Monitoring Fugitive Methane Emissions Utilizing Advanced SUAS Technology Under Development Through ARPA-E Grant

Physical Sciences Inc., in collaboration with Heath Consultants, is adapting the industry-leading laser-based Remote Methane Leak Detector (RMLD®) for mounting on the InstantEye®, PSI’s two-foot-wide quadrotor Unmanned Aerial Vehicle featuring highly advanced autonomy and all-weather operation.

This technology combination, known as the RMLD® Sentry, will implement self-directed flight patterns to continuously monitor, locate, and quantify volumetric leak rates of methane, a potent greenhouse gas, at natural gas production sites.

The RMLD Sentry measures methane by sending an infrared laser light beam downwards from the vehicle and detecting some of the laser light reflected back from the ground. It relies on attenuation of the laser beam by the methane in the laser path at certain wavelengths, as compared to little attenuation at other wavelengths. By flying circular patterns around a methane leak, the RMLD Sentry is able to deduce the leak rate and home-in on the leak location.

RMLD Sentry complements the Remote Emissions Monitor (REM) Stationary Methane Sensor. REMs are stationary continuously-operating long-path methane analyzers based on RMLD. They are deployed at wellpads and other natural gas infrastructure.

Development and evaluation of RMLD Sentry is sponsored by the US Department of Energy’s Advanced Research Project Agency (ARPA-e). The three-year ARPA-e program will test prototype units at selected field sites.

For recent news regarding RMLD Complete Solution (RMLD-CS™), please visit: RMLD-CS™

For recent news regarding the RMLD® Sentry, please visit:

Voice of America video: "Company Develops Drone to Help Reduce Greenhouse Emissions" 3/21/2016

Fastcoexist article "This Drone Automatically Sniffs Out Climate-Warming Gas Leaks" 3/8/2016

Voice of America video: "Washington Hosts Advanced Energy Projects Summit" 3/3/2016

Energy Wire News: "Methane tracking tools get federal research support" 3/3/2016

For news regarding REM, please visit:

Fox 40 News: "Tour of PG&E’s San Joaquin County Underground Gas Storage Facility" 2/5/2016

Stationary Methane Sensor

North American Oil and Gas Pipelines "A New Perspective: Drone Technology Taking Flight Over Pipeline Rights of Way " 7/16/2018

For more information, contact:

Dr. Mickey Frish
Physical Sciences Inc.
20 New England Business Center
Andover, MA 01810

Telephone: (978) 689-0003
Fax: (978) 689-3232