西安高校研发“透明电磁盾牌” 为智能采矿筑起“防护墙”

Group 1 - The core innovation is the development of a transparent water-based metamaterial absorber, referred to as the "transparent electromagnetic shield," which addresses the challenge of balancing protection and monitoring in complex electromagnetic environments at depths of one kilometer in coal mines [1][2]. - Traditional metal shielding materials are heavy, opaque, and prone to corrosion, failing to meet the demands of complex underground scenarios where electromagnetic interference can distort readings from gas detectors and disrupt communication [2][4]. - The absorber features a composite structure of "ITO film + water-based resin," consisting of four functional layers, with a total thickness of only 13 millimeters, allowing for both protection and transparency [2][3]. Group 2 - Experimental results showed that without the absorber, measurement errors from a simulated multimeter near the interference source reached 80%, while with the absorber, errors were reduced to within 2%, meeting industrial precision requirements [3][4]. - The absorber demonstrated the ability to completely block Wi-Fi signals and significantly attenuate mobile communication signals, confirming its strong electromagnetic shielding capabilities [4]. - The product's corrosion resistance and adaptability to high-humidity, dusty environments make it suitable for underground applications, with potential for mass production through 3D printing [4].