JPS6432135A - Magnetostrictive stress measuring instrument - Google Patents
Magnetostrictive stress measuring instrumentInfo
- Publication number
- JPS6432135A JPS6432135A JP62189255A JP18925587A JPS6432135A JP S6432135 A JPS6432135 A JP S6432135A JP 62189255 A JP62189255 A JP 62189255A JP 18925587 A JP18925587 A JP 18925587A JP S6432135 A JPS6432135 A JP S6432135A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- coils
- stress
- segments
- circuit
- 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
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
PURPOSE:To simultaneously measure the values and directions of the circumferential stress and axial stress of a shaft to be measured by transducing the stress of the shaft into magnetic strain and transducing the magnetic strain into the variation quantity of inductance, and performing addition and subtraction. CONSTITUTION:The grinder unit 3 of an industrial robot 1 has plural stages of grooves 7a and 8a formed in the peripheral surface of the output shaft 6 of a motor which drives a grindstone 4 to obtain segments 7 and 8. Then coils 9, 10, 11, and 12 are mounted in a cylindrical yoke 15 without contacting the outer peripheries of the segments 7 and 8. Here, the coils 9 and 11 are incorporated in a bridge circuit 13, and a subtracter 25 is connected and the coils 10 and 12 are incorporated in a bridge circuit 14 and an adder 29 is connected. Consequently, when a torque T or axial force F is applied to the shaft 6, magnetic strain is generated in the segments 7 and 8, the coils 9-12 vary in inductance, and the circuits 13 and 14 are unbalanced, so the circuit 13 outputs the value and direction of the circumferential stress of the shaft 6 and the circuit 14 outputs the value and direction of the axial stress of the shaft 6.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189255A JPH0820318B2 (en) | 1987-07-29 | 1987-07-29 | Magnetostrictive stress measuring device for grinder unit |
GB8818015A GB2210460B (en) | 1987-07-29 | 1988-07-28 | Magnetostrictive stress measurement apparatus |
US07/225,391 US4833926A (en) | 1987-07-29 | 1988-07-28 | Magnetostrictive stress measurement apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189255A JPH0820318B2 (en) | 1987-07-29 | 1987-07-29 | Magnetostrictive stress measuring device for grinder unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6432135A true JPS6432135A (en) | 1989-02-02 |
JPH0820318B2 JPH0820318B2 (en) | 1996-03-04 |
Family
ID=16238232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62189255A Expired - Lifetime JPH0820318B2 (en) | 1987-07-29 | 1987-07-29 | Magnetostrictive stress measuring device for grinder unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0820318B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5247485A (en) * | 1990-10-04 | 1993-09-21 | Kabushiki Kaisha Toshiba | Memory device |
JPH06102143A (en) * | 1992-02-03 | 1994-04-15 | Teledyne Ind Inc | Distortion sensor |
JP2017096826A (en) * | 2015-11-26 | 2017-06-01 | 日本精工株式会社 | Torque measurement sensor and bearing with sensor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61190838U (en) * | 1985-05-21 | 1986-11-27 |
-
1987
- 1987-07-29 JP JP62189255A patent/JPH0820318B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61190838U (en) * | 1985-05-21 | 1986-11-27 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5247485A (en) * | 1990-10-04 | 1993-09-21 | Kabushiki Kaisha Toshiba | Memory device |
JPH06102143A (en) * | 1992-02-03 | 1994-04-15 | Teledyne Ind Inc | Distortion sensor |
JP2017096826A (en) * | 2015-11-26 | 2017-06-01 | 日本精工株式会社 | Torque measurement sensor and bearing with sensor |
Also Published As
Publication number | Publication date |
---|---|
JPH0820318B2 (en) | 1996-03-04 |
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