In-process gas analysis from Siemens - [ Ссылка ] - With our reference cells for SITRANS SL and the in-situ diode laser spectrometer LDS 6, we have found a solution that enables us to keep the measuring accuracy of the system stable over long periods of time. Diode laser spectrometers measure gas concentration in-process without extracting gas samples. The method is based on molecule-specific absorption at a specific wavelength, so it is vital to analyze the right absorption lines.

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