Characterization of Pulsed Electromagnetic Induction (EMI) System
Abstract
The following report summarizes efforts on "Characterization of Pulsed Electromagnetic Induction (EMI) System". Specifically the effort focused on evaluating the operational characteristics of the EM-63 pulsed electromagnetic induction (EMI) system manufactured and sold by Geonics Ltd. at 8-1745 Meyerside Drove, Mississsauga, Ontario L5T 1C6 (Web site: http://www.geonics.com). A significant part of the effort was consumed in returning the EM-63 to the manufacturer for repairs. In particular we discovered that the transmitter current pulse did not conform to the manufacture's specifications. As discussed in greater detail below, the correct transmitter current waveform consists of a positive current pulse followed (temporally) by a negative current pulse that in turn is followed by a short duration positive current pulse. Measurements indicated that the transmitter current waveform on our EM-63 had only a positive current waveform. It was necessary to return the EM-63 to the manufacturer twice for repairs since we discovered that the transmitter current waveform was still not correct after the first repair effort.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 2007
- Accession Number
- ADA482588
Entities
People
- Lloyd S. Riggs
Organizations
- Auburn University