| Autor: |
A.H. Van der Wey, W.R. Rutgers, I.J. Laurensse, C.G.A. Koreman |
| Rok vydání: |
1989 |
| Předmět: |
|
| Zdroj: |
Sensors and Actuators. 17:181-186 |
| ISSN: |
0250-6874 |
| DOI: |
10.1016/0250-6874(89)80078-2 |
| Popis: |
The construction and use of optical sensors for the measurement of electric current and voltage is described. The voltage sensor uses the electrooptic effect of Bi 4 (GeO 4 ) 3. The range is ±6 kV with a signal-to-noise ratio of 1500 for a 10 MHz system. The temperature stability is better than 5% in the range 20 – 85 °C. Both fibre and bulk optical current sensors were investigated. The range, signal-to-noise ratio and temperature stability of the bulk sensor depend on the Faraday rotator used. Typical values are 2 kA, 2000 and 2.5% respectively. The use of the fibre current sensor as a fast lightning detector is demonstrated. The voltage and bulk current sensors are applied in a transformer protection system. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
