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:
Nov. 10, 2009
Filed:
Sep. 19, 2005
Pekka Jakkula, Oulu, FI;
Taavi Hirvonen, Oulu, FI;
Juha Heikkinen, Temmes, FI;
Taisto Soikkeli, Kiiminki, FI;
Olavi Hyry, Kempele, FI;
Jarmo Karhu, Oulu, FI;
Pekka Jakkula, Oulu, FI;
Taavi Hirvonen, Oulu, FI;
Juha Heikkinen, Temmes, FI;
Taisto Soikkeli, Kiiminki, FI;
Olavi Hyry, Kempele, FI;
Jarmo Karhu, Oulu, FI;
Senfit Oy, Oulu, FI;
Abstract
An object to be measured is measured using microwave radiation. Oscillation energy is generated by means of a feedback coupled active unit. The solution involves generating resonance into at least one oscillator, each oscillator comprising at least one open resonator, each resonator being coupled to at least one active unit, by using the object to be measured as a functional part of the resonator, the object to be measured causing a resonance frequency dependent on the location of a surface of the object to be measured to be generated in each oscillator. A measurement part determines at least one characteristic of the object to be measured on the basis of the resonance frequency of each oscillator.