SPECTROMETRIC APPARATUS FOR ANALYSING FLUID MEDIUM Russian patent published in 2013 - IPC G01J3/02 G01N21/85 

FIELD: physics.

SUBSTANCE: apparatus comprises: an illumination device which can generate a light beam in one wavelength range, a probe (PRB) which is such that the light beam from the illumination device interacts with the analysed fluid medium (20), and a spectrum analysis device which can receive the light beam after interaction thereof with the analysed fluid medium and output luminous intensity measurements for different wavelength ranges. The probe (PRB) has a retroreflector-type reflector (13) which reflects in the direction of the light source, which is placed such that it receives the light beam passing from the illumination device through the analysed fluid medium, and reflect it essentially in the opposite direction, while easily expanding it, to a receiving light-guide (12) which is connected to the reflector and the spectrum analysis device so as to receive the light beam passing through the analysed fluid medium and transmit it to the spectrum analysis device.

EFFECT: enabling compensation for alignment defects between optical elements of the device.

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