Detection and Sensing


Detection and Sensing

Crack Detection and Material Characterization using Electrically-Small Open Resonators

Open resonators such as Split Ring Resonators or their derivatives can produce strong evanescent fields. Such fields are highly sensitive to the composition of electric and magnetic energy in the close proximity of the resonators. This sensitivity provides the resonators with the ability to detect minute changes either in material composition or in surface features.  This property makes these types of resonators highly suitable to be employed as sensors for a variety of applications.   Our research demonstrated the ability to detect minute material composition changes and sub-millimeter cracks in metallic surface.  This was accomplished at a fraction of the cost that wave-guide based methods would require.


Detection of Biological Anomalies using Intelligent Microwave Modalities

Microwaves are perfectly suited for investigating the composition of the human body and tissues. This is primarily because they are benign in the sense that the energy they carry is relatively low and so far had not been proven to present any health hazards to human tissues (in the form of ionization or excessive power deposition). We are investigating different techniques for two distinct objectives. The first is detection of anomalies within the human body, and the second for imaging human organs and tissues. Our research encompasses probes design and intelligent software based on neural networks and artificial intelligence to discern specific tissue features.