Development and Preliminary Testing of a Device for Electrostatic Classification of Submicron Airborne Particles

Journal Article · Mon May 01 04:00:00 EDT 1961 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1736140· OSTI ID:4016036

Langer, G.; Radnik, J. L.

An apparatus is developed for electrostatic size classification of aerosol particles of 0.1 micron to a few microns in diameter. The aerosol, surrounded by a sheath of clean air, is charged by passing it closely over an intense positive discharge at high speed. It enters an electrostatic field between parallel plates as a fine filament at 1 m/sec. Charging rates several times above those predicted by conventional theory permit good resolution. A high natural charge on the aerosols has an adverse effect on classification. Various aerosols are examined, and results of practical significance are obtained. With salt aerosols, strong, higher-order Tyndall spectra are observed from the classified deposit. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-018301
• OSTI ID: 4016036
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 32; ISSN JAPIAU; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AEROSOLS
AIR
CONTROL
DEPOSITS
ELECTRIC CHARGES
ELECTRIC DISCHARGES
ENGINEERING AND EQUIPMENT
INSTRUMENTS
PARTICLES
SPECTRA
VELOCITY