Multicomponent simultaneous measurement device in optics engine cylinder combustion process

The invention discloses a multicomponent simultaneous measurement device in optics engine cylinder combustion process, and the multicomponent simultaneous measurement device is used to study the formation mechanism of carbon smoke in an engine cylinder. 266nm, 283nm and 1064nm three beams of detection laser are generated by cooperation of a Nd: YAG laser and a dye laser with a frequency doubling crystal group and a laser reflector group; energy distribution of the three beams of detection laser is achieved by adjustment of the angle of the frequency doubling crystal group, the three beams of detection laser excite polycyclic aromatic hydrocarbon fluorescence, hydroxyl fluorescent fluorescence and carbon smoke incandescence; a beam splitter mirror group, a filter group, a ICCD (Intensified charge coupled device) camera group and an acquisition computer group are used for acquisition of polycyclic aromatic hydrocarbon fluorescence, hydroxyl fluorescent fluorescence and carbon smoke incandescence signals; and the laser induced fluorescence and laser induced incandescence methods can be used for qualitative measurement of the concentration of polycyclic aromatic hydrocarbons, hydroxy and carbon smoke in an optics engine cylinder. The three components can be simultaneously measured only by use of one Nd: YAG laser and one dye laser, and the measuring device cost and the operation difficulty can be greatly reduced.