4-Component Net Radiometer

4-Component Net Radiometer

Model:FS7H
Brand:fengtu
4-Component Net Radiometer directly measures the daily long and short wave radiation and calculates the net radiation....

1.4-Component Net Radiometer product overview

4-Component Net Radiometer directly measures the daily long and short wave radiation and calculates the net radiation.In meteorological applications, infrared radiation or long-wave radiation refers to electromagnetic radiation with a wavelength greater than 3.0 μm.Longwave radiation is physically related to temperature and is emitted by all objects on Earth.The spectral range of the sun's shortwave radiation is 300nm ~ 3μm (accounting for 99.5% of the total solar radiation energy).

Fengtu's FT-FS7H four-component net radiation sensor directly measures daily long-wave radiation and short-wave radiation and calculates the net radiation amount.For meteorological observations of atmospheric radiation (radiation emitted by clouds/water vapor, carbon dioxide, etc.) and the net radiation exchange between the Earth and the atmosphere.Net total radiation (shortwave + longwave) is usually measured by 4 net pyranometers or a single net pyranometer (its detector can respond to the entire wavelength range).Pyranometers measure downward emitted longwave radiation using a detector with a hemisphere pointing upward.The net longwave radiation and the downward emitted radiation from the earth-atmosphere system can be calculated.It has been widely used in the fields of meteorology/photovoltaic/horticulture/agriculture and industry.

2.Product features of 4-Component Net Radiometer

1.Comply with WMO World Meteorological Organization specifications (CIMO Guide)

2.Strong sensitivity to infrared radiation with a wavelength of 4~50µm

3.The heating effect of silicone cover has small error.

4.Cosine response error is small

5.Reduce environmental impact

6.Has better stability

3.Technical indicators of 4-Component Net Radiometer

Technical parametersTechnical description
total radiation
grade standardsFIRST CLASS
Time response (95%)13s
Thermal radiation zero offset±10W/m2
Temperature change zero point offset±3W/m2
nonlinear±1.5%
instability±1%
directional response±18 W/m2
Spectral error±3%
Temperature response (-10~40℃)3%
tilt error±1%
Spectral response285~3000nm
Daily mining accuracy<5%
resolution1W/m2
Sensitivity7~14μV/W•m-2
Signal output0~20mV
earth radiation
Spectral response400~50000nm
Response time (sec)95%<18s
Non-stability (change/year)<2%
temperature coefficient≤±1%(-20℃~+50℃)
perspective180°
Sensitivity(µV/W/m²)2~150uV/Wm-2
Impedance(Ω)20~140
Window heating offset<4W/m2 (solar radiation 1000W/m2)
Signal range-500~+500 W/m²
Signal output-20~0mV
General parameters
Number of channels4 channels of mV, 2 channels of 4-wire platinum resistors
temperature sensorWire type platinum resistor (JIS standard: c-1604-1989 category)
working temperature-40~+70℃
weight9kg
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