1. A system for determining glucose in a biological sample, comprising:! at least one light source configured to illuminate the target area of the sample； ! at least one light filter arranged so as to receive light transmitted through the target region of the sample from at least one light source； ! at least one light sensor arranged to receive light from at least one light source and filtered by at least one light filter, and generate an output signal having a time-dependent current, which is an indicator of a certain power light and! a processor that receives an output signal from at least one light sensor and, based on the received output signal, calculates the attenuation inherent in the blood in the sample present in the target region with a signal-to-noise ratio of at least 20: 1 and, based on the calculated attenuation, determines the level of blood glucose associated with the sample present in the target area. ! 2. The system for determining glucose in a biological sample according to claim 1, wherein the time-dependent output current is a function of the base current, the noise current, and the cyclic current depending on the time corresponding to the heart beat. ! 3. The system for determining glucose in a biological sample according to claim 2, in which the calculated attenuation is based, at least in part, on the standard deviation of the logarithm of the output current, depending on the time generated by the light power from the same target region of the biological sample. ! 4. The system for determining glucose in a biological sample according to claim 2, in which1. Система для определения глюкозы в биологической пробе, содержащая: ! по меньшей мере, один источник света, выполненный с возможностью освещения целевой области пробы； ! по меньшей мере, один световой фильтр, расположенный так, чтобы принимать свет, прошедший через целевую область пробы, по меньшей мере, от одного источника света； ! по меньшей мере, один датчик света, расположенный так, ч
