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Inductive Sensors

Reduction (Correction) Factors for Ferrite Core Sensors

These correction factors apply to standard inductive sensors when a nonferrous target is being detected. The correction factors are nominal values. Deviations may be due to variations in oscillator frequency, alloy composition, purity and target geometry.

Aluminium foil:              1.00
Stainless steel:  0.60 to 1.00
Mercury:            0.65 to 0.85
Lead:                  0.50 to 0.75
Brass:                 0.35 to 0.50
Aluminium:         0.35 to 0.50
Copper:              0.25 to 0.45


These Correction factors do not apply to Uprox+ ® sensors. These sensors see all metals at the same range. We can also supply “nonferrous only” sensors. These sensors will selectively detect nonferrous targets at the rated operating distance. They will not detect ferrous targets; however, ferrous targets positioned between them and a nonferrous target may mask the nonferrous target. The rated operating distance of these sensors is not subject to the correction factors that apply to standard inductive sensors.