K. Schaber et al., 3-WAVELENGTH EXTINCTION TECHNIQUE FOR CHA RACTERIZING AEROSOLS UNDER INDUSTRIAL CONDITIONS, TM. Technisches Messen, 61(7-8), 1994, pp. 295-300
A new developed in-situ and on-line measuring device has been adapted
to the conditions of industrial gas cleaning equipment in order to rea
lize measurements of particle sizes and concentrations of aerosols. It
has been used to characterize hydrochloric acid, sulphuric acid and s
alt solution droplets. The measuring method is based on the three-wave
length extinction technique. The results, which have been achieved wit
h this method, have been compared with measurements of a particle samp
ler for silizium dust and oil droplets and with chemical analysis for
acid aerosols. There has been good agreement between the different mea
suring techniques. The method has successfully been tested in particul
ar for liquid aerosols with high particle concentrations up to 10(9) p
articles/cm3.