| 摘要 |
The invention relates to a device for determining at least one vertical position of at least one horizontally extending boundary (G1~G3) between a first component (K1) and at least one second component (K2~K4) present in a sample tube (PR) in layers separated from one another. To this end, the device exposes the sample tube in multiplex time to light impulses having a first and a second wavelength, measures intensities of light impulses of the first and second wavelength exiting the sample tube, and analyzes the measured intensities for determining the position of the boundaries. |
