温度控制，要求本系统满足以下要求:①要无磁性,保证记录仪工作不受干扰 ②要操作简单稳定可

靠,能够连续工作 ③本系统的温度工作点要在一定范围内任意调节,满足以不同的温度为起

点的加温要求 ④功耗要低,作到合理节约能源。-Temperature control requirements of the system meet the following requirements: ① to non-magnetic, and ensure uninterrupted work logger ② simple to operate a stable and reliable, able to work consecutive ③ temperature of the system operating point to a certain extent arbitrary regulation, to meet different the temperature of the heating requirements as a starting point ④ power to be kept low to achieve a reasonable energy conservation.