CAJ | 학술논문

以半导体器件的物理特性和电学特性为依据，设计了一种低温自启动恒温加热器，保证系统内部温度处于芯片正常工作范围内，并以尽可能少的元件构成完整的闭环控制系统。剃用PT100型金属铂电阻温度特性，使用三线制接法，采用STC12C5A16S2型单片机芯片对温度信号进行采集。使用工业上常用的RS485总线作为温度传输的通讯方式，以提高信息传输的可靠性。通过在高低温环境下实验，验证了该温度采集系统的可行性。
이반도체기건적물리특성화전학특성위의거，설계료일충저온자계동항온가열기，보증계통내부온도처우심편정상공작범위내，병이진가능소적원건구성완정적폐배공제계통。체용PT100형금속박전조온도특성，사용삼선제접법，채용STC12C5A16S2형단편궤심편대온도신호진행채집。사용공업상상용적RS485총선작위온도전수적통신방식，이제고신식전수적가고성。통과재고저온배경하실험，험증료해온도채집계통적가행성。
Based on the semiconductor physical and electrical properties of semiconductor devices, a low temperature self-start heater thermostat is designed for making sure the low temperature self-start and using as few components as possible to form a complete closed-loop control system. In this paper, using the temperature characteristic of PT100 metal platinum resistance with three wire connection and STC12C5A165S2 to acquire temperature signal, and 485 line of industry is used as communication of the temperature transfer in order to improving the reliability of information transmission. Through the thermal simulation experiment, the feasibility of the low-temperature self-start temperature acquisition system is verified.