Schlieren apparatus imaging principle of the experiment:Test using schlieren instrument belongs to the reflection type parallel lines of light shadow, reflective optical imaging with off-axis light imaging formation of the hui and astigmatism two types differ, adopt "Z" shaped optical path arrangements, and adjust the blade, can cut or dispel the two types of aberration.Schlieren apparatus is based on light through the process of density differences of air flow and the Angle of deflection to show its refractive index, is a kind of measuring light small deflection Angle of the assembly.It will change in the flow field in medium density gradient into account strong three-dimensional photogenic light changes, the flow field of shock wave, can squeeze squeeze density becomes intense regions such as wave can see, can determine the image.Our company's main equipment and technology has the schlieren apparatus, photonic doppler velocimeter, planar laser induced fluorescence PLIF, etc.If there is any need to please contact us: 0816-6204826