具有自動標定功能的發(fā)酵罐多點溫度采集系統(tǒng)

摘要為系統(tǒng)地研究發(fā)酵罐內(nèi)的溫度分布，開發(fā)啤酒、制藥等行業(yè)所需的端面測溫傳感器，本文利用自制的測量多點溫度的傳感器，采用熱電阻自動標定、曲線分段擬合非線性校正和熱電阻矩陣網(wǎng)絡等多種處理方法及微功耗的單片機技術，設計了一種新型的計算機多點溫度采集系統(tǒng)。溫度測量精度達0.1℃，完全滿足系統(tǒng)精度要求。
關鍵詞溫度傳感器溫度分布自動標定非線性校正多點溫度測量
Abstract In order to systemically research temperature distribution in fermentor and develop end plate temperature transducer for brewing and pharmaceutical
industries，a computerized multipoints temperature collecting system is designed.The system adopts many processing methods and technologies，
e. g. ，self-made transducer for multipoints temperature measurement，automatic calibration with thermistor，curve piece-wise fitting non-linear correction，
RTD array network and single chip computer of micro power consumption，etc. The accuracy of the system is up to 0.1%，fully satisfying requirement
of the system.
Keywords Temperature transducer Temperature distribution Auto-calibration Non-linearity correction Multipoints temperature measurement