Scientists at the Federal Institute of Technology (ETH) in Zurich have developed the "Minimum, Cheapest" high-sensitivity portable artificial electronic nose (E-nose) sensor, which uses array sensors to detect a variety of substances, which can prove human The specific "chemical footprint" that exists is highly reliable and repeats chemical composition testing. Designed for post-disaster search and rescue of earthquakes and avalanches. The array sensor is based on the team's previous research and development of sensors for by-product gases specific to human metabolism such as acetone, ammonia, and isoprene. Independent studies have shown that these chemicals can accumulate and be measured quickly when humans are trapped. The new sensor, combined with the already commercially available carbon dioxide and moisture sensors, quickly indicates the position of the human body. These sensors can be loaded into portable handheld devices or embedded in robots/und drones for quick search and rescue in hard-to-reach locations. The main author of the research paper, Andreas Güntner, said, "How to combine sensors for the detection of multiple chemical components is important because the individual components may come from other non-human subjects. For example, carbon dioxide may come from trapped humans or from fire sources. ." The team analyzed the combination of chemical components specific to humans through a variety of experiments. Although the new sensor has only the size of the fingernail, its sensitivity and reliability are in no way inferior to the relatively expensive large spectrometer equipment. Energy Storage Battery,Battery Energy,Battery Energy Storage System,Storage Battery Power X (Qingdao) Energy Technology Co., Ltd. , https://www.solarpowerxx.com