期刊名称:International Journal on Smart Sensing and Intelligent Systems
印刷版ISSN:1178-5608
出版年度:2020
卷号:7
期号:5
页码:1-5
DOI:10.21307/ijssis-2019-076
出版社:Massey University
摘要:This paper describes an empirical transform between the propagation time (tp) data obtained from a non invasive Time Domain Reflectometry (TDR) sensor to the percentage moisture content . θ v within two different road making basecourse aggregate material. Results show that a simple quadratic fit between t p and θ v can be given leading to a maximum error in the estimate of 0.55%. It is also shown that the dielectric model underlying each of the basecourses is different enough to warrant the use of a unique quadratic function (i.e. different quadratic coefficients) for each.