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Journal of Sensors
/
2018
/
Article
/
Tab 3
/
Research Article
Dielectric Characteristics of Unsaturated Loess and the Safety Detection of the Road Subgrade Based on GPR
Table 3
Reflection amplitude under different moisture contents on the loess interface.
ε
r
= 5
ε
r
= 10
ε
r
= 20
ε
r
= 30
ε
r
= 40
ε
r
= 50
Amplitude maximum
124.37
173.19
214.77
235.61
248.89
258.37
Amplitude minimum
−212.89
−288.34
−351.61
−383.03
−402.97
−417.21