1. Home
  2. Mechanics
  3. Additive manufacturing -3D printing
  4. Characterization and analysis of powders

  5. Measurement of electrostatic charge and charge distribution

Article | REF: J2252 V1

Characterization and analysis of powders

Authors: Khashayar SALEH, Pierre GUIGON

Publication date: March 10, 2009, Review date: December 1, 2022 | Lire en français

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Automatically translated using artificial intelligence technology (Note that only the original version is binding) > find out more.

    A  |  A

    4. Measurement of electrostatic charge and charge distribution

    It is recognized that either the charge distribution or the mass charge of particles plays an important role in their behavior. The presence of bipolar charges can reduce deposition efficiency in electrostatic coating processes. In the powder conveying industry, the presence of bipolar charges leads to fouling and electrostatic discharges, as well as ignition risks. It is therefore essential to have methods for qualifying and/or quantifying the polarity and level of electrostatic charges present within powder particles. This objective can be achieved by various devices described below.

    4.1 Faraday cage

    The Faraday cage (figure ) is one of the most common devices for measuring powder charge. A Faraday cage consists of two concentric cylinders...

    You do not have access to this resource.

    Exclusive to subscribers. 97% yet to be discovered!

    You do not have access to this resource.
    Click here to request your free trial access!

    Already subscribed? Log in!

    The Ultimate Scientific and Technical Reference

    A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
    + More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
    From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

    This article is included in

    Additive manufacturing -3D printing

    This offer includes:

    Knowledge Base

    Updated and enriched with articles validated by our scientific committees

    Services

    A set of exclusive tools to complement the resources

    Practical Path

    Operational and didactic, to guarantee the acquisition of transversal skills

    Doc & Quiz

    Interactive articles with quizzes, for constructive reading

    Subscribe now!

    Ongoing reading
    Measurement of electrostatic charge and charge distribution
    Outline