Reading Small Samples
Eddy current instruments are technically not capable of measuring material smaller than the stated minimum sample size. However, with some effort, it is possible to use a Delcom meter to measure pieces of material smaller than the minimum sample size. In order to do this, the meter must be calibrated to the desired sample size and shape, a method must be used to consistently place samples in the sensor at the exact location each time, and all subsequent material samples must be the same shape and size as the sample used to calibrate the meter to the new smaller-than-minimum size.