The chemical sensing prototype plugged into an iPhone
30-pin dock connector with the display-side up.
Nasa scientist has developed a “proof of concept of new technology that would bring compact, low-cost, low-power, high-speed nanosensor-based chemical sensing capabilities to cell phones”. Jing Li, the scientist at NASA, developed the device which can be plugged into an iPhone to collect and process sensor data.
The new device is able to detect and identify low concentrations of airborne ammonia, chlorine gas and methane. The device senses chemicals in the air using a “sample jet” and a multiple-channel silicon-based sensing chip, which consists of 16 nanosensors, and sends detection data to another phone or a computer via telephone communication network or Wi-Fi.
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