Novel Magnetic and Chemical Microsensors for In-Situ, Real-

The Environmental Engineering Group (EEG), Inc. in collaboration with the Oak Ridge National Laboratory (ORNL) proposes to develop a novel magnetic and chemical microsensor for in-situ, real-time detection, and unattended use. We envision a micro-system built around a single type of micro-structure element integrating a monolithic optical system and electronics package. We will integrate into the same micro-structure sensing element, the ability to sense magnetic fields, and chemical composition. The proposed microsensor will incorporate high performance optics, telemetry, and power source and will be capable of operating under field conditions, with sufficient sensitivity to permit high detection rates, and with sufficient selectivity to prevent high false alarm rates. The telemetry system will consist of a relatively small FOV vertically directed laser diode used for burst mode transmission. The transmission of the sensor information could either be transmitted at regular intervals or determined by thesensed parameters. For particularly stealthy operation the telemetry information from the sensed parameters. For particularly stealthy operation the telemetry information from the sensed parameters could also be triggered remotely by either an RF or line-of-sight electro-optical signal. Thus, the 1 to 2 second burst mode signal would be difficult to intercept, jam, and be very power conscience.