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:
Mar. 16, 2010
Filed:
Feb. 17, 2006
Harald Merkel, Lindome, SE;
Harald Merkel, Lindome, SE;
Food Radar System in Sweden AB, Gothenburg, SE;
Abstract
A system for detecting a change in material composition in a product including a microwave transmitter emitting a microwave signal at a predetermined microwave frequency composition, and an ultrasonic transmitter emitting an ultrasound signal at a predetermined ultrasound frequency composition into at least a part of the product to create a density displacement within the product. The system further includes a receiver to receive a microwave signal and/or an ultrasonic signal passed through at least apart of the product, device to measure the attenuation and/or runtime between each emitted signal and each received signal, respectively, under the influence of the created density displacement, and a comparator to compare the measured attenuation and/or runtime with a previously determined attenuation and/or runtime to determine a change in material composition to detect a possible change in material composition in a product.