showing the fourth embodiment, and FIGS. 6 and 7 are conventional techniques. shows,
FIG. 6 is a longitudinal sectional view of the crank angle sensor, and FIG. 7 is a characteristic line diagram of the detection signal. 1... Rotating plate (rotating member), 1A... Teeth, 3... Crank angle sensor, 4... Casing (sensor body)
, 5, 21... Coil bobbin, 6... Permanent magnet, 7,
51... Core member, 7A, 51A... Large diameter portion, 7B,
51B... Small diameter part, 7C, 51C... Tip surface, 8... Magnetic member, 9... Detection coil, 21, 31, 41... Cap, 21A, 31A, 41A... Lid part, 21B
, 31B, 41B...Cylinder part, 22, 32, 42, 5
2...Air gap.
Claims (1)
久磁石と、該永久磁石の軸方向一側に位置して前
記センサ本体に設けられ、先端側が回転部材に近
接して配設されるコア部材と、該コア部材に巻回
され、前記回転部材の回転を検出する検出コイル
と、非磁性の金属材料によつて有蓋筒状に形成さ
れ、該検出コイルとコア部材の先端面とを覆うよ
うに前記センサ本体に取付けられたキヤツプとか
らなる電磁式回転センサにおいて、前記キヤツプ
とコア部材の先端面との間には微小なエアギヤツ
プを形成したことを特徴とする電磁式回転センサ
。 A sensor main body, a permanent magnet provided in the sensor main body, and a core member located on one axial side of the permanent magnet and provided in the sensor main body, the tip side of which is disposed close to the rotating member. , a detection coil that is wound around the core member and detects the rotation of the rotating member; and a detection coil formed of a non-magnetic metal material in the shape of a covered cylinder so as to cover the detection coil and the distal end surface of the core member. An electromagnetic rotation sensor comprising a cap attached to the sensor body, characterized in that a minute air gap is formed between the cap and the tip surface of the core member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124280U JP2517747Y2 (en) | 1988-09-22 | 1988-09-22 | Electromagnetic rotation sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124280U JP2517747Y2 (en) | 1988-09-22 | 1988-09-22 | Electromagnetic rotation sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0245417U true JPH0245417U (en) | 1990-03-28 |
| JP2517747Y2 JP2517747Y2 (en) | 1996-11-20 |
Family
ID=31373879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988124280U Expired - Lifetime JP2517747Y2 (en) | 1988-09-22 | 1988-09-22 | Electromagnetic rotation sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517747Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH053910U (en) * | 1991-06-28 | 1993-01-22 | 日本電子機器株式会社 | Electromagnetic rotation sensor |
| JP4739106B2 (en) * | 2006-04-26 | 2011-08-03 | アルプス電気株式会社 | Sensor device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129669A (en) * | 1983-12-13 | 1985-07-10 | ヴアブコ・ヴエステイングハウス・フア−ルツオイクブレムゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Pulse revolution-number transmitter |
-
1988
- 1988-09-22 JP JP1988124280U patent/JP2517747Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129669A (en) * | 1983-12-13 | 1985-07-10 | ヴアブコ・ヴエステイングハウス・フア−ルツオイクブレムゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Pulse revolution-number transmitter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH053910U (en) * | 1991-06-28 | 1993-01-22 | 日本電子機器株式会社 | Electromagnetic rotation sensor |
| JP4739106B2 (en) * | 2006-04-26 | 2011-08-03 | アルプス電気株式会社 | Sensor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2517747Y2 (en) | 1996-11-20 |