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. 29, 2016
Filed:
Oct. 14, 2014
Tsi, Incorporated, St. Paul, MN (US);
Frederick Quant, Shoreview, MN (US);
Kenneth R. Farmer, Lake Elmo, MN (US);
Phillip V. Tan, Shoreview, MN (US);
Christopher B. Stipe, Bothell, WA (US);
Steven G. Buckley, Redmond, WA (US);
Erik Stockinger, Seattle, WA (US);
Daniel Jensen, Vadnais Heights, MN (US);
TSI, Incorporated, St. Paul, MN (US);
Abstract
A novel device, method and systems disclosed managing the thermal challenges of LIBS laser components and a spectrometer in a handheld structure as well the use of simplified light signal collection which includes a bare fiber optic to collect the emitted light in close proximity to (or in contact with) the test material. In one example embodiment of the handheld LIBS device, a burst pulse frequency is 4 kHz is used resulting in a time between pulses of about 250 μs which is a factor of 10 above that of other devices in the prior art. In a related embodiment, an active Q-switched laser module is used along with a compact spectrometer module using a transmission grating to improve LIBS measurement while substantially reducing the size of the handheld analyzer.