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.

Date of Patent:
Dec. 12, 2023

Filed:

Nov. 18, 2021
Applicant:

Lawrence Livermore National Security, Llc, Livermore, CA (US);

Inventors:

Saptarshi Mukherjee, Milpitas, CA (US);

Tammy Chang, San Ramon, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/04 (2006.01); G01R 27/32 (2006.01); G01B 21/12 (2006.01); G01B 15/00 (2006.01); G01N 22/00 (2006.01); B33Y 40/00 (2020.01); G01N 22/04 (2006.01); G01N 22/02 (2006.01); G01F 23/284 (2006.01); G01F 1/74 (2006.01);
U.S. Cl.
CPC ...
G01B 21/12 (2013.01); B33Y 40/00 (2014.12); G01B 15/00 (2013.01); G01N 22/00 (2013.01); G01N 22/02 (2013.01); G01N 22/04 (2013.01); G01F 1/74 (2013.01); G01F 23/284 (2013.01);
Abstract

The present disclosure relates to a system for detecting and analyzing droplets of feedstock material being ejected from an additive manufacturing device. The system makes use of a split ring resonator (SRR) probe including a ring element having a gap, with the gap being positioned adjacent a path of travel of the droplets of feedstock material. An excitation signal source is used for supplying an excitation signal to the SRR probe. An analyzer analyzes signals generated by the SRR probe in response to perturbations in an electric field generated by the SRR probe as the droplets of feedstock material pass the ring element. The signals are indicative of dimensions of the droplets of feedstock material.


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