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DP-J型低温膨胀仪和电阻测试仪是连续自动记录温度—膨胀量曲线和温度—电阻变化量曲线的仪器,它的炉温要求程序控制,实现线性地升降温或阶梯形升降温程序。为此,我们研制了低温简便温度程序控制器。该控制器用于DP-J型低温热膨胀仪(4.2K-300K)和电阻测试仪(77K-600K),实现恒速升降温和阶梯形的升降温。升降温的速率可在0.5℃～50℃/分范围内任意选择,恒温控制精度不低
DP-J low-temperature dilatometer and resistance tester is continuous and automatic record of temperature-expansion curve and temperature-resistance curve of the instrument, its temperature requires program control, to achieve linear temperature rise or step-down temperature program. To this end, we have developed a low temperature simple temperature program controller. The controller for the DP-J-type low-temperature dilatometer (4.2K-300K) and resistance tester (77K-600K), to achieve a constant temperature rise and gentle step-shaped cooling. The rate of heating and cooling can be 0.5 ℃ ~ 50 ℃ / min range of arbitrary choice, temperature control accuracy is not low