关键词: 磁致旋光, 脉冲磁场, 线性度, 计量溯源性

Abstract: Aiming at the lack of domestic means of fixing and traceability of pulsed magnetic field，develops a high-accuracy pulsed magnetic field measurement device based on Faraday magnetotelluric effect.Taking a pulsed magnetic field generator as an example，the feasibility of using the magnetotelluric effect for the traceability of strong pulsed magnetic field is verified by examining the linearity between the magnetic field strength of the pulsed magnetic field generator and the deflection angle of the affected polarized light，and the results show that there is a significant sinusoidal fitting relationship between the pulsed magnetic field strength and the amplitude of the change of light intensity.The polarized light intensity is used as an intermediate medium to link the pulsed magnetic field and the standard constant magnetic field，and two methods of optical range ratio and optical intensity ratio are proposed to solve the traceability problem of the standard device for metrological examination of the strong pulsed magnetic field.

Key words: Magnetotelluric, Pulsed magnetic field, Linearity, Metrological traceability