查詢結果分析
來源資料
頁籤選單縮合
題名 | 土壤水分感測器之性能研究=Study on the Performance of the Soil Moisture Sensors |
---|---|
作者 | 陳加忠; | 書刊名 | 農業工程學報 |
卷期 | 43:4 1997.12[民86.12] |
頁次 | 頁87-94 |
分類號 | 434.25 |
關鍵詞 | 灌溉; 自動化; 感測; 控制器; Irrigation; Automation; Sensor; |
語文 | 中文(Chinese) |
中文摘要 | 此研究中在田間測定三型土壤水分計之作業性能。國產的訊號處理裝置用以轉換 Watermark 感測元件之電阻訊號為張力電壓訊號,此裝置具有線性校正功能。 研究結困顯 示不同機具而來自相同廠商生產之土壤水分計其感測性能並無顯著差異。利用國產之訊號處 理設備因具有線性校正功能因此比原廠之 Watermark 感測器有更佳性能。 此型水分計之怠 測土壤張力計之量測值彼此差異範圍為 5-10 cb。耐久試驗結果顯示此型水分計之穩定性。 |
英文摘要 | The performance tests for three types of soil moisture sensors were evaluated in the fi-eld condition. A signal conditioning device was designed with the linear calibration function to convert the resistance of Watermark sensing element to the voltage values propotional to the tension. The signal processing device also could perform the calibration. The results of this research indicated the same type of soil moisture sensor had no significant difference of its performance. The Watermark element attached with the domestic processing device which had the linear calibrating operation had the better performance than those of the Watermark sensor manufactured by Irrometer factory. The difference between the soil tension with the tension meter and Watermark element attached with domestic signal conditioning device could maintain in the range from 5 to 10cb. The long-term test reveal the stable performance of this sensors. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。