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

Previous
page Electrical properties

Dust

Bibliography

(1) - TEUNOU (E.), FITZPATRICK (J.-J.) - Effect of storage time and consolidation on food powder flowability. - Journal of Food Engineering, 43, p. 97-101 (2000).
(2) - RUMPF (H.) - Particle technology. - Chapman and Hall (1979).

Also in our database

SALEH (K.), GUIGON (P.) - Mise en œuvre des poudres. Caractérisation et analyse des propriétés des solides divisés. -

Websites

http://www.kona.or.jp/index_e.html

http://www.bulk-online.com

http://www.directindustry.fr

http://www.hansonresearch.com

...

Events

Science et Technologie des Poudres (STP) et Matériaux frittés Triennial Symposium. May 27-29, 2009, Montpellier.

Société Française du Génie des Procédés (SFGP) biennial congress. October 14-16, 2009, Marseille.

World Congress on Particle Technology Congress held every 3-4 years. April 26-29, 2010, Nuremberg, Germany.

International Congress on Particle Technology...

Standards and norms

Code of practice for Control of undesirable static electricity. Part 2 : Recommendations for particular industrial situations - BS 5958-2 - 1991
Matériels électriques destinés à être utilisés en présence de poussières combustibles. 2e partie : Méthodes d'essai. Section 2 : Méthode de détermination de la résistivité électrique des couches de poussière. Paris La Défense, Union Technique de l'Électricité - CEI 61241-2-2...