Overview Since its commercial debut in 2005, LASEN has flown Airborne LIDAR Pipeline Inspection System (ALPIS) in excess of over 140,000 miles on natural gas pipelines, compressor stations, refineries, storage facilities, etc., and has detected over 16,000 leaks, generating savings to LASEN customers in the tens of millions of dollars. Challenge The ALPIS gas leak detection system is com- prised of an airborne sensor unit and operator’s console. The sensor is mounted to the bottom of a helicopter. The main sensor enclosure houses the laser, computer, receiver optics and detectors. In addition, the system is equipped with a high resolution imaging camera and a GPS receiver. The combination of laser, imag- ing and GPS data makes it possible to precisely locate the leak. An ope

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