- 期刊
配置自動加壓調整裝置之雜糧含水率檢測系統之研製
Development of Moisture Content Measurement System with Automatic Compression Regulator for Upland Crops
摘要
本論文應用時間區域反射法（Time Domain Reflectometry, TDR）與頻率區域反射法（Frequency Domain Reflectometry, FDR）原理建置具備自動壓實機構雜糧的含水率檢測系統。壓實機構係利用直流馬達與導螺桿搭配測力元件（Load Cell）實現自動壓實的流程，以滿足TDR與FDR感測器數據測量的技術需求。對比各式雜糧測量數據與對應標準烤箱法量測之結果，本論文以回歸分析所建立校正檢量曲線為核心，並結合HMI（Human Machine Interface）人機介面，提供雜糧品項以及語言種類的選項，設計完成非破壞式高含水率雜糧水分檢測系統，實現快速、多工與即時作業的可能性。針對紅豆、大豆，毛豆等雜糧品項之試驗結果顯示，本論文採用TDR/FDR量測技術搭配所建置對比於標準烤箱法之校正檢量曲線，判定係數R^2值可達到0.9以上，並縮短雜糧含水率檢測時間至10分鐘以內，節省量測時間20分鐘以上，含水率的量測範圍則由35%提高至65%。已可充分滿足高含水率雜糧檢測之應用需求。
並列摘要
This study based on the techniques of TDR (Time Domain Reflectometry) and FDR (Frequency Domain Reflectometry) is to establish a prompt measurement system of moisture content for fresh upland crops mainly. The developed system with prompt, multi-variety applicable and almost real-time performance is composed of TDR or FDR sensor, auto-pressing mechanism, alternative calibration curves for various upland crops as the measurement core, an automatically feeding sample cup and a friendly human-machine interface (HMI). The validation results of red bean, soybean and edamame show that the coefficients of determination R^2 of the calibration curves of the TDR and FDR to the standard oven method can reach more than 0.9, the detection time of the moisture content of miscellaneous grains is speeded up to less than 10 minutes and the measurement range of moisture content is able to be extended to 65% by this novel moisture measurement system with which made the prompt measurement of high moisture content of fresh upland crops possible.