| 发明名称 | Method and apparatus for measuring volume flow rate of liquid flowing into a container and/or volume of liquid which has flowed into the container | ||
| 摘要 | A method and apparatus for measuring volume flow rate of a liquid flowing into a container and/or volume of the liquid flowed into the container, with which method, respectively with which apparatus a high measure of automation is achievable in microfluidic systems, especially in the field of analysis. Before liquid flows in, gas is enclosed under a starting pressure in a predetermined starting volume in the container, then liquid is allowed to flow into the container to compress the enclosed gas to a gas volume dependent on the volume of the flowed-in liquid, and to effect a rise of gas pressure of the gas in the container relative to the starting pressure dependent on the volume of liquid which has flowed in and on the volume flow rate of the inflowing liquid, the gas pressure in the container is measured as a function of time, and the volume flowed in up to a given time and/or the volume flow rate of inflowing liquid at the given time are/is determined based on the measured gas pressure. | ||
| 申请公布号 | US8959997(B2) | 申请公布日期 | 2015.02.24 |
| 申请号 | US201113807768 | 申请日期 | 2011.06.20 |
| 申请人 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | 发明人 | Hanko Michael;Honncher Stefanie |
| 分类号 | G01F23/00;G01F1/34;G01F3/38;G01F13/00;G01F22/02 | 主分类号 | G01F23/00 |
| 代理机构 | Bacon & Thomas, PLLC | 代理人 | Bacon & Thomas, PLLC |
| 主权项 | 1. A method for measuring volume flow rate of liquid flowing into a container and/or volume of liquid, which has flowed into the container, which method comprises the steps of: enclosing a gas under a starting pressure in a predetermined starting volume in the container before liquid flows in; then allowing liquid to flow into the container to compress the enclosed gas to a gas volume dependent on the volume of liquid which has flowed into the container and to effect a rise of gas pressure of the gas in the container relative to the starting pressure dependent on the volume of liquid which has flowed in and on the volume flow rate of the inflowing liquid; measuring gas pressure in the container as a function of time; and determining, based on measured gas pressure, the volume of liquid which has flowed in up to a given time and/or the volume flow rate of inflowing liquid at the given time. | ||
| 地址 | Gerlingen DE | ||