ISO 22412 Optical Related Nano Particle Size Analyzer Nano Granulometer 1-10000nm

ISO 22412 Optical Related Nano Particle Size Meter Nano Granulometer 1-10000nm

LR-N009 is the latest nanoparticle analyzer based on the principle of dynamic light scattering. Adopting high-speed photon correlators and professional high-performance photomultiplier tubes as core components, it features rapidity, high resolution, repeatability and accuracy, and is the preferred product for the determination of nanoparticle size.

Main performance features
1. Advanced testing principle
This instrument adopts the principle of dynamic light scattering and photon correlation spectroscopy technology to measure the size of particles based on their Brownian motion speed in a liquid. Small particles have a fast Brownian motion speed, while large particles have a slow Brownian motion speed. When a laser beam is shone on a moving particle, the light scattered at a certain Angle (90 degrees is adopted by this instrument) undergoes dynamic changes over time, and the rate of change is related to the Brownian motion velocity of the particles in the liquid. The dynamic scattering spectra were statistically analyzed and correlated by using the photon correlation spectroscopy method. Calculate the particle size according to the Stoke-Einstein equation.
2. High sensitivity and SIGNal-to-noise ratio
HAMAMATSU professional high-performance photomultiplier tube (PMT) with low dark count and high sensitivity is used as the detector, which has extremely high sensitivity and signal-to-noise ratio for photon signals, thus ensuring high accuracy and high resolution of test results;
3. Powerful computing capabilities
To determine the size of nanoscale particles using PCS technology, it is necessary to be able to resolve signal fluctuations on the nanosecond scale. The core of the instrument utilizes a high-speed photon correlator developed by ASIC with a high resolution of 6ns and extremely high signal processing speed. It can quickly collect photon numbers and calculate correlation operations in real time, laying the foundation for test accuracy.
4. Stable optical path system
The photon correlation spectroscopy detection system combined with a thermostatically controlled high-power semiconductor laser and optical fiber makes it not only small in size, but also has strong anti-interference ability and stability, ensuring the repeatability of the test results;
High-precision temperature control system: the precision of the sample cell temperature control system and laser temperature control system can reach ±0.1ºC, so that the sample under test and the laser light source are at a constant temperature throughout the test process, avoiding the influence of temperature changes on the test results and ensuring the accuracy and repeatability of the test;
5. Super functional analysis software
The inversion algorithm in the analysis software adopts the cumulative measurement method recommended by international standards as well as algorithms such as Non-Negative Least Squares (NNLS) and Contin, and the test results are in good agreement with similar products of international authorities.
6. Accurate and stable test
The perfect combination of high-performance hardware and standardized international inversion algorithms makes the test results of LR-N009 accurate and repeatable, and the test accuracy and repeatability are higher than the requirements of international standards.
New heat dissipation system
The new LR-N009 adopts a dual airflow design, where hot air is discharged directly from the instrument casing. Important parts such as multiplier tubes, lasers, correlators, etc. are no longer affected by the hot airflow, resulting in more accurate and stable measurements, and at the same time, greatly extending the service life of these important parts.
Automatic sensing sliding door
The new LR-N009 is equipped with an automatic colorimetric door opening and closing function. The sliding door automatically opens when the hand is close to the instrument, making it easy for the tester to reach the colorimetric door, and automatically closes when the hand is away from the instrument.
This nano particle meter has reached the testing level of foreign nano particle meter.

Technical parameters and detailed configuration