Brief introduction: BT - 90 dynamic light scattering its principle is that when the laser granulometer nano particles dispersed in the liquid, the nano particles in the liquid molecular Brownian motion under the impact of irregular movement, the smaller the particle, the faster the speed of the movement, the greater the amplitude; The particles, the greater the speed slower, the smaller the amplitude. When the laser beam to the nanoparticles would produce a pulse scattering light signal, the signal intensity of light the movement of the particles and the rate of change of state (velocity and amplitude), are related to particle size, through the photomultiplier tubes will be the pulse of the scattered light receiving signal into electrical signal, again through the digital correlator, identify effective dynamic light scattering signals, then through special software inversion processing, using Stokes - Einstein equation of nanometer particle size and particle size distribution is calculated. Technical parameters Measuring range: 1 nm to 9500 nm (related to the sample) Concentration range: 0.1-100 mg/ml (about) to the sample Sample pool size: 8 ml and 0.5 ml Analysis: NNSL, multimodal and CONTIN Sample pool temperature control range: 15 ℃ to 90 ℃ Laser source: 20 mw 635 nm solid laser Scattering Angle: 90 o Detector: the PMT (photomultiplier tubes) Correlator: 1-200 physical channel 5 us dynamic sampling time and delay time Environmental requirements: temperature: 10-75 ℃; Humidity 0-95%; No condensation
Brief introduction: BT - 90 dynamic light scattering its principle is that when the laser granulometer nano particles dispersed in the liquid, the nano particles in the liquid molecular Brownian motion under the impact of irregular movement, the smaller the particle, the faster the speed of the movement, the greater the amplitude; The particles, the greater the speed slower, the smaller the amplitude. When the laser beam to the nanoparticles would produce a pulse scattering light signal, the signal intensity of light the movement of the particles and the rate of change of state (velocity and amplitude), are related to particle size, through the photomultiplier tubes will be the pulse of the scattered light receiving signal into electrical signal, again through the digital correlator, identify effective dynamic light scattering signals, then through special software inversion processing, using Stokes - Einstein equation of nanometer particle size and particle size distribution is calculated.
