实际光源 meaning in English

available light

At the beginning of this thesis , the principle of fiber fabry - perot strain sensor is presented briefly , and the influence on the results of the peak - to - peak algorithm , brought by the spectrum distribution of light source , wavelength quantification or the noise in the output of the fabry - perot sensor is investigated . the limitation of the peak - to - peak algorithm is pointed out
论文首先阐述了光纤法珀应变传感器的测量原理，分析了实际光源光谱的非均匀分布、波长量化和传感器输出信号中的噪声等对波长域的条纹峰值解调算法的应变测量结果的影响，深入分析了条纹峰值解调算法的局限性。