本文阐述太阳电池光谱响应的双光路测量法,以及采用等能方法测量的原理和性能,将测量结果进行了对比,证明双光路等能方法测量太阳电池的光谱响应,可以克服光源随时间变化带来的误差,也可以克服光源能量分布不均而在两端引入的误差.它还有一个显著的优点,对于灵敏度为常数的真空热电偶来说,同一波长下能量与输出之间不一定是线性的,而采取了等能方法,也可 In this paper, the dual optical measurement method of solar cell spectral response and the principle and performance of isometry method are described. The measurement results are contrasted. It is proved that the dual optical path equalization method can measure the spectral response of the solar cell, It also has the significant advantage that for a vacuum thermocouple with a constant sensitivity, the difference between the energy and the output at the same wavelength is not necessarily Linear, and can take other methods, but also