Campbell TDR Manuel télécharger pdf (Page 19)

Appendix A. Discussion of TDR Probe Offset and a Simple Laboratory Method for Calculation

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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

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 27 28

TDR Probes CS605, CS610 1
CS630, CS635, CS640, CS645 1
Warranty 3
Assistance 4
Table of Contents 5
Figures 6
CS635, CS640, CS645 7
5. Specifications 8
6. Installation 9
7. Operation 9
Conductivity 11
8. References 13
Connecting Cables 16
() () () () 17
B.1 Description of Method 21
Shorted 22
B.2.2 Determining K 22
ºC and is the electrical 23
Values 24

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