JPS5513867A - Position indicator - Google Patents
Position indicatorInfo
- Publication number
- JPS5513867A JPS5513867A JP8658978A JP8658978A JPS5513867A JP S5513867 A JPS5513867 A JP S5513867A JP 8658978 A JP8658978 A JP 8658978A JP 8658978 A JP8658978 A JP 8658978A JP S5513867 A JPS5513867 A JP S5513867A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- coils
- temperature
- moving iron
- moving
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE: To make it possible to indicate the position of a moving iron core under no influence of a temperature by differentially amplifying the detection voltage of adjacent concentric secondary coil provided alternately between alternating-current driving primary coils whose axes agree with the center of the moving iron core axis.
CONSTITUTION: Primary coils 12 to 16, whose axes are coaxial with moving iron core 1, moving vertically inside of magnetic substance are driven in series by alternating cuttents and at similar secondary coils 17 to 21 provided alternately with coils 12 to 16, induced currents are generated which vary up to its maximum value according to the movement of iron core 1 and does not vary afterward when the iron core rises in the same direction. Voltages developed across resistances 21a, 20a, 19a... by induced current between adjacent secondary coils 21 and 20, 20 and 19,... are applied to differential amplifiers 21a, 20a, 19a... to adjust the gains of amplifiers 21a, 20a, 19a... so that diodes 21b, 20b... corresponding at the time of a low-temperature limit will come on even by the operation output. Consequently, then come on even at a high temperature and the position of the moving iron core for adjusting a reactor fuel rod can accurately be indicated without reference to broad-range variation in temperature.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8658978A JPS5513867A (en) | 1978-07-14 | 1978-07-14 | Position indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8658978A JPS5513867A (en) | 1978-07-14 | 1978-07-14 | Position indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5513867A true JPS5513867A (en) | 1980-01-31 |
Family
ID=13891186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8658978A Pending JPS5513867A (en) | 1978-07-14 | 1978-07-14 | Position indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5513867A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728202A (en) * | 1980-06-18 | 1982-02-15 | Westinghouse Electric Corp | Position detector |
| JPS60147375U (en) * | 1984-03-08 | 1985-09-30 | 油谷鉄工株式会社 | hydraulic pneumatic tools |
| JPS62204108A (en) * | 1986-02-27 | 1987-09-08 | ウエスチングハウス・エレクトリック・コ−ポレ−ション | Position indicator |
| JPS62180705U (en) * | 1987-04-08 | 1987-11-17 | ||
| JPH0382901A (en) * | 1989-08-26 | 1991-04-08 | Sukegawa Electric Co Ltd | Induction type conductor detector |
| WO1993022618A1 (en) * | 1992-04-28 | 1993-11-11 | Kabushiki Kaisha Ace Denken | Metal body detector for detecting position of metal body |
| JPH0724747A (en) * | 1993-06-30 | 1995-01-27 | Asahi Kinzoku Kogyo Kk | Torque sensor and wrench provided with torque sensor |
-
1978
- 1978-07-14 JP JP8658978A patent/JPS5513867A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728202A (en) * | 1980-06-18 | 1982-02-15 | Westinghouse Electric Corp | Position detector |
| JPS60147375U (en) * | 1984-03-08 | 1985-09-30 | 油谷鉄工株式会社 | hydraulic pneumatic tools |
| JPS62204108A (en) * | 1986-02-27 | 1987-09-08 | ウエスチングハウス・エレクトリック・コ−ポレ−ション | Position indicator |
| JPS62180705U (en) * | 1987-04-08 | 1987-11-17 | ||
| JPH0382901A (en) * | 1989-08-26 | 1991-04-08 | Sukegawa Electric Co Ltd | Induction type conductor detector |
| WO1993022618A1 (en) * | 1992-04-28 | 1993-11-11 | Kabushiki Kaisha Ace Denken | Metal body detector for detecting position of metal body |
| US5564696A (en) * | 1992-04-28 | 1996-10-15 | Kabushiki Kaisha Ace Denken | Metal object detection system for detecting the position of a metal object |
| JPH0724747A (en) * | 1993-06-30 | 1995-01-27 | Asahi Kinzoku Kogyo Kk | Torque sensor and wrench provided with torque sensor |
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