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Cloud, aerosol and precipitation spectrometer with depolarization
Cloud, aerosol and precipitation spectrometer with depolarization

Cloud, aerosol and precipitation spectrometer with depolarization

The CAPS-DPOL is a multipurpose, research-grade cloud spectrometer that includes three Droplet instruments (CIP, LWC, and CAS), temperature and relative humidity sensors and polarization measurement to discriminate between water and ice.



Technology: particle imaging, polarization detection and hotwire sensing

The three Droplet instruments included in the CAPS-DPOL are the Cloud Imaging Probe (CIP), the Cloud and Aerosol Spectrometer with Depolarization (CAS-DPOL), and the Hotwire Liquid Water Content Sensor (Hotwire LWC).


CIP:

  • Shadow images of particles passing through a collimated laser beam are projected onto a linear array of 64 photodetectors to determine presence of particles.
  • Particle images are reconstructed from individual “slices,” where a slice is the state of the 64-element linear array at a given moment in time.

CAS-DPOL:

  • The CAS-DPOL collects forward-scattered light to determine particle size, and polarized back-scatter light to differentiate between spherical and aspherical particles.

LWC:

  • The LWC features a coiled wire that is maintained at 150 °C, which acts as variable resistance in a Wheatstone Bridge circuit.
  • The resistance of the sensing coil is directly proportional to its temperature.
  • Power dissipated by the sensor to maintain temperature is used to calculate vaporization, and in turn, liquid water content.


Get more info:

Contact the Envicontrol team

Droplet CAPS datasheet

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We participate in various fairs and seminars around Europe where we can keep you informed of the latest developments and possibilities in the field of measurement and analysis equipment. Below you will find an overview of the events we visited recently and the events where you can meet us soon.

Contactinformation

Envicontrol Belgium

P +32 (0) 81 713 491

Rue Phocas Lejeune 25
B-5032 Les Isnes
Belgium

Envicontrol Deutschland

P +49(0)221 7907 7054

Waidmarkt 11
DE-50676 Köln
Deutschland

Envicontrol France

P +33(0)1 39 76 04 19

Route de Sartrouville 54
F-78230 Le Pecq
France

Envicontrol Nederland

P +31(0)418 651 158

Valeton 25
5301 LW Zaltbommel
Nederland
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