Patent · US Active

Clutter avoidance in wide-band cavity ring-down data acquisition

US11592388B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

Picarro, Inc. · US

Inventors

John A. Hoffnagle · San Jose, US
Chris W. Rella · Sunnyvale, US

Key dates

Filing date	Dec 13, 2019
Grant date	Feb 28, 2023
Priority date	—
Expiry date	Nov 11, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/391
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Improved optical absorption spectroscopy of species having broad spectral features is provided by choosing frequencies to cover the spectral feature(s) of interest, where the frequencies are slightly adjusted as needed to avoid narrow spectral features from interfering chemical species (i.e., clutter). The resulting clutter avoidance provides improved optical spectroscopy of species having broad spectral features.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.