摘要
目的:研制精密恒温水循环系统,以保证半导体激光器在恒定温度下正常工作。方法:采用PT100传感器、恒流源激励电路、V-F转换器、单片机和加热器等电路研制恒温循环水温度控制系统,运用PID控制原理,通过精心选择PID的各种参数,实现高精度的恒温控制。结果:恒温循环水温度控制系统温控的测量精度达到±0.05℃。结论:该恒温循环水温度控制系统可以保证半导体激光器的正常工作温度。
Objective To provide Laser generator with a precision constant-temperature environment. Methods This system was developed on the bases of PT100 sensor circuit, MCU and SSR. The inputting PT100 voltage was first amplified and deflected, and then delivered to AD650 to perform WF. The outputting frequency was measured with high precision by TO port of MCU C8051F020, and the micro-controller calculated the result and transmitted PID output signal by 16 bit PWM to heater.Results This precision constant-temperature water circulator was gifted with an error within ±0.05℃.Conclusion This precision constant-temperature water circulator can make an ideal temperature environment available for laser generator. [Chinese Medical Equipment Journal,2008,29（6） ：60-61,63]
出处
《医疗卫生装备》
CAS
2008年第6期60-61,63,共3页
Chinese Medical Equipment Journal
基金
空军总医院青年资助课题
关键词
恒温
激光器
控制
constant temperature
laser generator
control
