文献类型： 外文期刊
作者： Wang Cheng 1 ; Zhao Chunjiang 1 ; Qiao Xiaojun 1 ; Hou Ruifeng 1 ;
作者机构： 1.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
关键词： Time Domain Reflectometry; TDR; Soil Moisture
期刊名称：SENSOR LETTERS （ 影响因子：0.558； 五年影响因子：0.58 ）
ISSN： 1546-198X
年卷期： 2010 年 8 卷 1 期
页码：
收录情况： SCI
摘要： TDR (Time Domain Reflectometry, TDR) is an important method for measuring soil parameters, e.g., soil water content. In this work, a new TDR probe has been developed and a criterion for designing the probe proposed. Also, the structure of TDR probe and signal detection circuit is addressed in detail. Test results showed that there is a strong positive linear relationship between the reference measuring instrument and TDR instrument in a watering experiment. However, measurement accuracy of soil moisture was easily influenced by heterogeneity of soil.
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