Detection of biotic contamination on surfaces in connection with e.g. food, semiconductors or medicine, by measuring indicative fluorescence in a specific waveband

摘要

A method for the detection of biotic contamination on surfaces, is new. The surface (1) is irradiated with light (5) with a small wavelength in, or below the visible spectrum. Fluorescence light (6) emitted from the surface is measured. An Independent claim is also included for corresponding equipment, comprising a source (3) emitting light (5) and a measurement cell (4) for detecting light (6) of greater wavelength than that of the source. An evaluation unit produces a signal representative of the measured light.