摘要：溫度測量是工業、農業、國防和科研等部門最普遍的測量項目。它在工農生產、現代科學研究及高新技術開發過程中也是一個極其普遍而重要的測量參數。
溫度測量在保證產品質量，提高生產效率，節約能源，安全生產，促進國民經濟發展等諸多方面起到了至關重要的作用。對于一些對溫度測量的精度有一定要求企業和單位來說，但如果直接去購買超高精度的溫度測量儀器不僅是浪費資金，更是沒有必要。所以研制和開發具有一定高精度的溫度測量儀是非常有必要的。運用鉑電阻和單片機來開發高精度溫度測量系統在國內也是有一些單位在研發，但各單位所能達到的測溫精度卻有很大的差異，畢竟用單片機來開發溫度測量系統，對于硬件的設計和軟件編程有很高的要求。可以說，真正通過鉑電阻和單片機來實現一定的測溫精度并作為一個產品推出的，在國內還是相當少的。本設計的溫度測量系統，測量精度可達到0.03℃，分辨率為0.001℃，可以說在國內同類產品中很少能達到這樣的要求，有很好的市場價值。
關鍵詞：溫度測量；高精度；單片機
Abstract:Temperature measurement is the universal subject for industry, agriculture, Ministry of Defense, scientific research and so on. It’s also a universal and important testing parameter in the development of agriculture, modern scientific research and high and new technology. Temperature measurement plays a very important role in many aspects such as: quality assurances boost productivity, energy conservation, safety in production, promote state economic development. As to some enterprise and public institution who have certain requires for accuracy of temperature measurement, it’s nonsense and waste money to buy the high accuracy temperature measurement equipment. So is necessarily to research and develop the high quality temperature measuring set. There are some institutions in home using platinum resistor and singlechip (MCM) to research and develop high precision temperature measurement system. As the requires for hardware design and software assembler is very high, the precision result differ much. In fact there are few product that use platinum resistor and singlechip (MCM) to control ( reach) accuracy. This design for temperature measurement system is rather advance, the precision can reaches to 0.03℃, resolving capability: 0.001℃.
Keywords：temperature measurement；high precision；singlechip
