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Measuring Principles of the LI‑7700 Trace Gas Analyzer
Description:
Wavelength Modulation Spectroscopy (WMS) is an established spectroscopic technique that LI‑COR has implemented in the new LI‑7700 Open Path Methane Analyzer. Recent advances in laser technology and engineering have enabled the use of WMS for this instrument. There are several distinct advantages that WMS provides for trace gas measurements, including the ability to operate at ambient pressure with a short optical path and still produce a strong signal with low noise. This webinar will discuss the WMS technique and how it is implemented in the LI‑7700. We will also discuss the advantages that WMS brings to field measurements of methane concentrations and fluxes.
Speaker(s):
Brad Riensche
Principal Design Engineer
Bill Miller
Senior Product Manager
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