| 摘要 |
A device determines and subsequently corrects for the dispersive influence on a measurement made according to the principles of phase or pulse modulation along a visible range. The device has means (1, 2, 3, 4) for emission of electro-magnetic radiation with two carrier wavelengths in the border regions of the visible spectrum. After passing through a volume of atmosphere (5) to be probed, and reflection, the radiation is received and the dispersive influence, for instance on distance measurements, is calculated and corrected.
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