Back to results
US 12,085,448 B2Granted
FTIR spectrometer with optical filter for low level gas detection such as formaldehyde and ethylene oxide
AssigneeMls Acq, Inc.
InventorMartin L. Spartz
Life of this patent
Estimating the term…
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. The interferograms are further prevent baseline drift and analyze the resultant spectra.
Claims20
A Fourier transform infrared spectrometry system, comprising:
- a source for generating light;
- an interferometer for receiving the light;
- a sample cell containing a gas sample;
- a narrowband detector for detecting the light after passing through the gas sample-gas;
- and
- an optical filter for filtering light prior to being detected by the narrowband detector, with the interferometer providing resolution within a frequency range of the optical filter.
3 more elements
A spectrometry method, comprising:
- analyzing a gas sample with a Fourier transform infrared spectrometer using an interferometer for receiving light generated by a source;
- detecting the light after passing through the gas sample;
- and
- filtering light prior to being detected, with the interferometer providing resolution within a range of the filtered light.
1 more element
Dependencies are inferred from the claim text.