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Development of an optimum particle collector for absolute determination of particle shape, size, and concentration

Abstract

The present research report describes the development of a new particle collector system. Copper oxide whiskers that have been grown on fine meshed and highly transparent bronze wire nets are the collectors in this process. After the sampling by means of a probe from gaseous flows an absolute determination of shape and size is provided by electron microscope pictures of the individual meshes where liquid-droplets or solid particles adhesively stick to the whiskers. As experiments have shown, whisker collectors are especially suited for the analysis of fine aerosols below 1 micron and of droplets as well as for the determination of the shape of the collected particles. In connection with isokinetic sampling, whisker collectors can also be used for absolute calibration of optical particle sizers with real aerosols. The suction probes and pump units especially developed for isokinetic sampling are also described in the present report as well as the method of growing the whiskers and the methods for picture analysis of particle-loaded whisker nets.
Publication Date:
Jan 01, 1981
Product Type:
Technical Report
Report Number:
BMFT-FB-T-81-029
Reference Number:
ERA-07-038850; EDB-82-096811
Subject:
42 ENGINEERING; COPPER OXIDES; WHISKERS; PARTICLE SIZE CLASSIFIERS; SAMPLERS; PARTICLE SIZE; AEROSOLS; DESIGN; IMAGE PROCESSING; CHALCOGENIDES; COLLOIDS; COPPER COMPOUNDS; CRYSTALS; DISPERSIONS; EQUIPMENT; LABORATORY EQUIPMENT; MONOCRYSTALS; OXIDES; OXYGEN COMPOUNDS; PROCESSING; SCREENS; SIZE; SOLS; TRANSITION ELEMENT COMPOUNDS; TROMMELS; 424000* - Engineering- Pollution Control Equipment- (1980-1989)
OSTI ID:
5592110
Research Organizations:
Bundesministerium fuer Forschung und Technologie, Bonn (Germany, F.R.)
Country of Origin:
Germany
Language:
German
Availability:
Bundesministerium fuer Forschung und Technologie, Bonn (Germany, F.R.).
Submitting Site:
HEDB
Size:
Pages: 47
Announcement Date:
Feb 01, 1982

Citation Formats

Kleine, R, and Bittighofer, S. Development of an optimum particle collector for absolute determination of particle shape, size, and concentration. Germany: N. p., 1981. Web.
Kleine, R, & Bittighofer, S. Development of an optimum particle collector for absolute determination of particle shape, size, and concentration. Germany.
Kleine, R, and Bittighofer, S. 1981. "Development of an optimum particle collector for absolute determination of particle shape, size, and concentration." Germany.
@misc{etde_5592110,
title = {Development of an optimum particle collector for absolute determination of particle shape, size, and concentration}
author = {Kleine, R, and Bittighofer, S}
abstractNote = {The present research report describes the development of a new particle collector system. Copper oxide whiskers that have been grown on fine meshed and highly transparent bronze wire nets are the collectors in this process. After the sampling by means of a probe from gaseous flows an absolute determination of shape and size is provided by electron microscope pictures of the individual meshes where liquid-droplets or solid particles adhesively stick to the whiskers. As experiments have shown, whisker collectors are especially suited for the analysis of fine aerosols below 1 micron and of droplets as well as for the determination of the shape of the collected particles. In connection with isokinetic sampling, whisker collectors can also be used for absolute calibration of optical particle sizers with real aerosols. The suction probes and pump units especially developed for isokinetic sampling are also described in the present report as well as the method of growing the whiskers and the methods for picture analysis of particle-loaded whisker nets.}
place = {Germany}
year = {1981}
month = {Jan}
}