Main Performance Features:
Advanced testing principle: This instrument uses the dynamic light scatering principle and photon correlationspectroscopy technology to determine the particle size according to the speed of the Brownian motion of the particlesin the liquid. The Brownian motion of small particles is fast, and the Brownian motion of large particles is slow.When laser light iradiates these particles, particles of different sizes will cause the scattered light to fluctuate atdiferent speeds. Photon correlation spectroscopy analyzes the particle size according to the fluctuation of photonsin a specific direction. Therefore, this instrument has the characteristics of advanced principle and high precision, thus ensuring the authenticity and validity of the test results, it is the preferred instrument for particle size determination of nano-excited particles
High sensitivity and signal-to-noise ratio: The detector of this instrument adopts professional-grade high-performance photo multiplier tube(PiT), which has extremely high sensitivity and signal-to-noise ratio to photon signals, thus ensuring the accuracy of test results;
Extremely high resolving power and powerful computing function: Using PCS technology to determine the sizeof nano-scale particles must be able to distinguish nano-second signal fluctuations. The core component of this instrument adopts a hiah-speed photon correlator developed by an application-specific intearated circuit ASlC.which has a very high resolution capability of 6ns and a very high signal processing speed, which can quickly collect photons in real time and calculate related operations. Base.
Stable optical path system: The optical path system constructed with short-wavelength LD pump laser light source and optical fiber technology makes the photon correlation spectrum detection system not only small in size, but also has strong anti-interference ability, thus ensuring the stability of the test.
High-precision temperature control system:The accuracy of the sample cell temperature control system and the laser temperature control system is as high as ±0.1 °C,so that the tested sample and the laser light source are kept at a constant temperature during the entire test process, avoiding the influence of temperature changes on the test results.ensuring that Testing is accurate and repeatable.
Super powerful analysis software: The inversion algorithm in the analysis software adopts the cumulant methodrecommended by international standards, as well as the commonly used non-negative least squares (NNLS) and Contin algorithms. have good consistency;
Accurate and stable testing: The perfect combination of high-performance hardware and interationally standardizedinversion algorithms has created the accuracy and repeatability of Nano90 test results. lts test accuracy and repeatabilityare higher than the requirements of international standards.
Technical Parameters:
Model | BPSA-N9 |
Test Range | 1~10000nm(Related to the sample) |
Concentration Range | 0.1mg/L~100mg/L |
Accuracy Error | <1%(National standard sample average particle size) |
Repeatability Error | <1%(National standard sample average particle size) |
Laser | λ=532nm,LD pump laser(Unique with temperature control protection) |
Detector | HAMAMATSU photomultiplier tube(PMT),Using single-mode polarization-maintaining fiber |
Scattering Angle | 90° |
Digital Correlator | High-speed photon correlator developed by ASlC, physical channel: 512. Equivalent channel:10000,baseline channel: 8. Sampling and delay time: 1us~200us dynamically adjustable Minimum resolution: 6ns |
Sample Cell | 10mm*10mm, 4ml(With temperature control protection, with automatic induction sliding door) |
Cell Placement Window | With automatic sensor sliding door |
Data Processing | The best fitting cumulative analysis method and improved normalization algorithm can give the average particle size and particle size distribution curve |
Software Function | One-click measurement, automatic optimization of measurement parameters, particle size distribution table, etc |
Qutput Item | Average particle size, polydispersity coefficient, particle size distribution curve, particle size distribution table, etc. |
Temperature Range | 8~45°C(temperature accurate to 0.1°C) |
Temperature Display | Instrument real-time temperature display |
Temperature Regulation | External direct temperature adjustment, no need to open the case |
Test Speed | <1Min/time(excluding sample dispersion time) |
Power Supply | AC100~260V, 50/60Hz, maximum power 80W |
Use Environment | Temperature: 15~40℃, humidity 20~70%, no condensation |
