Optical Extinction Analysis

Articles & Whitepapers

Nikira Labs OEA-532 Deployment at Christman Airfield

The Nikira Labs Optical Extinction Analyzer (OEA-532) was deployed alongside several co-located nephelometers at the Christman Airfield (Fort Collins, CO). The measured data taken over 3-week period was compared directly to an open-path Optec NGN-2a Nephelometer. The OEA-532 was placed outdoors in a covered lean-to with no thermal control or other environmental protection. DATA PRESENTATION ...

Refractive Index Effects on Particle Size Measurement in Liquid Media by Optical Extinction

Abstract The particle size range from below 0.1 μm to above 100 μm encompasses the range of the largest to the smallest of microcontaminants in liquid media. It also spans the range of ...

Thermo Fisher Scientific Offers Opacity Monitor with Automatic Four-Point Linearity and Optical Surface Contamination Checking

FRANKLIN, Mass. (May 9, 2007) – Thermo Fisher Scientific Inc., the world leader in serving science, announces the availability of the Model 445, an opacity and dust concentration monitor with built-in test functions that include automatic four-point ...

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Optical Extinction Analyzers

Nikira Labs’ Open-Path Optical Extinction Analyzers (OEAs) are the next generation instruments for visibility and aerosol studies. They measure the optical extinction and visibility in air with unprecedented accuracy. By combining open-path cavity ringdown measurements with a patented self-referencing scheme, the analyzer is able to measure the optical extinction due to ambient aerosols ...