QLM awarded another new patent for using lidar with just one low power diode laser to quantify remote methane leaks.

QLM has been awarded another new patent, US 12,411,153  for accurately determining the flow rate of remote methane leaks by measuring both gas concentration data and lidar distance data with just a single low-power diode laser.

Lidar measurement of methane with complex expensive lasers was pioneered by scientists 50 years ago and is still commonly applied from airplanes and large installations. But complex and expensive means these systems only monitor sites and facilities for methane emissions very occasionally, sometimes only for a few seconds every few months. The science has shown that that means most leaks get missed. Finding and stopping the majority of methane emissions will require low-cost simple systems that can be deployed continuously and without expensive operators and data interpreters. That is what QLM have developed our patented single diode laser lidar to do, find every leak every day everywhere.