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:
Dec. 08, 2015
Filed:
Sep. 07, 2011
Applicant:
Mikhail Mikhaylovich Ovsyanko, Eindhoven, NL;
Inventor:
Mikhail Mikhaylovich Ovsyanko, Eindhoven, NL;
Assignee:
Koninklijke Philips N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/74 (2006.01); H01F 7/06 (2006.01); G01N 33/543 (2006.01); G01R 33/12 (2006.01); G01N 21/552 (2014.01); G01N 35/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/745 (2013.01); G01N 33/54366 (2013.01); G01R 33/1269 (2013.01); H01F 7/064 (2013.01); G01N 21/552 (2013.01); G01N 35/0098 (2013.01);
Abstract
Magnetic particles () are attracted to a contact surface () in an associated sensor device () by generating a pulsed magnetic field (B) according to an actuation protocol. The protocol includes a 'local attraction phase' during which the duty cycle of the pulsations is smaller than about 10%, preferably ranging between 2% and 5%. These small duty cycles are advantageous in bringing magnetic particles () into actual contact with the contact surface ().