标题：Design of high-precision measuring and control system for refrigerant with MSP430
作者：Gao, Zheng Zhong ;Wang, Ya Ping ;Liu, Long Ji ;Liu, Li Qiang ;Li, Yao
作者机构：[Gao, Zheng Zhong ;Wang, Ya Ping ;Liu, Li Qiang ;Li, Yao ] College of Information and Electrical Engineering, Shandong University of Science and Techn 更多
会议名称：2014 3rd International Conference on Intelligent System and Applied Material, GSAM 2014
会议日期：January 18, 2014 - January 19, 2014
来源：Advanced Materials Research
摘要：According to the practical requirements of filling refrigerants of refrigeration maintenance industries, an high-precision measuring and control system for refrigerant with MSP430 is designed in this paper. High-precision weighing sensor and high-performance amplifier are adopted in the hardware structure, and an improved amplitude-limiting and shake-disappearing filtering algorithm is used in the software data processing. The design is capable of not only achieving the purification and recycling of refrigerant effluent, but also conducting the functions of pressing, vacuumizing and leaking hunting of both high and low pressure. The actual results in the practical refrigeration maintenance industry show that this measuring and control system precision can reach0.5%, which is reliable in operation, good in stability and capable of solving the problem that the discharge of waste refrigerant may pollute the environment. © (2014) Trans Tech Publications, Switzerland.