JPS5784365A - Light-employing voltage measuring apparatus - Google Patents
Light-employing voltage measuring apparatusInfo
- Publication number
- JPS5784365A JPS5784365A JP55161262A JP16126280A JPS5784365A JP S5784365 A JPS5784365 A JP S5784365A JP 55161262 A JP55161262 A JP 55161262A JP 16126280 A JP16126280 A JP 16126280A JP S5784365 A JPS5784365 A JP S5784365A
- Authority
- JP
- Japan
- Prior art keywords
- light
- electrooptical
- photofiber
- electrooptically
- covered
- 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
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
- G01R15/241—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE:To make it possible to conduct stable measurement of voltages ranging widely from low voltage to high voltage, by forming an electrooptically crystallized body by laminating electrooptically crystallized sheets which are provided with transparent electrodes and covered by insulating resin. CONSTITUTION:Transparent electrodes 7 and 7' are formed on the both sides of an electrooptical crystal 3 which is thin and optically polished, and after leads 8 and 8' are attached by conductive paste, the entire body is covered by transparent resin 9. This electrooptical element 10 is tightly laminated, a voltage to be measured is impressed from an object to be measured 6. On the other hand, light from a light source 14 is applied to a polarizer 2 through a photofiber 12 and a rod lens 13' and phase-modulated to oval deflection by the electrooptical element 10. Light put out from the element 10 is applied to a photodiode 11 through a lambda/4 wavelength plate 4, a light detector 5, the rod lens 13' and a photofiber 12, and then, it is converted to an electric signal. It is possible, by so doing, to minimize loss of light without expanding total length and execute measurement by a high input impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55161262A JPS5784365A (en) | 1980-11-14 | 1980-11-14 | Light-employing voltage measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55161262A JPS5784365A (en) | 1980-11-14 | 1980-11-14 | Light-employing voltage measuring apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5784365A true JPS5784365A (en) | 1982-05-26 |
| JPH036465B2 JPH036465B2 (en) | 1991-01-30 |
Family
ID=15731748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55161262A Granted JPS5784365A (en) | 1980-11-14 | 1980-11-14 | Light-employing voltage measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5784365A (en) |
-
1980
- 1980-11-14 JP JP55161262A patent/JPS5784365A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036465B2 (en) | 1991-01-30 |
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