OPTICAL GAS IMAGING Sean Epps Heath Consultants Incorporated - PowerPoint PPT Presentation

Apr 03, 2024 •165 likes •398 views

OPTICAL GAS IMAGING Sean Epps Heath Consultants Incorporated s.epps@heathus.com TGA 2015 Transmission Roundtable www.heathus.com San Antonio, TX INFRARED ENERGY? Convection Every animate or inanimate body that exists emits energy from

OPTICAL GAS IMAGING Sean Epps Heath Consultants Incorporated s.epps@heathus.com TGA 2015 Transmission Roundtable www.heathus.com San Antonio, TX
INFRARED ENERGY? Convection • Every animate or inanimate body that exists emits energy from its surface at all wavelengths. Radiation • The energy is a form of electromagnetic wavelengths • Travels at speed of light Conduction • Behaves in most cases as a visible light • Can be reflected or concentrated using a lens filter • Energy increases as temperature increases
WHAT IS BLACKBODY RADATION
EXAMPLE OF IR REFLECTION
OGI SEES WHAT WE CAN NOT!!!
“Surf’s Up Dude…Lets Catch Some Waves!”
Why the MWIR Region? 3-5u MWIR
Atmospheric Absorption
Absorbency vs. Transmittance
“I see Background…Not Gas?!” The leaking gas temperature differs from the background temperature The OGI camera spectral band coincides with the emissivity (absorbance) spectra of the leaking gas
KEY Components of an OGI Camera DETECTOR (HgCdTe/InSb NARROW IR semiconductor) BANDPASS FILTER (3.2-3.4 µm) STIRLING CYCLE COMPRESSOR DETECTOR and COOLER ASSEMBLY INFRARED LENS (75 mm lens pictured)
IR Lens Size and Performance
Same scene from 150 meters away 19mm lens 50mm lens 75mm lens 150mm lens
FL/FOV COMPARISON OF LEAK
What does a leak look like?
D E V E L FLIR GF320 2009 Merlin “Hawk” 2003 O P M E N T OPGAL EyeCGas 2010 FLIR GasFindIR 2006
APPLICATION INCIDENT RESPONSE • ENVIRONMENTAL STEWARTSHIP • PIPELINE SAFETY • ASSET INTEGRITY • PRODUCT LOSS PREVENTION •
OPGAL EYE-C-GAS IMAGING CAMERA SAFE: Certified for use in Class 1 Div II Hazardous Locations • RUGGEDIZED and FORGIVING: IP65 rated for dust and water intrusion • SIMPLE for anyone to operate and QUICKLY pinpoint emission sources • To help improve in the SAFETY, PRODUCTIVITY and INTEGRITY of your daily operations
FUTURE DEVELOPMENTS IN OGI
QUESTIONS?

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