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介绍了６０５０Ｘ１型时域反射仪（ＴＤＲ）的基本结构和测定土壤含水率的原理，通过试验分析了它对导棒材料性质及导棒长度的灵敏性。结果表明，用铜和不锈钢做波导棒效果基本一致，导棒实际长度与输入长度的微小偏差对含水率的测量结果影响很小，且导棒越长影响越小
The basic structure of the 6050X1 time-domain reflectometer (TDR) and the principle of soil moisture content determination were introduced. Its sensitivity to the material properties of the guide rod and the length of the guide rod was analyzed through experiments. The results show that copper and stainless steel waveguide rod basically the same effect, the actual length of the guide rod and the input length of the small deviation of the moisture content of the measurement results have little effect, and the longer the guide rod the smaller the impact