dicast00Distributed Intrinsic Chemical Agent Sensing and Transmission (DICAST®) technology has established a new paradigm in the detection of toxic chemicals and chemical warfare agents. These fiber optic chemical sensors extend the reach of sensitive chemical detection over long spans of optical fiber, in contrast to existing chemical sensors, which are limited to point sensing. Typically, selected facility perimeters and buildings are covered with many networked point sensors, but at high cost and with great complexity. A distributed chemical sensor – one whose transduction element is many meters long – can bridge the gap for perimeter protection in both open area and confined space chemical detection. With its proprietary fiber designs and coatings, the DICAST® optical fiber itself is the sensing element. The fiber is implanted into a rugged cable, forming a field-installable chemical sensor with continuous sensitive detection capability over its entire length: The cable IS the sensor!

The DICAST® sensing technology is an outgrowth of research into distributed fiber optic sensors. Since IOS was founded in 1998, we have focused on developing, customizing, and deploying fiber optic sensor systems for multiple applications under government and commercial funding. The DICAST® program continues to offer unique distributed and wide area coverage for high level security applications. DICAST® sensors have been developed for multiple chemical agents, including chemical warfare agents, and beta sites have been deployed at beta sites in Pennsylvania and California.

DICAST® sensing has many applications where toxic gases and liquids/aerosols need to be detected. Major applications include protection of buildings and large public venues (shopping and convention centers, sports arenas, amphitheaters), mobile and transportation assets (aircraft, ships, rail systems), perimeter protection against CBW agents, large area verification of decontamination, pipeline leak detection, chemical concentration profiling, and air monitoring for mine safety.

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