SPOILAGE DETECTION USING ELECTROMAGNETIC SIGNAL AND MATHEMATICAL MODELING

摘要

The present disclosure provides a system for inspecting a package (1040) having a substance subject to spoilage. An electromagnetic signal (e.g., a terahertz frequency signal) is directed to the package (1040), and an attenuated signal is received and sampled to generate a set of data points. A peak within the set of data points is detected, and the data points are shifted with respect to time to align the detected peak with a predetermined time. The set of shifted data points are compared to a mathematical model to determine whether the substance in the package (1040) is spoiled.