| Abstract: | An improved 4-channel electrical resistivity well-logging system for use with a passive probe with electrodes arranged in the ‘normal‘ configuration has been designed and fabricated by Westinghouse Electric Corporation to meet technical specifications developed by the U.S. Geological Survey. Salient features of the system include solid-state switching and current regulation in the transmitter circuit to produce a constant-current source square wave, and synchronous solid-state switching and sampling of the potential waveform in the receiver circuit to provide an analog dc voltage proportions to the measured resistivity. Technical specifications and design details are included in this report. |
| Genre: | USGS Numbered Series |
| ProdID: | 11068 |
| Citation Author: | Scott, James Henry; Farstad, Arnold J. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 24, [4] leaves :ill. ;28 cm.; (28 p., 4 sheets PGS) |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 77-144 |
| Citation Search Results Text: | Electrical resistivity well-logging system with solid-state electronic circuitry; 1977; OFR; 77-144; Scott, James Henry; Farstad, Arnold J. |
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| Citation Year: | 1977 |
| Type: | citation/reference |
| Text: | Electrical resistivity well-logging system with solid-state electronic circuitry; 1977; OFR; 77-144; Scott, James Henry; Farstad, Arnold J. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1977/0144/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1977/0144/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
