
Time constant
Time constant is a measure of a target’s combined conductivity and inductance. A target with high conductivity (low resistance) and high inductance will have a long time constant (i.e. gold ingot). A target with low conductivity (high resistance) and low inductance will have a short time constant (i.e. fine jewellery). Minelab metal detectors are capable of detecting the full range of time constants.
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