Accession Number:
AD0781839
Title:
In situ Measurements of the Electric Rock Parameters by Means of a Wenner Four-Point Arrangement.
Descriptive Note:
Scientific rept. no. 1,
Corporate Author:
INNSBRUCK UNIV (AUSTRIA) ELECTRONICS LAB
Personal Author(s):
Report Date:
1974-04-03
Pagination or Media Count:
38.0
Abstract:
Different electrode materials for rock contacting purposes were tested and their efficiencies were compared. For a wattless collection of the potentials of the two inner points of a Wenner four-point arrangement impedance transformers with very high input resistance and low capacitance were applied. Earthing and screening problems were investigated. Measurements were conducted in a frequency range of 0.01 ... 10,000 Hz, the current density in the centerpoint of the arrangement amounted to j 10 to the minus 10 power Acm sq. Author
Descriptors:
Subject Categories:
- Geology, Geochemistry and Mineralogy