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題 名 | 應用電容式水份計量測濕穀含水率之研究=Moisture Measurement of Wet Grains Using Capacitance Meter |
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作 者 | 陳加忠; 曹之祖; 雷鵬魁; | 書刊名 | 農業工程學報 |
卷 期 | 42:2 1996.06[民85.06] |
頁 次 | 頁79-87+78 |
分類號 | 434.25 |
關鍵詞 | 穀物; 含水率; 電容式水份計; Grains; Moisture content; Capacitance meter; |
語 文 | 中文(Chinese) |
中文摘要 | 此研究中以烤箱法量測之含水率數值為標準值,用以比較國產電容式水份計之量測性能。以統計技術中偏差與標準差兩種統計量比較評估此型水份計之準確性與精確性。利用線性迴歸技術建立量測值與標準值之校正方程式以改善量測性能。研究結果顯示此型國產CD-3型水份計在32%(濕基)以下之量測範圍可藉由適當的方程式以改良量測準確性。最佳校正方程式為以量測值加以對數轉換之二項次方程式。不同之機具與不同的收穫年代對於量測性能之影響並不顯著。品種則有顯著之影響性。為確定此型水份計之量測準確性,品種必需建立特有之校正方程式。 |
英文摘要 | A domestic capacitance meter used in Taiwan was compared with the air-oven method to study its performance. The statistics of measured bias and variance are adopted as the criteria to decide the accuracy and precision. A non-linear calibration obtained from the relationship between measured values and standard values by regression technique was established to improve the performance. The results from the study suggest that the measuring performance of the domestic CD-3 capacitance meters can be improved by an adequate calibration equation with the moisture range below 32% wet basis. The best calibration equation was the polynomial equation with the transferred form of logarithmic reading values. The factors of unit-to-unit and harvested years of samples do not have the significant effect on the measured performance. To ensure the good measuring performance, it is necessary to consider the effect of variety on the calibration equation. |
本系統中英文摘要資訊取自各篇刊載內容。