JPH0241138U - - Google Patents
Info
- Publication number
- JPH0241138U JPH0241138U JP12069588U JP12069588U JPH0241138U JP H0241138 U JPH0241138 U JP H0241138U JP 12069588 U JP12069588 U JP 12069588U JP 12069588 U JP12069588 U JP 12069588U JP H0241138 U JPH0241138 U JP H0241138U
- Authority
- JP
- Japan
- Prior art keywords
- magnetostrictive
- slit
- torque sensor
- shaft
- magnetostrictive shaft
- 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 4
- 230000035699 permeability Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図ないし第３図は本考案の実施例を示し、
第１図はトルクセンサの縦断面図、第２図は第１
図中の要部拡大図、第３図は磁気回路図、第４図
ないし第８図は従来技術を示し、第４図はトルク
センサの縦断面図、第５図は検出回路の回路構成
図、第６図はトルクと出力電圧の関係を示す特性
線図、第７図は第５図中の要部拡大断面図、第８
図は磁気回路図である。
１……磁歪シヤフト、２，３……スリツト、４
……コイル固定部材、７，８……検出コイル、９
……ブリツジ回路、１１……差動増幅器、２１…
…被覆層（高透磁率層）、２２，２３……スリツ
ト孔、ＲＡ，ＲＢ，ＲＣ，ＲＤ，ＲＥ，ＲＦ……
磁気抵抗。
1 to 3 show embodiments of the present invention,
Figure 1 is a longitudinal cross-sectional view of the torque sensor, Figure 2 is the
Figure 3 is a magnetic circuit diagram, Figures 4 to 8 show the prior art, Figure 4 is a vertical cross-sectional view of the torque sensor, and Figure 5 is a circuit configuration diagram of the detection circuit. , Fig. 6 is a characteristic diagram showing the relationship between torque and output voltage, Fig. 7 is an enlarged sectional view of the main part in Fig. 5, and Fig. 8 is a characteristic diagram showing the relationship between torque and output voltage.
The figure is a magnetic circuit diagram. 1... Magnetostrictive shaft, 2, 3... Slit, 4
...Coil fixing member, 7, 8...Detection coil, 9
... Bridge circuit, 11 ... Differential amplifier, 21 ...
...Covering layer (high magnetic permeability layer), 22, 23...Slit hole, RA, RB, RC, RD, RE, RF...
Magnetic resistance.
Claims (1)
を有する磁歪シヤフトと、該磁歪シヤフトの外周
側にスリツトと径方向で対向するように配設され
た検出コイルと、該検出コイルによるインダクタ
ンスの変化を電圧出力に変換する検出回路とから
なる磁歪式トルクセンサにおいて、前記磁歪シヤ
フトにはスリツトが刻設された部位の外表面に位
置して該磁歪シヤフトよりも透磁率の高い材料か
らなる高透磁率層を形成したことを特徴とする磁
歪式トルクセンサ。 A magnetostrictive shaft having a slit carved at a predetermined angle on its outer surface, a detection coil disposed on the outer circumferential side of the magnetostrictive shaft so as to face the slit in the radial direction, and a change in inductance due to the detection coil. In the magnetostrictive torque sensor, the magnetostrictive shaft has a highly permeable material located on the outer surface of a portion in which a slit is formed and is made of a material having a higher magnetic permeability than the magnetostrictive shaft. A magnetostrictive torque sensor characterized by forming a magnetic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12069588U JPH0241138U (en) | 1988-09-14 | 1988-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12069588U JPH0241138U (en) | 1988-09-14 | 1988-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241138U true JPH0241138U (en) | 1990-03-22 |
Family
ID=31367032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12069588U Pending JPH0241138U (en) | 1988-09-14 | 1988-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572064A (en) * | 1991-07-12 | 1993-03-23 | Nissan Motor Co Ltd | Shaft to be measured and manufacture of torque detecting apparatus and shaft to be measured |
-
1988
- 1988-09-14 JP JP12069588U patent/JPH0241138U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572064A (en) * | 1991-07-12 | 1993-03-23 | Nissan Motor Co Ltd | Shaft to be measured and manufacture of torque detecting apparatus and shaft to be measured |
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