ANALYZER OF NATURAL GAS COMPOSITION Russian patent published in 2018 - IPC G01N21/65 G01J3/44 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of measurement technology and relates to a natural gas composition analyzer. Analyzer contains a continuous laser, a turning prism, a lens, focusing laser radiation in the center of a sealed cell, a laser radiation trap, two lenses, a holographic filter that blocks the radiation in the laser wavelength region, a spectral instrument associated with a multichannel photodetector, a control unit and a personal computer. Between the slit of the spectral device and the lens, which directs to it the collected scattered radiation, on the rotor axis of the stepping motor, which is in the same plane with the axis, along which laser radiation propagates inside the cell, an optically transparent plane-parallel plate is installed, the largest faces of which are located parallel to the plane of the entrance slit.

EFFECT: technical result consists in increasing the stability of the analyzer’s metrological characteristics to mechanical vibrations, changes in temperature and air pressure.

1 cl, 3 dwg