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本文主要介绍单板机TP801在光纤损耗谱特性自动测量系统中的应用。指出在汇编语言程序中,光纤损耗计算公式α=10log(P_2/P_1)/(L_1-L_2)中的对数运算可化成无穷幂级数求解,并详细分析了为满足系统精度要求,级数展开式中必须保留的项数,以及有关程序设计的其它一些问题。
This article mainly introduces the single board machine TP801 in the optical fiber loss characteristic automatic measurement system application. It is pointed out that in the assembly language program, the logarithm operation in the fiber loss calculation formula α = 10log (P_2 / P_1) / (L_1-L_2) can be solved into an infinite power series and analyzed in detail to meet the requirements of system accuracy, The number of items that must be retained in the expansion, as well as some other issues related to program design.