CONTAMINANT DETECTION SYSTEM

摘要

A contaminant detection system (100, 410, 800, 830) includes a transmitter (102, 122, 422, 442, 472, 516, 716, 736, 737, 810, 838, 846) for transmitting a guided wave (128, 420) through the skin (114, 422, 440, 470, 520, 532, 710, 712, 730, 732, 754, 816, 832, 846) at particular resonances, wherein each resonance point utilized will have propagation characteristics sensitive to a condition of interest. A contaminant (770, 834) may then be classified by transmitting several resonances and then carrying out appropriate feature extraction and pattern recognition techniques utilizing a host processor (134).