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Table T3. Measurement performance specifications of the arcVISION, Expedition 343.

Measurement
Transmitter-receiver spacing (inch) Transmitter-receiver spacing (inch)
Accuracy (%, mS/m)
Range (Ωm)
16
22
28
34
40
16
22
28
34
40
R = 1.0 Ωm Depth of investigation (radius, inch) Vertical resolution (ft)    
Phase shift resistivity at 2 MHz 13 14 15 17 18 0.7 0.7 0.7 0.7 0.7 ±2, ±0.3 0.2–60/60–3000
Phase shift resistivity at 400 kHz 17 19 22 25 27 1 1 1 1 1 ±2, ±2.0 0.1–10/10–100
Attenuation resistivity at 2 MHz 19 22 24 26 29 1.8 1.8 1.8 1.8 1.8 ±3, ±1.5 0.2–25/25–50
Attenuation resistivity at 400 kHz 27 30 33 36 38 3 3.5 4 4 4 ±3, ±10 0.1– 3/3–10
R = 10.0 Ωm Depth of investigation (radius, inch) Vertical resolution (ft)    
Phase shift resistivity at 2 MHz 18 22 25 28 30 1 1 1 1 1    
Attenuation shift resistivity at 2 MHz 31 34 36 38 40 4 5 6 6 6    

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