基于智能手机光传感器的偏振实验研究

Experimental Study of Polarization Based on Smartphone Light Sensor

随着智能手机的快速发展,传感技术的不断进步,为重构物理实验的内容和方法提供了新的思路。本研究利用phyphox驱动智能手机光传感器进行了光的偏振实验,首先通过验证偏振光的马吕斯定律证明了该方法的可行性,然后利用线偏振光在蔗糖溶液中传播的旋光效应测量了其旋光率[α蔗糖]_(589)^(20)=66.0°·cm^(3)·dm^(-1)·g^(-1),并以此为基础测量了蔗糖溶液的浓度,进一步证实了该方法的有效性。若需测量未知旋光溶液的浓度,只需将测量出的旋光角度代入“旋光角度-浓度”关系式即可得到溶液浓度。

With the rapid development of smartphones and the continuous advancement of sensing technology,new ideas have been provided for reconstructing the content and methods of physical experiments.In this study,we conducted experimental research on polarized light using a smartphone light sensor driven by phyphox.Initially,we confirmed the feasibility of our method by verifying Marius'law of polarized light.Subsequently,we measured the specific rotations of sucrose solutionusing the optical rotation effect,their values is.Furthermore,based on these measurement results,the concentrations of sucrose solution were measured,further confirming the effectiveness of our method.Additionally,if need to measure the concentration of an unknown optical rotation solution,simply substitute the measured rotation angle into the"rotation angle-concentration"formula to obtain the solution concentration.