公开(公告)号：US09816909B2

公开(公告)日：2017-11-14

申请号：US14604965

申请日：2015-01-26

申请人： KRUESS GMBH, Wissenschaftliche Laborgeraete

发明人： Bernd Friedrich ,  Florian Weser ,  Carsten Scheithauer

IPC分类号： G01N13/02

CPC分类号： G01N13/02 ,  G01N2013/0208

摘要： A contact angle measurement apparatus includes a liquid reservoir arrangement, a drop dosing device in fluid communication with the liquid reservoir arrangement and adapted for applying a liquid drop onto a sample surface, an illuminating device for illuminating each drop applied by the drop dosing device and disposed on the surface from a first side, and an image recording device for recording an image of each applied drop disposed on the surface. A liquid pressurizing system is adapted to pressurize liquid from the liquid reservoir arrangement, and a controller connected to the valve of each drop dosing device and to the liquid pressurizing system, which controls the operation of the liquid pressurizing system and, for each drop dosing device, opening and closing of the respective valve to apply a drop of the respective liquid from the respective liquid line to the surface in a jet of pressurized liquid.