JPS55117912A - Control bar position detection unit - Google Patents
Control bar position detection unitInfo
- Publication number
- JPS55117912A JPS55117912A JP2598479A JP2598479A JPS55117912A JP S55117912 A JPS55117912 A JP S55117912A JP 2598479 A JP2598479 A JP 2598479A JP 2598479 A JP2598479 A JP 2598479A JP S55117912 A JPS55117912 A JP S55117912A
- Authority
- JP
- Japan
- Prior art keywords
- drive axis
- winding
- temperature
- control bar
- induced voltage
- 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
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To compensate change of a relative permeability dependent upon temperature change of a drive axis to make it possible to measure the position of a control bar with a high precision, by providing a winding for temperature compensation on the drive axis of a magnetic material interlocked with the control bar.
CONSTITUTION: The inductive coupling rate of primary winding 2 and secondary winding 5 is changed by the insertion position of drive axis 1 between primary winding 2 and secondary winding 5, thereby generating an induced voltage corresponding to the insertion position of drive axis 1 in secondary winding 5. This induced voltage is subjected to full-wave rectification in 6 and is amplified in 9 after smoothing in 7 and 8. Control circuit 12 compares the induced voltage of temperature compensation winding 11 with reference voltage 13 and controls the gain of amplifier 9 by the output proportional to the difference between both voltages. Then, the gain of amplifier 9 is reduced and increased for temperature rise and temperature lowering of drive axis 1 respectively, thus outputting a voltage proportional to the position of drive axis 1 between coils 2 and 5 independently of temperature change of drive axis 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2598479A JPS55117912A (en) | 1979-03-05 | 1979-03-05 | Control bar position detection unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2598479A JPS55117912A (en) | 1979-03-05 | 1979-03-05 | Control bar position detection unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55117912A true JPS55117912A (en) | 1980-09-10 |
Family
ID=12180972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2598479A Pending JPS55117912A (en) | 1979-03-05 | 1979-03-05 | Control bar position detection unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55117912A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02264814A (en) * | 1989-01-11 | 1990-10-29 | Nartron Corp | Linear position sensor |
-
1979
- 1979-03-05 JP JP2598479A patent/JPS55117912A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02264814A (en) * | 1989-01-11 | 1990-10-29 | Nartron Corp | Linear position sensor |
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