MonoJet

Our MonoJet monodisperse droplet/aerosol generator is a portable, battery-powered instrument for field calibration of cloud probes, precipitation and aerosol analyzers.

There are three configurations of the MonoJet:

  • Large droplet generator: MonoJet-LDG
  • Ideal for calibration of precipitation measurement instruments
  • Droplet diameter range: ∼100–1200 μm
  • Stroboscopic illuminator validates droplet size
  • Small droplet generator: MonoJet-SDG
  • Ideal for calibration of cloud probes
  • Droplet diameter range: from 20–30 μm to 100 μm
  • An imaging module validates droplet size
  • Coarse mode aerosol generator: MonoJet-CMAG
  • Ideal for calibration of coarse mode aerosol analyzers
  • Particle size range: ∼1–10 μm
  • Imaging module and OPC validate the aerosol particle size

monojet-config

The MonoJet is ideal for field calibration of atmospheric measurement instrumentation such as coarse mode aerosol analyzers, in situ cloud probes, and precipitation measurement instruments such as disdrometers.

Principle of operation.  Generation of monodisperse droplets is based on disintegration of a cylindrical liquid jet caused by periodic perturbation applied to the jet. This effect is commonly referred to as Savart–Plateau–Rayleigh instability of a liquid column. When solutions are used instead of pure water (with subsequent drying), the instrument generates monodisperse aerosols of the solute.

  • The instrument provides the following competitive advantages:
  • Field deployable — have confidence that your field campaign measurements provide accurate results!
  • A 3-in-1 ready instrument generating a broad range of droplet and aerosol sizes
  • Detachable hand-held nozzle unit for hard-to-reach sampling zones