Microwave based monitoring system and method

摘要

A device for monitoring fluctuations in an opaque body, the device including: (a) at least one low power microwave emitter for locating adjacent the opaque body; (b) a microwave detector for detecting fluctuations in the scattering characteristics from the opaque body; (c) a signal processing means for analysing fluctuations from the body so as to thereby derive characteristics about the body.