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An Interface Chip For Saw Based Sensor In An Ad-Hoc Network, Yagneshwara Ramakrishna Vadapalli
An Interface Chip For Saw Based Sensor In An Ad-Hoc Network, Yagneshwara Ramakrishna Vadapalli
Theses
The design of a smart integrated chemical sensor system that will enhance sensor performance and compatibility to ad hoc network architecture remains a challenge. This work involves the design of an interface chip for a Surface Acoustic Wave (SAW) based chemical sensor where the sensor reflects the RF input and introduces a time delay proportional to the concentration of the vapors absorbed by it. The interface chip detects the frequency shift as a function of the chemical species absorbed by the sensor and alerts the ad hoc network controller when a monitored parameter exceeded some threshold, based on local processing …