Measuring device and method for time-resolved measurement of a measurement signal

摘要

A measuring device (1) for the time-resolved measurement of a measurement signal (3) and for the temporal separation of at least a first portion (4) of the measurement signal (3) is described and shown, with a light source (5) for emitting a pulse-shaped excitation signal (6) at least one detector (9) for receiving the measurement signal (3), the detector (9) generating a detector signal (11) from the measurement signal (3), with at least one first shaping unit (12a) for generating a first comparison signal (13) , and with at least one evaluation unit (14). The measuring device is characterized in that the first comparison signal (13) correlates with the excitation signal (6), that at least one first logic function (15a) is present, the first logic function (15a) during operation at least the first comparison signal (13) and a Signal (11, 18) dependent on the detector signal (11) is linked to one another in such a way that the output of the logic function (15a) provides a measure of the intensity of the first portion (4) of the measurement signal (3) or of the detector signal (11), wherein the intensity of a portion of the measurement signal is given by the number of photons that hit the detector during the period of the portion of the measurement signal to be separated, and that the output of the first logic function (15a) is connected to the at least one evaluation unit (14)