| 发明名称 | Micro viscometers and methods of manufacturing the same | ||
| 摘要 | A viscometer for measuring the viscosity of fluid. The viscometer includes: a first chamber and a second chamber separated from the first chamber; a micro channel connecting the first chamber to the second chamber; a first thin film disposed over the first chamber and a second thin film disposed over the second chamber; and a first piezoelectric film disposed over the first thin film and a second piezoelectric film disposed over the second thin film. At least one of the first and second piezoelectric films has a hexagonal shape if a longest distance between a center and an edge of the piezoelectric film is longer than a threshold range and a circular shape if the distance is shorter than the threshold range. | ||
| 申请公布号 | US9128022(B2) | 申请公布日期 | 2015.09.08 |
| 申请号 | US201213695619 | 申请日期 | 2012.10.11 |
| 申请人 | KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY | 发明人 | Choi Sung Joon;Cha Young Taek;Shin Dae Young;Lee Kang Won |
| 分类号 | G01N11/16;G01N11/10 | 主分类号 | G01N11/16 |
| 代理机构 | Patent Office of Dr. Chung Park | 代理人 | Patent Office of Dr. Chung Park |
| 主权项 | 1. A micro viscometer, comprising: a first chamber and a second chamber separated from the first chamber; a micro channel connecting the first chamber to the second chamber; a first thin film disposed over the first chamber and a second thin film disposed over the second chamber; and a first piezoelectric film disposed over the first thin film and a second piezoelectric film disposed over the second thin film, wherein the first and second piezoelectric films have a hexagonal shape if a longest distance between a center and an edge of at least one piezoelectric film is longer than a threshold range and the first and second piezoelectric films have a circular shape if the distance is shorter than the threshold range, wherein the threshold range is 55 μm-60 μm. | ||
| 地址 | Cheonan KR | ||