Many different factors can influence the outcomes of light-weight deflectometer (LWD) tests. Some of these factors are specific to the type of the used LWD, while others are related to the testing conditions. This paper summarizes the findings of a detailed investigation into the relationships between variables altering the measurements of the light-weight deflectometer test. Field testing was performed to investigate the effect of the sensing configuration (measurement of plate vs ground surface) and testing configuration (in terms of applied load magnitude, number of loadings, and moisture content). To accomplish this objective, a number of in situ LWD and moisture content investigations were conducted on two selected construction materials, namely, sandy subgrade soil and unbound granular material. Considering the multiple influencing factors involved in this study and the material dependency, relationships between the plate deformations and ground deformations could be developed, something which will help in overcoming the standardization problem of various LWD devices and their effect on the compaction control process.

许多不同的因素会影响轻型挠度计 (LWD) 测试的结果。其中一些因素特定于所用 LWD 的类型，而其他因素与测试条件有关。本文总结了对改变轻型挠度计测试测量值的变量之间关系的详细调查结果。进行了现场测试以研究传感配置（板与地面的测量）和测试配置（根据施加的负载大小、负载数量和水分含量）的影响。为实现这一目标，对两种选定的建筑材料（即沙质路基土和未结合的颗粒材料）进行了多次现场 LWD 和含水量调查。