Where would you put a printable sensor that can detect volatile organic compounds (VOCs)? Engineers at Peratech are working on a nose sensor embedded in clothing. Based on the company’s Quantum Tunneling Composite (QTC) material that change resistance when a force is applied, the polymer content of the sensor swells when exposed to VOCs. One form of the sensor uses granular QTC material to provide a high surface area for absorption. This allows the sensor to detect VOC levels in the region of 10-100 ppm. The sensor recovers quickly when the VOCs disperse.
Potential applications include military as well as any clothing worn by any person who might risk exposure to VOCs.
For more information about Peratech QTC technology and electronic nose sensing, click here.