毕业论文：基于专用温度传感器的温度检测系统01（终稿）.doc

摘 要 在现代工业领域温度检测系统是指用某种方式显示出当前的环境温度。传 统使用PTC或NTC电阻作为温度传感器的方式在使用过程中存在着很多不足之 处比如所采集温度的精度比较低、系统的可靠性差、设计难度较大、整体设计 成本较高等缺点已经无法满足现代工业生产中高精度温度控制的需求。而采用 专用温度传感器则可以在克服以上缺点很大程度上提高温度检测系统的性能。 本文阐述了一个基于专用温度传感器AD590的 高精度温度检测系统的设计 和实现过程。整个设计包括使用AD590的模拟温度采集传感器专用仪表放大 器AD620的信号处理系统由ADC0804构成的模数转换电路采用AT89C52组 成的单片机系统数码管显示系统和整机所需的供电系统。 关键字温度检测系统AD590AT89C52 Ⅰ Abstract The temperature check system in modern industry is that uses some special method to process and display the environmental temperature. Tradition uses PTC or NTC resistance to be using process to there be existing much defects as the temperature sensor way, supposes that what be detected the temperature has a bad accuracy, systematic reliability is bad, has much difficulties to design, and the cost of e ntire system is expensive. To use this method already unable satisfied modern industry produces the need being hit by the high-accuracy temperature under the control. Use the special temperature transducer could improve the systematic function of temperature detecting. This article elaborated the high-accuracy temperature having set forth a because of special temperature transducer AD590 checks the main body of a book systematically designing and realizing process. Entire design is included: Use the AD590 temperature transducer to detect the analog temperature, instrumentation amplifier AD620 signal process system, change the analog signal to digital signal circuit of ADC0804, the AT89C52 MUC system and the power system. Key wordtemperature check systemAD590AT89C52 Ⅱ 目 录 摘 要.............................................................Ⅰ Abstract............................................................Ⅱ 目 录.............................................................Ⅲ 1 绪论..............................................................1 1.1简介.................................