DEVICE FOR MEASURING LASER-INDUCED FLUORESCENCE OF PIGMENTS AND/OR ENVIRONMENTAL POLLUTANTS

摘要

The invention relates to a device for measuring the laser-induced fluorescence of pigments and/or environmental pollutants. Said device comprises a pulsed laser light source (10) for emitting optically safe laser light with a wavelength suitable for exciting the fluorescence of the pigments and/or environmental pollutants at a measuring location (12) and a transmission device for transmitting the laser light emitted by the laser light source (excitation radiation) to the measuring location for exciting the fluorescence. The device also comprises a receiving unit (14) for receiving the excited fluorescent radiation, at least two photo diodes (20) for detecting the fluorescent radiation on at least two characteristic wavelengths, or in at least two characteristic wavelength ranges and for converting it into a corresponding electric signal, analogue signal processing units (22) corresponding to the number of detected fluorescent wavelengths and comprises a digital signal processing unit (24) for digitally processing the digitised signals.