1, Instrument test size range and resolution
Generally, for nano particle size distribution test, Dynamic light scattering Nano particle size analyzer is recommended, measuring range is 1nm-10000nm.
For micronmeter, Static Light Scattering Nano particle Size Analyzer.
If your products are belong to sub-micron meter range, nano particle size analyzer will be suitable for you, though micron level particle size analyzer measuring range is 0.1 micron /0.01 micron to 2000 micron, 0.01 micron is the lower limitation of micron laser particle size analyzer, therefore the lower limitation test is not stable according to laser diffraction theory, therefore, nano particle size analyzer will be better.
2, Intelligent instrument operation
(1)Intelligent optical path alignment system
Laser particle size instrument measuring principle is based on small scattering angle of large angles,big scattering angle of small particles, arrange photoelectric detector array for spectral acquisition,
(2)Intelligent testing process
Dispersion time, save the data time, these are some factors effect test of laser particle size analyzer ,More and more intelligence become laser particle size analyzer trends.
arrange photoelectric detector array for spectral acquisition:
(3)Intelligent Results output
Laser particle size analyzer results in the testing process is a process of change, and the greater amount data of the test results, usually one second 2 data, how to scientifically deal with these data to obtain a final size test results, the user is unable to do, and therefore the result output should be intelligent.
3, The key hardware parameters
(1)Laser
He-Ne laser:He-Ne laser is successfully developed the first gas laser, good Monochrome.
Solid laser: With a solid-state laser materials as the working substance lasers.
Semiconductor lasers: laser diode, is a semiconductor material used as the working substance lasers.
Now laser laser particle size analyzer mainly adopt these three kinds, He-Ne laser Monochrome is good, but limited by the influence of laser power, He-Ne laser is mainly used in short optical path, short testing range of laser particle size instrument ; solid-state laser spot and power are good, but its stability is poor, life is short; semiconductor lasers developed rapidly in recent years, semiconductor laser light is not round, but can be output through the optical fiber to form a fiber optic market is now more popular a semiconductor laser. Particle Sizer domestic manufacturers are also trying to use this new laser, Winner use fiber lasers as light sources in the new products.
(2)Probe Channels
Set probe channels of particle size analyzer have certain rules, too much and too little are unreasonable, too few channels lower resolution,too much channels low repeatability , so Probe channels numbers should correspond to the test rage of equipment.
(2)Alignment accuracy
Laser particle size analyzer general accuracy is micrometer level, our laser particle size analyzer is up to 0.1 microns.
(3)Data acquisition speed
Different types of laser particle size analyzer have different data acquisition speed, For the particle size analyzer need cyclically measuring sample , such as wet laser particle size analyzer, no need high data acquisition speed, but for a single test particle size analyzer, such as spray and dry particle size analyzer for data acquisition speed requirement is relatively high, and now laser particle size analyzer in market is generally 1000 times / second
4, Routine maintenance convenience and use cost
This is a key factor to judge if laser particle size analyzer is high efficient-cost, such as sample-cell cleaning convenience, after-sales service response time , the guarantee maintenance costs out of guarantee time etc.
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