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

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

Subject Categories:

  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE