Brand: Jiuban
Model: JB-N9
Name: Optical correlation nanometer particle size analyzer
一、Product Overview：
　　JB-N9 is the latest nanometer particle size analyzer based on the principle of dynamic light scattering. It uses high-speed digital correlator and professional high-performance photomultiplier tube as the core device. It has the characteristics of fast, high resolution, repeatability and accuracy. It is the preferred product for nanoparticle size determination.
二、The control system schematic diagram is as follows:

Basic Principle Chart of Photon-Dependent Nanometer Particle Size Meter

三、Product Principle:
　　The instrument uses the principle of dynamic light scattering and photon correlation spectroscopy to measure the particle size according to the Brownian motion velocity of particles in liquid. Small particles have fast Brownian motion and large particles have slow Brownian motion. When laser irradiates these particles, the scattered light will fluctuate in different speeds and sizes. Photon correlation spectroscopy is used to analyze the particle size according to the fluctuation of photons in a specific direction. Therefore, the instrument has the characteristics of advanced principle and high precision, which ensures the authenticity and validity of the test results. It is the preferred instrument for particle size determination of nano-stimulated particles.
四、Main technical parameters:
Specification Model: JB-N9
Implementation criteria: GB/T 29022-2012/ISO 22412:2008
Test range: 1-10000mm (related to sample)
Concentration range: 0.1mg/L-1100mg/L
Accuracy error: < 1% (average particle size of national standard sample)
Repeatability error: < 1% (average particle size of national standard sample)
Laser: lambda = 532 nm, LD pumped laser (unique with temperature control protection)
Detector: HAMAMATSU photomultiplier tube (PMT), using single-mode polarization-maintaining fiber
Scattering angle: 90 degrees
Digital correlator: high-speed photon correlator developed by ASIC
Sample pool: 10mm*10mm, 4ml (with temperature control protection)
Software function: one-button measurement, automatic optimization of measurement parameters, easy generation of test reports
Output items: average particle size, multi-dispersion coefficient, particle size distribution curve, particle size distribution table, etc.
Temperature range: 8-45 C (temperature accurate to 0.1 C)
Test speed: <1 Min/time (without sample dispersion time)
Instrument volume: 390 mm *255 mm *240 mm
Power supply: AC100-260V, 50/60Hz, maximum power 80W
Use environment: temperature: 15-40 C, humidity 20-70%. non-condensing
Data processing: Optimal fitting cumulative analysis method and improved normalization algorithm can give average particle size and particle size distribution curve.