{"product_id":"2940013636354","title":"Optically Powered Remote Gas Monitor","description":"Many mines rely on toxic gas sensors to help maintain a safe and healthy work environment. This report describes a prototype monitoring system developed by the U.S. Bureau of Mines (USBM) that uses light to power and communicate with several remote toxic gas sensors. The design is based on state-of-the-art optical-to-electrical power converters, solid-state diode lasers, and fiber optics. This design overcomes several problems associated with conventional wire-based systems by providing complete electrical isolation between the remote sensors and the central monitor. The prototype performed well during a 2-week field trial in the USBM Pittsburgh Research Center Safety Research Coal Mine.","brand":"1001 Property Solutions LLC","offers":[{"title":"Default Title","offer_id":47156328300784,"sku":"2940013636354","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013636354_p0.jpg?v=1763583304","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013636354","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}