Planar laser induced fluorescence is PLIF technology category of hydraulics research pollutants turbulent dispersion mechanism of tension in the wrist.Adopt Powell prism and Fresnel lens combination expand blue laser beam and natural light intensity than the average of parallel plate light scattering, through the process of high-speed cameras to collect high resolution fluorescent image, thus opened up a large-scale, high frame frequency PLIF concentration field measurement system, to deal with the practice of planar laser induced fluorescence PLIF technique measurement area is small, the sampling frequency is low, the scattered light is not an average grades.Put forward the suitable for rectangle parallel optical characteristic parameter calibration method and concentration field recovery algorithm, and the beginning for steady flow conditions of vertical jet concentration field for discussion.Results show that nozzle adjacent (z, z) o/lm1 scale within the area near momentum influence, jet axis maximum height (z) Max - zo/lm = 2.3.Compare notes with existing research results, this system measurement of jet concentration field as can be, to verify the reliability of the system.According to reliable sources lens expand blue laser technology has been vigorously developed in our company.Our company is mainly operating product lines shadow device, photon doppler velocimeter, planar laser induced fluorescence PLIF technology application, etc.Our telephone number: 0816-6204826
