RPG-MWSC-160 - Radiometer Physics Gmbh
RPG-MWSC-160 - Radiometer Physics Gmbh
RPG-MWSC-160 - Radiometer Physics Gmbh
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Microwave ScintillometerScintillometers<strong>RPG</strong>‐<strong>MWSC</strong>‐<strong>160</strong>ApplicationsDirect measurement ofevapotranspiration(latent heat flux, L V E)Significant variable forAgricultureIrrigationWater managementHydrologyWeather forecastingRadiation budgetConcept and FeaturesTransmit/Receiver systemTransmitter: Constant signalReceiver: observes fluctuationsInformation Content:Turbulence modulates the refractive index ofair, which leads to intensity fluctuationsMethod needs simultaneous measurement ofsensible heat flux H by large‐aperture opticalscintillometer (LAS)High frequency for good co‐spectrum with LASand small beamUses hardware developments from spaceprojects (166 GH LO‐driver for 664 GHz ICIchannels, 150 GHz receiver front endtechnology)Data Interface: analogue or digital<strong>RPG</strong> and Wageningen University (The Netherlands)have developed this prototype of a microwavescintillation system in the OMS (Optical and MicrowaveScintillation) project, jointly funded by STW, TheNetherlands, and <strong>RPG</strong>. The instrument will be availableto the market in early 2013.<strong>RPG</strong>‐SCI‐<strong>MWSC</strong>‐TN01‐2012‐09 Page 1 / 2 www.radiometer‐physics.de<strong>Radiometer</strong> <strong>Physics</strong> GmbH +49 2225‐99981‐0Birkenmaarstrasse 10info@radiometer‐physics.de53340 Meckenheim, Germany 2012‐09‐24 radiometer‐support@radiometer‐physics.de
Microwave ScintillometerScintillometers<strong>RPG</strong>‐<strong>MWSC</strong>‐<strong>160</strong>1.8Detailed Instrument SpecificationsParameterFrequencyRadiated powerAntenna typeAntenna gainBeam widthDetection bandwidthFrequency stabilitySpecification<strong>160</strong>.8 GHz (λ=1.86 mm)30 – 60 mWCassegrain with 300 mm aperture51 dB1.0° FWHM10 kHz< 1 kHzGain stability > 2.5 × 10 ‐6Temperature stabilityPower supplyPower consumptionOutput signalsType of installationBaseline length< 0.03 K (two‐stage control)24 V DCapprox. 50 W with thermal controlAC: 0.005 to 200 Hz time seriesDC: averaged power levelLine of sight Tx/Rx system (transmit/receive)1 to 10 km<strong>RPG</strong>‐SCI‐<strong>MWSC</strong>‐TN01‐2012‐09 Page 2 / 2 www.radiometer‐physics.de<strong>Radiometer</strong> <strong>Physics</strong> GmbH +49 2225‐99981‐0Birkenmaarstrasse 10info@radiometer‐physics.de53340 Meckenheim, Germany 2012‐09‐24 radiometer‐support@radiometer‐physics.de
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