JPH0281434U - - Google Patents
Info
- Publication number
- JPH0281434U JPH0281434U JP16009788U JP16009788U JPH0281434U JP H0281434 U JPH0281434 U JP H0281434U JP 16009788 U JP16009788 U JP 16009788U JP 16009788 U JP16009788 U JP 16009788U JP H0281434 U JPH0281434 U JP H0281434U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- oscillation
- circuit
- outer periphery
- slits
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
第１図は本実施例による磁歪式トルクセンサを
示す回路構成図、第２図および第３図は従来技術
を示し、第２図は従来技術による磁歪式トルクセ
ンサの縦断面図、第３図は検出回路の回路構成図
、第４図はトルクと出力電圧の関係を示す特性線
図である。
１……磁歪シヤフト、２，３……スリツト、７
，８……検出コイル、２１，２２……発振回路、
２３，２４……Ｆ／Ｖ変換回路、２５……差動増
幅回路。
FIG. 1 is a circuit configuration diagram showing the magnetostrictive torque sensor according to the present embodiment, FIGS. 2 and 3 show the prior art, FIG. 2 is a vertical cross-sectional view of the magnetostrictive torque sensor according to the prior art, and FIG. 4 is a circuit configuration diagram of the detection circuit, and FIG. 4 is a characteristic diagram showing the relationship between torque and output voltage. 1... Magnetostrictive shaft, 2, 3... Slit, 7
, 8... detection coil, 21, 22... oscillation circuit,
23, 24...F/V conversion circuit, 25...differential amplifier circuit.
Claims (1)
ヤフトの外周に所定角をもつて複数個ずつ刻設さ
れた第１、第２のスリツトと、前記シヤフトの外
周において該第１、第２のスリツトと対応する位
置に設けられ、前記シヤフトに加えられるトルク
に応じてインダクタンスが変化する第１、第２の
検出コイルと、該第１、第２の検出コイルを含ん
で構成され、該第１、第２の検出コイルに発生す
るインダクタンスに応じた周波数を発振する第１
、第２の発振回路と、該第１、第２の発振回路か
ら出力された発振周波数をこれに応じた他の電気
信号に変換する第１、第２の信号変換回路と、該
第１、第２の信号変換回路から出力される信号差
からトルク検出信号を出力する差動回路とから構
成してなる磁歪式トルクセンサ。 A shaft formed of a magnetostrictive material, a plurality of first and second slits carved at a predetermined angle on the outer periphery of the shaft, and the first and second slits on the outer periphery of the shaft. The first and second detection coils are provided at positions corresponding to the shaft, and the inductance changes according to the torque applied to the shaft; The first detecting coil oscillates at a frequency corresponding to the inductance generated in the second detecting coil.
, a second oscillation circuit, first and second signal conversion circuits that convert the oscillation frequencies output from the first and second oscillation circuits into other electric signals corresponding thereto; A magnetostrictive torque sensor comprising a differential circuit that outputs a torque detection signal from a signal difference output from a second signal conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16009788U JPH0281434U (en) | 1988-12-09 | 1988-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16009788U JPH0281434U (en) | 1988-12-09 | 1988-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0281434U true JPH0281434U (en) | 1990-06-22 |
Family
ID=31441864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16009788U Pending JPH0281434U (en) | 1988-12-09 | 1988-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0281434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081573A1 (en) * | 2007-01-02 | 2008-07-10 | Azuma Systems Co., Ltd. | Magnetostriction torque sensor and torque detection method |
| JPWO2013089206A1 (en) * | 2011-12-13 | 2015-04-27 | 株式会社アミテック | Torque sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173434A (en) * | 1984-02-20 | 1985-09-06 | Mitsubishi Electric Corp | Torque detector |
-
1988
- 1988-12-09 JP JP16009788U patent/JPH0281434U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173434A (en) * | 1984-02-20 | 1985-09-06 | Mitsubishi Electric Corp | Torque detector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081573A1 (en) * | 2007-01-02 | 2008-07-10 | Azuma Systems Co., Ltd. | Magnetostriction torque sensor and torque detection method |
| WO2008081571A1 (en) * | 2007-01-02 | 2008-07-10 | Azuma Systems Co., Ltd. | Metal state detector and metal state detecting method |
| JPWO2008081571A1 (en) * | 2007-01-02 | 2010-04-30 | 株式会社アヅマシステムズ | Metal state detection device and metal state detection method |
| JPWO2013089206A1 (en) * | 2011-12-13 | 2015-04-27 | 株式会社アミテック | Torque sensor |
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