Table 1:
Measured parameters.
Times
Transmitter
Receiver
d1
(mm)
d2
(mm)
Electrode (+)
Electrode (-)
Electrode (+)
Electrode (-)
1
1
2
4
3
20
20
2
1
2
4
3
20
40
3
1
2
4
3
20
60
4
2
3
1
4
20
20
5
2
3
1
4
40
20
6
2
3
1
4
60
20
7
2
3
1
4
20
20
8
2
3
1
4
40
20
9
2
3
1
4
60
20