LEAK SURVEY SERVICE

摘要

THE AIRBORNE Natural Gas Emission LIDAR (ANGEL) Service,developed by ITT Corp.'sSpace Systems Division,uses a fixed-wing Cessna aircraft flying over pipelines to detect,quantify,image and precisely pinpoint emissions of natural gas.With greater than 99 percent guaranteed pipeline centerline coverage,the service thoroughly surveys above-or below-ground transmission lines,gathering fields and stations 100 times faster and with 30 times more right-of-way survey coverage than conventional,ground-based methods,says ITT Corp.