Campbell Scientific TDR Probes CS605, CS610, CS630, CS635, CS640, CS645 - Manual (Page 19)

Appendix A. Discussion of TDR Probe Offset and a Simple Laboratory Method for Calculation
th WindowLeng •
1 datapoints
end
: end index
distance −
=
65 . 0 start
distance
= 4 . 3 end
distance
=
( )
p
distance p
V
end V
distance
start • La
: obeOffset Pr
+ − −
=
0 t ProbeOffse 086 . =
TABLE A-1. Dielectric permittivity
values for range of temperatures.
From equation [A5].
Temperature ( °C)
Dielectric
Permittivity
15 82.23
15.5 82.04
16 81.85
16.5 81.67
17 81.48
17.5 81.29
18 81.1
18.5 80.92
19 80.73
19.5 80.55
20 80.36
20.5 80.18
21 79.99
21.5 79.81
22 79.63
22.5 79.44
23 79.26
23.5 79.08
24 78.9
24.5 78.72
25 78.54
25.5 78.36
26 78.18
26.5 78
A-5