JPS5726765A - Current synthesizer - Google Patents
Current synthesizerInfo
- Publication number
- JPS5726765A JPS5726765A JP10208480A JP10208480A JPS5726765A JP S5726765 A JPS5726765 A JP S5726765A JP 10208480 A JP10208480 A JP 10208480A JP 10208480 A JP10208480 A JP 10208480A JP S5726765 A JPS5726765 A JP S5726765A
- Authority
- JP
- Japan
- Prior art keywords
- current
- polarization
- plane
- magnetic field
- polarizing
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
- G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
- G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE:To obtain a device which synthesizes a current precisely without any synthesis error due to energizing impedance like a current transformer, by using a polarizing rotary element and by utilizing light as a medium. CONSTITUTION:Currents I1 and I2 are flowed to energizing coils 22a and 22b of a polarizing rotary device 20 to establish a magnetic field in the axial direction of a magnetic optical rotatory body 21. The plane of polarization of the optical rotatory body 21 turns in proportion to the intensity of the magnetic field according to the Faraday effect. A synthesized current regenerating device 40 is equipped with an analyzing element 44 and unless the plane of polarization of light polarized by a polarizing element 32 is turned, no light passes through the element 44. As the plane of polarization is turned by a rotary device 20, the light reaches a photoelectric element 45 via the analyzing element 44 to generate electromotive force. It is amplified to obtain a current I3 flowing to a closed circuit 48 including an energizing coil 42 and a load 47. This current I3 produces a magnetic field around a magnetic optical rotatory body 41 in the device 40 to turn the plane of polarization in the opposite direction to the device 20. In this case, I3=I1+I2 holds for adequate coefficients.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10208480A JPS5726765A (en) | 1980-07-25 | 1980-07-25 | Current synthesizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10208480A JPS5726765A (en) | 1980-07-25 | 1980-07-25 | Current synthesizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5726765A true JPS5726765A (en) | 1982-02-12 |
Family
ID=14317902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10208480A Pending JPS5726765A (en) | 1980-07-25 | 1980-07-25 | Current synthesizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5726765A (en) |
-
1980
- 1980-07-25 JP JP10208480A patent/JPS5726765A/en active Pending
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