掠射椭圆偏振谱学方法通过现场测量椭圆偏振参量Δ和Ψ能够反映电极过程的性质及变化规律.将电化学反应中的扩散层模型与掠射椭圆偏振实验体系相结合,提出了掠射椭圆偏振谱学方法的数理模型,对掠射椭圆偏振参量Δ和Ψ的物理化学意义做出了解释,认为电极表面附近的溶液扩散层对于椭圆偏振光既有相位延迟器的作用,又有振幅吸收器的作用;并应用一些实验结果,分析了电解液中电活性物质浓度和入射光束斑直径对掠射椭圆偏振参量的影响. The grazing elliptic spectroscopy method can measure the properties and variation of the electrode process by measuring ellipsometric parameters Δ and Ψ in situ. Combining the diffusion layer model of electrochemical reaction with the grazing elliptical polarization experimental system, the grazing ellipse The mathematical model of polarization spectroscopy explains the physico-chemical significance of grazing ellipsometric parameters Δ and Ψ. It is considered that the solution diffusion layer near the electrode surface has the effect of both the phase retarder and the amplitude absorption of elliptically polarized light The effect of electroactive substance concentration and incident beam spot diameter on grazing ellipsometry parameters was analyzed with some experimental results.