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:
May. 15, 2018
Filed:
Apr. 11, 2017
Applicant:
Sciaps, Inc., Woburn, MA (US);
Inventors:
David R. Day, Boxford, MA (US);
Donald W. Sackett, Bedford, MA (US);
Assignee:
SciAps, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/30 (2006.01); G01J 3/02 (2006.01); G01N 21/71 (2006.01); G01J 3/443 (2006.01); G01J 3/10 (2006.01);
U.S. Cl.
CPC ...
G01J 3/027 (2013.01); G01J 3/10 (2013.01); G01J 3/443 (2013.01); G01N 21/718 (2013.01); G01N 2201/069 (2013.01); G01N 2201/06113 (2013.01);
Abstract
A LIBS analyzer and method includes a laser configured to produce a plasma on a sample at a focal point on the sample and a spectrometer responsive to radiation emitted from the plasma and configured to produce an output spectrum. A detector is positioned to detect low intensity pre-firing radiation produced by the laser and reflected off the sample from the focal point. The intensity of the low intensity pre-firing radiation is compared to a predetermined minimum and the laser pump sequence is halted if the intensity of the low intensity pre-firing radiation is less than the predetermined minimum.