This laboratory grade multi-gas analyzer accurately measures gas concentrations from trace levels to full concentrations using an optical feedback laser absorption spectrometer. The system operates at low pressure, significantly reducing adsorption, contains no moving parts, and does not require liquid N2 cooling, providing a robust measurement system with no drift and little maintenance.
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The SEMTECH® LASAR combines laser absorption spectrometry with very low pressure sampling for the measurement of emission gases over wide dynamic ranges. The use of a hyper-reflective gas cell in conjunction with laser light sources (TDL or QCL) enables kilometric pathlength, delivering enhanced sensitivity. Optical feedback enhances the purity of the laser beam injection in the gas cell by as much as 100x, enabling optical resolutions as low -1 as 0.005 cm. When combined with very low pressure sampling, absorption bands are narrowed resulting in zero-interference measurements. Very low pressure sampling and very low internal dead volume enables faster system response times.
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