Fog Monitor (FM-120)
The Fog Monitor is Droplet’s premier instrument for optical spectrometer .


Product Description This optical spectrometer continuously samples droplet-laden ambient air and produces size distributions in the range from 2 µm to 50 µm.
 Advantage Characteristics  Technical Parameter  Application Scope  Classic Cases
Advantage Characteristics
Depend on automatic correction for drifts in polarization signals through the dynamic thresholding feature. Sampling frequency, resolution and filing interval can be set as required Get high-resolution information on particle light-scattering intensity with the PBP optional feature. This allows much more precise and detailed size distributions, as well as minimization of the well-known Mie scattering ambiguities.
Rely on the only all-weather ground-based instrument capable of measuring particle size distributions (PSDs) in the 2 µm to 50 µm size range – critical for understanding the evolution of fog, and useful for calculating number concentration, liquid water content, and extinction/visibility. Access raw data for one particle in each sampling instance. Use this information as an important instrument diagnostic.
Technical Parameter
  • Measured Parameters Single-particle forward light scattering
  • Derived Parameters Particle diameter Particle number concentration Liquid water content (LWC) Effective diameter (ED) Median volume diameter (MVD)
  • Auxiliary Parameters Temperature Pressure
  • Particle Size Range Droplets with 2-50 µm diameter
  • Typical Sample Area 0.24 mm2
  • Sample Flow Volume 1 m3/ min
  • Sampling Frequency Standard Data Rate: Selectable, 0.04 sec to 20 sec PBP Data Rate: No limit until particles are coincident
  • Refractive Index Non-absorbing, 1.33 (the industry standard for water)
  • Light Collection Angles 3.5° ~ 12°
  • Data System Interface RS-422 serial interface up to 460 kB
  • Environmental Operating Conditions Temperature: -40 to 40 °C Relative Humidity: 0 - 100%, non-condensing Altitude: 0 - 4,000 meters
  • Weight 18.5 kg (instrument), 13.0 kg (pump & hose)
  • Probe Dimensions 23 cm H x 28 cm W x 37 cm L
  • Power Requirements Universal input for analyzer head, 50-60 Hz 115-120V or 230V for pump (set at factory, but user-configurable) 200W (instrument), 400W (pump)
Application Scope
Weather Modification Research
Visibility & Fog Studies
Hangzhou Shallow-Sea Technology Co., LTD.
Hangzhou Shallow-Sea Technology Co., LTD.
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Contact
Hangzhou Shallow-Sea Technology Co., LTD.T1-11F, Herui Science and Technology Park, Binjiang District, Hangzhou City, Zhejiang Province
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86-0571-81956003
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Hangzhou Shallow-Sea Technology Co., LTD.