Patent · US Active

Micro viscometer

US8544316B2 · kind B2 · utility

2Cited by

9References

12Claims

0Family size

Assignee

KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY · KR

Inventors

Sungjoon Choi · Daegu, KR
Daeyoung Shin · Daejeon, KR
Kangwon Lee · Hwaseong-si, KR

Key dates

Filing date	Jul 18, 2011
Grant date	Oct 1, 2013
Priority date	—
Expiry date	May 1, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01N11/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a micro viscometer comprising a first chamber and a second chamber positioned with an interval; a micro channel that connects the first chamber and the second chamber; and a first thin film and a second thin film arranged on top of the first chamber and the second chamber, respectively, wherein a height of the first chamber and second chamber are substantially identical to a half wavelength corresponding a first resonant frequency of the first thin film and the second thin film, respectively, and a width of the first chamber and the second chamber are narrower than the height of the first chamber and the second chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.