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4C Conference 2018: Detection Limits for Optical Gas Imaging

Updated: Jul 20, 2018

Presented by Jon Morris at the 2018 4C Conference.

Optical Gas Imaging (OGI) is an effective tool for equipment leak detection. Despite the fact that OGI has been used for leak detection for over a decade, its detection limit is an elusive performance metric. There is a persistent tendency to compare the OGI detection limit to the leak definition in the Leak Detection And Repair (LDAR) programs (e.g., 10,000 ppm, 2,000 ppm, 500 ppm, etc.). A substantial body of research has been performed that has shed some light on the OGI detection limits, the factors that dictate the detection limits, and the relationship between the OGI detection limits and the LDAR leak definition. These findings should help better define the capabilities and limitations of OGI as a leak detection method, and advance the OGI technology to the next level of adoption as a primary leak detection method.


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