Sniffing out danger. (News).(Sandia National Laboratories)(Brief Article)

Machine Design,  April, 2003  

Tags: Sandia National Laboratories, strip

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Researchers at Sandia National Laboratories developed a device that rides on small aerial drones to detect potential nerve gas and blister-agent attacks on cities and military bases. The patented device, called SnifferSTAR, is a series of tiny sensors on top of a microprocessor board smaller than a credit card.

The forward motion of the aerial drone forces air through it. Material in the air is absorbed and concentrated. It is then desorbed and temporarily sticks to thick strips of coating material. The coating strips sit on a quartz surface that vibrates at preset frequencies when ...

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