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本文采用低功耗,高性能CMOS8位单片机AT89S52作为微处理器,以半导体制冷原理与PID算法为控制基础,配以合理的毛细管温控循环管路,设计一个毛细管电泳毛细管温度控制模块。对毛细管电泳系统中的毛细管进行温度调节控制。使毛细管在低温下工作以消除电泳过程产生的焦耳热,降低或排除焦耳热效应的不利影响,提高毛细管电泳系统的精确度和重复性。
In this paper, low power, high performance CMOS 8-bit microcontroller AT89S52 as a microprocessor, based on the principle of semiconductor refrigeration and PID algorithm as the control basis, together with a reasonable capillary temperature control circuit, the design of a capillary electrophoresis capillary temperature control module. The capillary electrophoresis system capillary temperature control. The capillary tube to work at low temperatures to eliminate Joule heat generated during the electrophoresis process to reduce or eliminate the adverse effects of Joule heating to improve the accuracy and repeatability of capillary electrophoresis system.