The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2010
Filed:
Apr. 30, 2008
Dirk Appel, Salem, MA (US);
Gaston E. Marzoratti, Franklin, MA (US);
Shrikrishna H. Nabar, Shrewsbury, MA (US);
Robert F. Mouradian, Canton, MA (US);
Dirk Appel, Salem, MA (US);
Gaston E. Marzoratti, Franklin, MA (US);
Shrikrishna H. Nabar, Shrewsbury, MA (US);
Robert F. Mouradian, Canton, MA (US);
Thermo Fisher Scientific Inc., Waltham, MA (US);
Abstract
A gas analyzer system includes an optical source, an optical filter assembly, a controller, and an analyzer. The optical source generates an optical signal. The optical filter assembly includes different optical filters in which to filter the optical signal. During operation, the controller selects sequential application of each of the different optical filters in a path of the optical signal to modulate the optical signal using different frequency bands of optical energy. The modulated optical signal passes through an unknown sample. Based on absorption of the optical signal by the sample gas at different frequencies, the optical analyzer detects which types of multiple different gases are present in the sample.