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:
Jan. 07, 2014
Filed:
Oct. 20, 2008
Anatol Krozer, Goteborg, SE;
Christer Johansson, Goteborg, SE;
Jakob Blomgren, Kungalv, SE;
Karolina Petersson, Stockholm, SE;
Dag Ilver, Kallered, SE;
Andrea Prieto Astalan, Onsala, SE;
Christian Jonasson, G{hacek over (o)}teborg, SE;
Anatol Krozer, Goteborg, SE;
Christer Johansson, Goteborg, SE;
Jakob Blomgren, Kungalv, SE;
Karolina Petersson, Stockholm, SE;
Dag Ilver, Kallered, SE;
Andrea Prieto Astalan, Onsala, SE;
Christian Jonasson, G{hacek over (o)}teborg, SE;
Acreo Swedish ICT AB, Kist, SE;
Abstract
A device for detecting a magnetic field response or changes in a magnetic response of at least one magnetic particle in a carrier fluid, the detection comprising measuring the magnetic particles characteristic rotation period, and the measurement involving measurement of a Brownian relaxation in the carrier fluid under influence of an external pulsed magnetic field. The device includes means for generating the pulsed magnetic field, at least two substantially identical detection coils connected in gradiometer coupling to detection electronics for measuring the differential induced voltage which is dependent on the frequency dependent susceptibility or the magnetization change.