METHOD AND DEVICE FOR RAPIDLY ASCERTAINING THE PARAMETERS OF A SAMPLE MEDIUM

摘要

Light of a defined wavelength is directed towards a luminescent layer which comes into contact with the sample medium and the luminescent properties of which depend on the parameter to be determined. The luminescent light is determined via detectors, the signals of which are a measure of the parameter. So that a reliable determination of a parameter becomes possible with an extremely short adjustment time even in the presence of several parameters influencing the luminescent properties, it is provided to determine the intensity of luminescence for a number of different wavelength bands corresponding to the number of parameters, in which arrangement the parameters have a different influence on the properties of luminescence in at least one wavelength band. The signals obtained are supplied to a signal processing device (26) which determines from these the magnitude of the parameter to be measured. ……