Abstract : radiate thermometer uses a high definitive operation circuit in the modulation and linerization of weak optical signals . the theory of colorimetry was used in measuring the temperature . analogic channel and digital interfaces were added in order to expand the instrument . a kind of double channel ' s photocolorimeter including its hardware and software is introduced 文摘:辐射测温计采用高精度运算电路，对光弱信号进行调制和线性化处理，运用比色法原理对温度进行检测.为了便于仪器扩展，增加了模拟量输出和数字接口，并对光纤式双通道比色高温仪的硬件与软件的关键部分作了简要介绍
