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:
Oct. 04, 2016

Filed:

Sep. 27, 2012
Applicants:

Bruce F. White, Boston, MA (US);

Fred Ruland, Wayland, MA (US);

Forest J. Carignan, Bedford, MA (US);

Albert Drueding, Belmont, MA (US);

Gary Glass, Newton, MA (US);

Jonathan Taylor, Waltham, MA (US);

Inventors:

Bruce F. White, Boston, MA (US);

Fred Ruland, Wayland, MA (US);

Forest J. Carignan, Bedford, MA (US);

Albert Drueding, Belmont, MA (US);

Gary Glass, Newton, MA (US);

Jonathan Taylor, Waltham, MA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 25/00 (2006.01); A61B 5/00 (2006.01); A61B 5/103 (2006.01); G01G 23/01 (2006.01); G01L 5/16 (2006.01); A61B 5/11 (2006.01);
U.S. Cl.
CPC ...
G01L 25/00 (2013.01); A61B 5/1036 (2013.01); A61B 5/1038 (2013.01); A61B 5/112 (2013.01); A61B 5/4023 (2013.01); A61B 5/6887 (2013.01); A61B 5/7235 (2013.01); G01G 23/01 (2013.01); G01L 5/16 (2013.01); A61B 5/1116 (2013.01); A61B 2560/0223 (2013.01); A61B 2562/0247 (2013.01);
Abstract

A method for calibrating a force platform includes, providing a force platform and applying an n×m grid on a top surface of the force platform via a computing device. Next, applying p known loads on each of the n×m grid points of the top surface along a Z-axis being perpendicular to the X and Y axes and along the X and Y axes. Next, taking multipoint measurements at each grid point and for each applied known load along the X, Y and Z axes and generating six measured output signals, exact position coordinates and applied known load magnitude for each grid point. Next, assembling an array of n×m×p of six equations with six unknown for each grid point and applied known load and then solving the assembled equations and deriving a position and load specific calibration matrix for each grid point.


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