echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Active Ingredient News > Drugs Articles > Where are particle counters used?

    Where are particle counters used?

    • Last Update: 2022-10-10
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Particle counter is a very popular product now.
    It is very usable.
    Its light source requires high stability, long life, and no interference.
    It can analyze particle impurities with a particle size of 011 μm in gas; Ar2Kr laser particle counter can be used.
    For the analysis of 0105μm particle size impurities, there are currently particle counters that can detect 01005μm in ultra-high purity gas
    .

    Condensation particle counters can measure nanometer-sized particles
    .

    A particle counter is an instrument used to measure the number and particle size distribution of dust particles per unit volume in a clean environment
    .

    It can be widely used in various provinces and cities drug inspection institutes, blood centers, epidemic prevention stations, disease control centers, quality supervision institutes and other institutions, the electronics industry, pharmaceutical workshops, semiconductors, optical or precision machining, plastics, painting, hospitals, environmental protection, inspection such as production enterprises and scientific research departments
    .

    Particles in the air will scatter when illuminated by light, a phenomenon called light scattering
    .

    Light scattering is related to factors such as particle size, light wavelength, particle refractive index, and particle absorption characteristics of light
    .

    However, in terms of scattered light intensity and particle size, there is a basic law that the intensity of scattered light by particles increases with the increase of the surface area of ​​the particles
    .

    In this way, the size of the particles can be inferred only by measuring the intensity of the scattered light, which is the basic principle of the light scattering particle counter
    .

    In fact, the scattered light intensity generated by each particle is very weak, which is a small light pulse.
    It needs to be amplified by a photoelectric converter to convert the light pulse into an electrical pulse with a large signal amplitude, and then pass through the electronic circuit.
    Further amplification and discrimination are performed to complete the counting of a large number of electrical pulses
    .

    At this time, the number of electric pulses corresponds to the number of particles, and the amplitude of the electric pulses corresponds to the size of the particles
    .

    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Related Articles

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.