March 30, 2021 by Steve Gidman
With a metal detector, metals that have one or both conductive magnetic characteristics — such as brass, bronze, ferrous metals, etc. — will create a detectable signal. Non-magnetic stainless steel is harder to pick up — it’s a bad conductor — and certain food products with added iron, moisture, salt and acids tend to mask metal detection. Known as the “product effect,” this can impact inspection performance.