法国科学家卡斯特勒在1955年研发了将光抽运技术和磁共振技术结合的光泵磁共振技术，其中，光抽运使得磁能级上的粒子数分布发生反转，增强磁共振，同时，使用光探测的方法将灵敏度提高了七八个量级。本文采用DH807型光泵磁共振实验仪器（仪器号201503），探究光抽运过程中影响抽运信号的因素。 本文首先分析了光抽运信号的变化与成因，指出可能影响光抽运信号的因素为抽运磁场和偏振光状态。然后分别改变抽运磁场的大小、方向和偏振光状态，测量光抽运信号的幅度，建立相关模型和公式，对光抽运进行分析与讨论，并与实验结果相印证。

In 1955, French scientists A. Kastler invented the optical pump magnetic resonance technology that combine optical pumping technology and magnetic resonance technology. Among it, the optical pumping causes the number of particles to be reversed by the magnetic energy level, increasing particles involved in magnetic resonance. At the same time, by using light detection method the sensitivity raises by seven or eight orders of magnitude. In this paper, the optical pump magnetic resonance experiment instrument (instruct number 201503) of DH807 type is used to explore the factors affecting the pumping signal during the light pumping. This paper firstly analyzes the changes and causes of light pumping signals, and points out that the factors that may affect the light pumping signal are the pumping magnetic field and polarized light state. And then respectively change the size of the pumping magnetic field, direction and polarization state. Measure the size of the optical pumping signals. Establish related model and formula of optical pumping to analyze and discuss, and compare with experimental results.