9:30 AM - 9:45 AM
[21a-E205-3] Ultra-compact Optical Current Sensor using Ferromagnetic Material
Keywords:Optical Current Sensor, Ferromagnetic Material, Faraday Effect
Optical sensors are applied for current measurement for control and protection of substations.
There are some advantage such as good electric insularion, small size, but the price is the bottleneck and it is not popular except in high voltage applications.
The development of signal processing technology makes it easy to compensate for disturbances such as temperature and distortion.
We have developed a low-cost oprical current sensor with an emphasis on simplifying the configuration without requiring high accuracy. The diameter of the sensor unit is about 1 mm and can be measured simply by placing it near the current path.
There are some advantage such as good electric insularion, small size, but the price is the bottleneck and it is not popular except in high voltage applications.
The development of signal processing technology makes it easy to compensate for disturbances such as temperature and distortion.
We have developed a low-cost oprical current sensor with an emphasis on simplifying the configuration without requiring high accuracy. The diameter of the sensor unit is about 1 mm and can be measured simply by placing it near the current path.