Method for the determination of the road surface condition and device for carrying out the method

摘要: The invention relates to methods for determining the condition of a road surface, in which decomposes backscattered light from one surface into spectral components and wavelength-dependent course backscatter intensity thus obtained is evaluated. For this, spectrum dry assumed be mathematical function with free parameters this an exponential absorption term describing transmission water layer predetermined thickness, multiplied obtain as strikes receiver. Using actual measured values ​​of terms best approximation can calculated then, results in, inter alia, thickness layer. device represents spectrometer, uses absorbent member instead dispersive element applied directly onto CCD sensor line.