Spectrasensors, Inc.

Endress+hauser Optical Analysis, Inc.

Gary Yeh

Alfred O Feitisch

Xiang Liu

Adam S Chaimowitz

William Jenko

Chih-Hsuan Chang

Adam S Chaimowtiz

A method for implementation by a laser spectrometer is provided. The method includes first scanning, by a control unit using a first set of laser spectrometer operating parameters, a first wavelength range by adjusting a wavelength of light of a beam emitted by a laser light source and passing through a sample gas. The first wavelength range encompasses a first spectral feature corresponding to a first constituent. The method also includes at least one second scanning, by the control unit using a second set of laser spectrometer operating parameters, a second wavelength range by adjusting the wavelength of light emitted from the laser light source and passing through the sample gas. The second wavelength range has a second spectral feature corresponding to at least one second constituent. The control unit also determines a first concentration of the first constituent and a second concentration of the at least one second constituent.

Spectrometer with wide-scan tunable diode laser

A frequency registration deviation is quantified for a field spectrum collected during analysis by a spectroscopic analysis system of a sample fluid when the spectroscopic analysis system has deviated from a standard calibration state. The field spectrum is corrected based on the frequency registration deviation using at least one spectral shift technique, and a concentration is calculated for at least one analyte represented by the field spectrum using the corrected field spectrum. Related systems, methods, and articles are described.

Determination and correction of frequency registration deviations for quantitative spectroscopy

Growing community of inventors

Rancho Cucamonga, CA, United States of America

Gary Yeh