HARMONIC RATIO BASED DEFECT CLASSIFIER

摘要

is the disclosure is the detection of at least one of the media defect , and a system and method for classification . The periodic pattern is writing to the media to yield at least one waveform . The size of the waveform to detect the presence or absence of defect is compared to the medium in a medium defect threshold . If the at least one defect detected, the size of each of the at least two harmonics of the waveform is determined in the fault range . Defects are classified by comparing the ratio of the size of the at least two harmonics and classification threshold . ;