高精度梯度控温系统应用研究

Application Research of High Precision Gradient Temperature Control System

为满足某型号航天产品热真空试验中梯度控温需求,设计了一套高精度梯度控温系统。系统由热沉、加热器及配套的控温系统等组成,可实现载荷等产品梯度控温需求,控温精度可达±0.2℃。本文介绍了该系统控温结构的设计、温控结构框架、PID控温原理。采用该系统对产品分区进行梯度控温试验,试验中系统运行稳定可靠,结果表明该系统满足产品分区梯度控温需求,控温精度高。

In order to meet the requirement of gradient temperature control in the thermal vacuum test of a certain type of aerospace products, a set of high precision gradient temperature control system was designed. The system is composed of heat sink, heater and supporting temperature control system, etc., which can meet the gradient temperature control requirements of products such as load, and the temperature control precision can reach ±0. 2℃. This paper introduces the design of the temperature control structure, the frame of the temperature control structure and the PID temperature control principle of the system. The system is used to test the gradient temperature control in product zones, and it runs stably and reliably in the test.The experimental results show that the system can meet the requirements of gradient temperature control in product zones, and the temperature control accuracy is high.