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41. 发明申请

US20060144871A1 Acoustic liquid dispensing apparatus 有权
标题翻译：声液分配装置
公开(公告)号：US20060144871A1
公开(公告)日：2006-07-06
申请号：US11296131
申请日：2005-12-07
申请人： Michael Van Tuyl , James Chiao , Michael Herrmann , Andrew Rose
发明人： Michael Van Tuyl , James Chiao , Michael Herrmann , Andrew Rose
IPC分类号： B65D47/18 , G01N29/024 , G01N29/028 , G01N29/032
CPC分类号： G01N29/343 , G01N9/24 , G01N11/10 , G01N29/024 , G01N29/028 , G01N29/032 , G01N29/221 , G01N29/222 , G01N2291/02809 , G01N2291/02818 , G01N2291/02836 , G01N2291/02881 , G01N2291/044
摘要： A liquid dispensing apparatus for dispensing droplets of a liquid, and methods for measuring various fluid parameters of the liquid are described. The liquid dispensing apparatus comprises a container having a chamber for holding a liquid. An orifice is positioned at an end of the chamber for dispensing droplets of the liquid, the orifice being configured to retain the liquid in the container if the container is positioned with the orifice facing in a downward direction. An acoustic transducer means is at least partially positioned in the chamber for periodically propagating a focused acoustic beam toward the orifice and through at least some of the liquid while the liquid is contained in the chamber, with the focused acoustic beam being capable of causing a droplet of the liquid to be ejected from the orifice when a free surface of the liquid is within the depth of field of the acoustic transducer means. Fluid parameters that can be measured include the sound velocity in the liquid, liquid level and liquid concentration, liquid acoustic impedance, liquid density and ultrasonic viscosity.
摘要翻译：描述了用于分配液体的液滴的液体分配装置以及用于测量液体的各种流体参数的方法。液体分配装置包括具有用于保持液体的室的容器。孔口位于腔室的端部，用于分配液体的液滴，如果容器定位成孔口朝向下方的方向，孔口被配置成将液体保持在容器中。声学换能器装置至少部分地定位在腔室中，用于在聚焦的声束能够引起液滴时，将聚焦的声束周期性地传播到孔口并通过至少一些液体，同时液体被容纳在腔室中当液体的自由表面在声换能器装置的深度范围内时，从喷嘴喷射的液体。可以测量的流体参数包括液体中的声速，液位和液体浓度，液体声阻抗，液体密度和超声波粘度。

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