长期以来,温度灯的分度和使用均由大容量的蓄电池组供电,给工作带来很多不便。能否以晶体管直流稳流电源代替蓄电池组供电呢?这需要我们进一步研究。其中,特别需要分析电源中交流成分对温度灯的影响。本文以温度测量精度要求不超过0.1℃的情况进行分析。稳流电源中,交流成分对温度灯分度的影响,一般有以下三种情况: 1.温度灯丝有很大的热惰性; 2.灯丝没有热惰性; For a long time, the indexing and use of temperature lamps are powered by large capacity battery packs, which bring a lot of inconvenience to the work. Can the transistor DC steady flow power supply instead of battery power it? This needs our further study. Among them, it is especially necessary to analyze the influence of the AC component on the temperature lamp in the power supply. In this paper, the temperature measurement accuracy of not more than 0.1 ℃ for analysis. The steady flow of power, the AC component of the temperature indexing, generally have the following three conditions: 1. The temperature of the filament has a great thermal inertia; 2. The filament is not hot inertia;