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US 11,754,496 B2Granted
FTIR spectrometer with cut-off filter for hydrogen sulfide detection
AssigneeMls Acq, Inc.
InventorsMartin L. Spartz, Anthony S. Bonanno, Kelly Renee McPartland
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Abstract
A gas analysis system with an FTIR spectrometer preferably utilizes a long path gas cell, a narrow band detector, and an optical filter that narrows the detection region to measure hydrogen sulfide.
Claims20
A Fourier transform infrared spectrometry system for measuring hydrogen sulfide, comprising:
- a source for generating light;
- an interferometer for receiving the light;
- a sample cell containing a gas sample;
- a detector for detecting the light after passing through the sample gas;
- and
- a bandpass filter for filtering light prior to being detected by the detector, the light transmitted by the bandpass filter detected by the detector including 3,700 cm−1 and/or 2,700 cm−1.
3 more elements
A spectrometry method, comprising:
- analyzing a gas sample with a Fourier transform infrared spectrometer;
- detecting the light after passing through the sample gas with a detector;
- and
- filtering light prior to being detected with the detected light including 3,700 cm−1 and/or 2,700 cm−1 to measure hydrogen sulfide.
1 more element
Dependencies are inferred from the claim text.