DEVICE FOR MEASURING LIQUID PROPERTY

摘要

A liquid measuring system for producing one or more property values of a liquid. The system can include: a thin film device and one or more measuring devices for measuring said one or more property values. The system includes a thin film device for producing a thin film of the liquid on a spinning disk. The system is particularly useful for measuring color and appearance properties of the liquid. The system can be useful for producing coating compositions.

主权项

1. A thin film device for producing a thin film of a liquid, said thin film device comprising:
a disk comprising a planar first surface and a second disk surface on the two opposite sides of said disk, wherein said disk is coupled to a rotation shaft that is aligned with a rotational axis of said disk perpendicular to the planar first surface allowing rotation of the disk along said rotational axis, and wherein at least a circular portion of said planar first surface is rotationally symmetric to said rotational axis; a device frame that positions said rotation shaft and said disk; a thickness control device comprising a thin film setting edge coupled to a liquid return channel and at least one frame connector coupling said thin film setting edge and said liquid return channel to said device frame, wherein said frame connector is movable in respect to said device frame; and a motion device coupled to said disk for providing rotation to the disk, and a motion control device for controlling rotation speed, rotation direction, or a combination thereof, of said motion device; wherein said thickness control device is positioned at said planar first surface side of said disk, and said thin film setting edge is substantially parallel to said planar first surface; and wherein the distance between said thin film setting edge and said planar first surface is in a range of from about 0.05 mm to about 5 mm and adjustable via said frame connector.