Photon Correlation Spectroscopy (photon correlation spectroscopy) by dynamic light scattering (dynamic light scattering) when the particle size is smaller than the wavelength of light, the Rayleigh scattering theory, relative angular intensity of scattered light regardless of the particle size distribution of the droplets angle, not by Spatial distribution of scattered light intensity (i.e., the above-described static scattering method) to determine the particle size of water drop angle wholesale, dynamic light scattering has made up for in this, it will scatter a certain frequency shift of the scattered light, scattered light at a certain point in space to form an interference Direct droplets angle attenuation of light intensity at that point of time correlation function of particle size and size have one to one relationship. By detecting the scattered light intensity varies with time drops angle plant sales, and associated operational size particle size can be drawn. Nevertheless, the obtained dynamic light scattering average particle diameter of the particles is difficult to obtain a particle size distribution parameter. Dynamic light scattering method is adapted to detect submicron particles, measuring range 1nm ~ 5? M. ? Based particle Brownian motion? Brownian motion of the particle size measuring method based on the Brownian motion is suspended in a medium (gas or liquid) of fine particles and medium molecular interaction even constant random motion. Although no law Brownian motion looks complicated, however, scientists have revealed some deep research or statistical regularities of their Brownian motion, that under certain conditions and within a certain time, the average displacement of particles moving average has a certain values, and the average displacement is inversely proportional to the square of the particle diameter. Brownian motion of the particles based on the displacement of the center of the particle trajectory method and based on the speed of light Brownian motion stitch feasibility study has been carried out. Based on the particle size measurement method for the precise measurement of the Brownian motion of the particle size distribution of ultrafine particles has opened up new areas of technology? Based particle size measurement method Brownian motion Brownian motion is suspended in the medium (gas or liquid) of fine particles and medium molecular Even the constant interaction of random motion. Angle drops wholesale, drop angle, ShengDing instruments provided by Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) strong, credible, in Dongguan, Guangdong specialized instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead ShengDing instrument and you hand into the brilliant, for a better future!