
The use of two laser diodes with different wavelengths allows a high-resolution detection of even small spherical particles and their accurate classification. The application of two light sources with monochromatic light of different wavelengths for scattered light generation has the advantage to level out discontinuities i.e. that particles whose size falls within this range are difficult to distinguish from one another. Additionally, the aerosol spectrometer is characterized by integrated sampling, intelligent volume flow control and compact design. The Laser Aerosol Spectrometer LAP 323 meets all technical requirements for aerosol spectrometers as described in ISO 21501-1 and VDI guideline 3867 part 4.
ISO 21501-1
Determination of particle size distribution — Single particle light interaction methods Part 1: Light scattering aerosol spectrometer
VDI 3867 Blatt 4
Measurement of particles in ambient air - Determination of the particle number concentration and particle size distribution of aerosols - Optical aerosol spectrometer
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