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Section 4: Basic measurements
Model 6517B Electrometer Reference Manual
For circular electrodes:
P = D
0
D
= D
+ g (refer to the "Circular electrode dimensions" figure to determine dimension D
).
0
1
0
Figure 46: Circular electrode dimensions
Volume resistivity
Volume resistivity is defined as the electrical resistance through a cube of insulating material. When
expressed in ohm-centimeters, it would be the electrical resistance through a one-centimeter cube of
insulating material. If expressed in ohm-inches, it would be the electrical resistance through a one-
inch cube of insulating material.
The Model 6517B automatically performs the following calculation and displays the volume resistivity
reading:
4-24
6517B-901-01 Rev. C / August 2015
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