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Mini NASA Methane Sensor Makes Successful Flight Test

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Posted March 29, 2016
A JPL mini methane gas sensor is flight tested on a small unmanned aerial system (sUAS) under a project to improve energy pipeline industry safety. The sensor enables methane detection with higher sensitivity than previously available for the industry in hand-carried or sUAS-deployable instruments.Credit: University of California, Merced

A JPL mini methane gas sensor is flight tested on a small unmanned aerial system (sUAS) under a project to improve energy pipeline industry safety. The sensor enables methane detection with higher sensitivity than previously available for the industry in hand-carried or sUAS-deployable instruments.Credit: University of California, Merced

As part of a project to improve safety in the energy pipeline industry, researchers have successfully flight-tested a miniature methane gas sensor developed by NASA’s Jet Propulsion Laboratory, Pasadena, California, on a Vertical Take-off and Landing small unmanned aerial system (sUAS). The sensor, similar to one developed by JPL for use on Mars, enables detection of methane with much higher sensitivity than previously available for the industry in hand-carried or sUAS-deployable instruments.

The tests were conducted in central California at the Merced Vernal Pools and Grassland Reserve, and were funded by Pipeline Research Council International (PRCI). The jointly conducted test of NASA’s Open Path Laser Spectrometer (OPLS) sensor is the latest effort in a methane testing and demonstration program conducted on various platforms since 2014. The ability of the OPLS sensor to detect methane in parts per billion by volume could help the pipeline industry more accurately pinpoint small methane leaks.

Researchers from JPL and the Mechatronics, Embedded Systems and Automation (MESA) Lab at the University of California, Merced, conducted the flight tests in late February. They flew a small unmanned aerial system equipped with the OPLS sensor at various distances from methane-emitting gas sources. Tests were done in a controlled setting to test the accuracy and robustness of the system.

The advanced capabilities provided by sUASs, particularly enhanced vertical access, could extend the use of methane-inspection systems for detecting and locating methane gas sources.

Additional flight testing this year will feature a fixed-wing UAS, which can fly longer and farther. Those capabilities are necessary for monitoring natural-gas transmission pipeline systems, which are often hundreds of miles long and can be located in rural or remote areas.

This latest round of tests furthers the team’s goal to develop sUASs to improve traditional inspection methods for natural-gas pipeline networks, which may enhance safety and improve location accuracy.

“These tests mark the latest chapter in the development of what we believe will eventually be a universal methane monitoring system for detecting fugitive natural-gas emissions and contributing to studies of climate change,” said Lance Christensen, OPLS principal investigator at JPL.

NASA uses the vantage point of space to increase our understanding of our home planet, improve lives, and safeguard our future. NASA develops new ways to observe and study Earth’s interconnected natural systems with long-term data records. The agency freely shares this unique knowledge and works with institutions around the world to gain new insights into how our planet is changing.

Source: JPL

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