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In this paper, an integrated optical sensing system qualified to measure DC E-field in industrial scene is proposed. The key components of the sensing system consist of a probe and a rotating arm. The probe rotates back and forth driven by the arm, so that the imposed DC E-field is converted to AC E-field. The output signal of the measuring system is approximately a sinusoidal type, with the peak-to-peak...
Integrated optical E-field sensors (IOESs) have been widely applied in electromagnetic field measurements. IOES based on common path interferometer (CPI) has remarkable advantages such that it has better temperature stability of the operating point and satisfying controllability of the optical bias. But the sensitivity of the CPI based IOES is so low that it cannot meet the sensitivity requirement,...
In order to meet the demands of lightning impulse electric field measurements in power system EMC, the design of an electro-optic integrated sensor is presented in this paper. The disadvantage of the Mach-Zehnder structure of the sensor is analyzed, and a novel structure is proposed to solve the problem. The sensor system is established and the calibration of the sensor is carried out. A maximum linear...
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