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:
Sep. 13, 2016
Filed:
Feb. 17, 2011
Nami Kurauchi, Kyoto, JP;
Miki Nakamura, Kyoto, JP;
Masanori Yasuda, Kyoto, JP;
Kyoto Electronics Manufacturing Co., Ltd., Kyoto, JP;
Abstract
In a method of measuring a viscosity of a sample based on a rotation frequency Ωof a conductive rotator rotating by applying a rotating magnetic field from outside to the rotator set in a container containing the sample and a rotation frequency Ωof the magnetic field, a constant khaving temperature dependency of an apparatus and a constant knot having the temperature dependency at each temperature are found by using a equation, η=k(Ω−Ω)−k, where a viscosity ηat specific temperature is known, and then a value of viscosity measured at the specific temperature is corrected by means of the constants kand k, the rotation frequency Ωof the rotator, and the rotation frequency Ωof the magnetic field. The constant kmay employ the temperature dependency of electric conductivity of metal used to the rotator.