基于專用溫度傳感的溫度檢測系統

摘 要 在現代工業領域溫度檢測系統是指用某種方式顯示出當前的環境溫度。傳

統使用PTC或NTC電阻作為溫度傳感器的方式在使用過程中存在著很多不足之

處比如所采集溫度的精度比較低、系統的可靠性差、設計難度較大、整體設計

成本較高等缺點已經無法滿足現代工業生產中高精度溫度控制的需求。而采用

專用溫度傳感器則可以在克服以上缺點很大程度上提高溫度檢測系統的性能。

本文闡述了一個基于專用溫度傳感器AD590的

高精度溫度檢測系統的設計

和實現過程。整個設計包括使用AD590的模擬溫度采集傳感器專用儀表放大

器AD620的信號處理系統由ADC0804構成的模數轉換電路采用AT89C52組

成的單片機系統數碼管顯示系統和整機所需的供電系統。

關鍵字溫度檢測系統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 錄 摘 要.............................................................Ⅰ

Abstract............................................................Ⅱ

目 錄.............................................................Ⅲ

1 緒論..............................................................1

1.1簡介.......................................................... 2

1.2 溫度控制系統的國內外現狀.................