abem Terrameter LS Instruction Manual
Also see for Terrameter LS: User manual
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Contents
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ABEM Terrameter LS103Pole-dipole 6 6Schlumberger 7 10Equatorial dipole-dipole 8 13General surface array 11 11Tomography 12 12Potential 14 14Multiple gradient array 15 15If an array not defined in the list is to be used, array code 11 for general surface arraymay be used. Alternatively array code 0 for resistance can be used, which means thatresistance instead of apparent resistivity is displayed during measurement. If arraycode 12 is used only the electrode numbers, and not the coordinates are saved, whichis suitable for for instance measurements involving boreholes (see section ongeometry files below).12.12 Geometry FilesThe electrode coordinates for a borehole measurement are entered via a geometry file(textfile with XYZ file extension), with the following format:n-cablesHeader cable 11 x1,1 y1,1 z1,12 x1,2 y1,2 z1,2…n1 x1,n1 y1,n1 z1,n1Header cable 21 x2,1 y2,1 z2,12 x2,2 y2,2 z2,2…n2 x2,n2 y2,n2 z2,n2Header cable 31 x3,1 y3,1 z3,12 x3,2 y3,2 z3,2…n3 x3,n3 y3,n3 z3,n312.13 Standard Spread FilesA number of standard spread files are supplied with Terrameter LS. It should be notedthat new files can be added and that the list may thus not be complete. The followingspreads are included with a standard firmware installation.Name Description2x21 Set of 2 electrode cables with 21 take-outs each2x32 increasing Set of 2 electrode cables with 32 take-outs each2x32 mirrored Set of 2 electrode cables with 32 take-outs each4x21 Set of 4 electrode cables with 21 take-outs each4x16 Set of 4 electrode cables with 16 take-outs each |
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