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:
Sep. 13, 2022
Filed:
Feb. 06, 2019
Malvern Panalytical Limited, Malvern, GB;
Douglas Hamilton, Malvern, GB;
Jason Corbett, Malvern, GB;
Malvern Panalytical Limited, Malvern, GB;
Abstract
A method of determining particle size distribution from multi-angle dynamic light scattering data, comprising: obtaining a series of measured correlation functions g(θ) at scattering angles θ; and solving an equation comprising wherein: K(θ) is the instrument scattering matrix computed for angle i, x is the particle size distribution, and αis the scaling coefficient for angle i. The method comprises using the steps: a) providing initial estimates for scaling factors αto α, and defining α=1; b) iterating scaling factors αto αusing a non-linear solver; c) solving for x using a linear solver; d) calculate residual; e) repeat steps b) to d) while the residual is greater than a predefined exit tolerance.