How to Choose Laser Particle Size Analyzer With Good Performance
With the domestic laser particle size analyzer sales increased in the market every year, Instruments function become
more powerful, and more and more choices for customers, so how to choose a high efficient cost of the instrument
as a user concerns, the paper discusses several key factors affecting performance of laser particle size analyzer.

1, Instrument test size range and resolution
At the same price, customers will often choose a wider range of test instruments manufacturers, everything has two
sides, Enlarge laser particle size analyzer test range have a variety of ways:lengthening the optical path, the replacement
of lasers of different wavelengths, increasing the lens or laser, spectral enlarge etc. Laser particle instrument enlarge test
range, other key indicators will be changed also.
Customers generally have two purposes: to guide research and production, the first choice should be to test the stability
and repeatability, accuracy can be calibrated by national standard material and other indirect methods, in scientific
research and the production process improved technology, witha particle size test results should be changed, if the test
is unstable and low repeatability, then there is no guidance for the research and production.
Therefore, when selecting the instrument test range,customer could choose instruments,according to actual needs,
manufacturers reported a range of particle size measurement are boundaries, Suggest customer when communicate
with manufacturer, can offer these 2 items, the test sample median diameter and particle size upper and lower limits,
it is easy to recommend a suitable instrument for customers.
2, Intelligent instrument operation
Laser particle size analysis instrument is different from to other test instruments, the effect of laser particle size analyzer
test results have many factors, Improving the operation of intelligent instrument can effectively improve the stability and
accuracy of the test results reported in many articles.
(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:

For the optical path, Each channel of the photoelectric detector array correspond to corresponds to a characteristics
particle size, If the optical path alignment occurs the deviation,when the scattered light reaches the photodetector array,
the number of channels shift also occurred, would have a greater impact on the test results
If manual calibration way, each of the result is different, but automatic way could keep same result each time.
(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.Therefore, When choose laser particle size analyzer, one key
realize operation model will be good, if manual and intelligent operations are easy to choose, there will be better,
because it will not onlyapply to ordinary test, but also be used in materials scientific research.For factories and institutions
of many samples need be tested, autosampler is good to choose, Importing auto-sampler cost can buy a domestic laser
particle size analyzer.
(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,HeNe laser is mainly used in short optical path, short testing range of laser particle size
instrument ; solidstate laser spot and power are good, but its stability is poor, life is short; semiconductor lasersdeveloped
rapidly in recent years, semiconductor laser light is not round, but can be output throughthe 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 areunreasonable, too few channels
lower resolution,too much channels low repeatability , so Probe channels numbers should correspond to the test rage of
equipment.
(3)Alignment accuracy
Laser particle size analyzer general accuracy is micrometer level, our laser particle size analyzer is up to 0.4 microns.
(4)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.