本文介紹了基于ADuC841 單片機(jī)和半導(dǎo)體加熱制冷片的小型溫度控制系統(tǒng)設(shè)計(jì)。本
設(shè)計(jì)采用半導(dǎo)體加熱制冷片作為溫度控制的執(zhí)行部件，溫度傳感器DS18B20 進(jìn)行溫度檢測并提供反饋信號(hào)，在控制器單片機(jī)上實(shí)現(xiàn)增量式PID 控制算法。本設(shè)計(jì)的應(yīng)用為實(shí)現(xiàn)快速、精確的小型溫度控制系統(tǒng)提供了一種體積小、功耗低、經(jīng)濟(jì)有效的解決方案。
關(guān)鍵詞：溫度傳感器；單片機(jī)；半導(dǎo)體加熱制冷片；增量式控制
Abstract: A design of benchtop temperature control system based on MCU ADuC841 and
semiconductor heating-refrigerating chips is introduced in this paper. In this design,
semiconductor heating-refrigerating chips are employed as executive component for temperature control. Temperature sensor DS18B20 is used to detect the temperature and provide feedback.Incremental PID algorithm is implemented on the controller MCU. This design and development indicates a small size, low power consumption and efficient operation solution to realize a fast and precise benchtop temperature control system.
Key words: temperature sensor ; MCU; differential amplifier; incremental control