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Related Experiment Video

Updated: Jul 2, 2026

Additive Manufacturing-Enabled Low-Cost Particle Detector

Additive Manufacturing-Enabled Low-Cost Particle Detector

Published on: March 24, 2023

Electronic detector for conducting particles and fibrils.

R D Shelton¹, J A Morrissey

¹US Army Ballistic Research Laboratory, Aberdeen Proving Ground, Maryland 21005.

The Review of Scientific Instruments

|April 1, 1979

Summary

Airborne conducting particles and fibrils charge and repel from surfaces. Analyzing charging pulses reveals particle size and frequency, aiding in airborne particle characterization.

Area of Science:

Physics
Materials Science
Electrical Engineering

Background:

Airborne conducting particles pose challenges in various environments.
Understanding particle-surface interactions is crucial for safety and process control.

Purpose of the Study:

To investigate the charging dynamics of airborne conducting particles upon contact with charged surfaces.
To develop a method for characterizing airborne particles using their charging behavior.

Main Methods:

Simulating the electrostatic interaction between airborne particles and a charged surface.
Measuring charging pulses generated during particle-surface contact.
Utilizing a pulse height analyzer to process charging pulse data.

Main Results:

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Airborne conducting particles acquire charge upon striking a charged surface and are repelled.
Each particle contact generates a measurable charging pulse.
Pulse height analysis provides data on particle size and frequency.

Conclusions:

The charging pulse method is effective for characterizing airborne conducting particles.
This technique offers insights into the size distribution and frequency of airborne contaminants.
Potential applications include environmental monitoring and industrial process control.