Estonian DC Fiber Optic Current Sensor
Utilizing a single-ended optical fiber wrapped around the current conductor, FOCS exploits the (). The FOCS can measure uni- or bi-directional up to 600 kA, with an accuracy within ±0.
Read More
Fiber Optic Sensor for High Voltage Measurement
Fiber-optic transducers are ideally adapted to high-voltage environments as they are highly immune to electro-magnetic interference and there is no galvanic connection between the sensor head on high-voltage and substation electronics. Fiber optic sensors have several unique advantages that make them suitable candidates for this demanding application. For over 20 years, laboratories, R&D centers, and industries have trusted Montena for measuring and monitoring ultra-fast electromagnetic pulses.
Read More
Fiber Optic Current Sensing Technology
A fiber-optic current sensor (FOCS) is a device designed to measure direct current. Explore pioneering discoveries, insightful ideas and new methods from leading researchers in the field. The Faraday effect is the rotation of the polarization state of light, β, when it passes through a magnetic field, B, induced by an.
Read More
Side-thrown fiber optic sensor for temperature measurement
High-definition temperature sensing based on the natural Rayleigh backscatter in optical fiber delivers a virtually continuous line of temperature measurements with sub-millimeter spatial resolution.
Read More
Fiber Optic Temperature Sensor Fabrication Method
We demonstrate the fabrication of fiber-optic Fabry-Perot interferometer (FPI) temperature sensors by bonding a small silicon diaphragm to the tip of an optical fiber using low melting point glass powders heated by a 980 nm laser on an aerogel substrate. Besides, they exhibit high measurement speeds and high sensitivity due to the large thermal diffusivity and the large thermo-optic coefficient of silicon and the small size of the sensing element. Fiber Bragg gratings are very efficient at temperature sensing and are easy to implement; however, they always need additional techniques to discriminate the Bragg shifts by temperature and by strain/compression and they also require expensive phase-masks.
Read More