In the video “Immaterials: Light Painting Wi-Fi,” a team of Norwegian researchers combined long-exposure photography with Wi-Fi signal detection to plot what happens to wireless signals when they intersect with common objects. To achieve the layering of electromagnetic terrain on top of everyday scenery, the three filmmakers constructed a 4-meter-tall Wi-Fi measuring rod. A Wi-Fi antenna was used to measure wireless reception at any given point, which was then displayed on the measuring rod using 80 different lights to indicate signal strength. Using a long-exposure camera, the researchers measured and displayed wireless signals while slowly moving the bar across a piece of terrain. Read more from PC Mag. See the video.
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Established in 1970, Interference Technology helps EMI/EMC engineers find solutions to their various testing, design, application and regulatory issues by publishing articles, news and other practical content. We help suppliers in these areas to find the right customers for their components, materials, test equipment and services through a wide range of marketing services, including lead generation, branding, market research and events. The publication is available in various printed and electronic media formats, with readers in over 60 countries. We also publish issues in local languages in China, Japan and Europe.