研究目的
To enhance the sensitivity of the sensing element and reduce linear birefringence in optical current sensors using rare-earth magneto-optical glass.
研究成果
The optimization of REMOG for OCS sensing elements significantly improves sensitivity and reduces linear birefringence. Optimal parameters include a specific glass length, shorter incident light wavelength (633 nm), and 30% rare-earth doping concentration, achieving a sevenfold increase in sensitivity compared to diamagnetic materials.
研究不足
The study focused on specific factors affecting REMOG performance, such as size, spatial position, wavelength of incident light, and doping concentration, without considering external temperature effects or glass base material variations.
1：Experimental Design and Method Selection:
Theoretical analysis and experimental data were combined to study the influences of glass size and spatial position, wavelength of incident light, and rare-earth doping concentration on OCS sensing element sensitivity.
2：Sample Selection and Data Sources:
REMOG with different lengths and doping concentrations was used, with data collected under varying excitation currents.
3：List of Experimental Equipment and Materials:
Laser diodes at wavelengths of 633 nm and 850 nm, sine-wave current generator, and various lengths of REMOG.
4：Experimental Procedures and Operational Workflow:
Applied 50 Hz sine-wave current at varying steps, recorded output response voltage for different excitation currents.
5：Data Analysis Methods:
Analyzed relationship between response voltage and excitation current, Verdet constant, and error ratios.
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