UPPER AIR SIMULATOR ( UAS )
Installed at the NIMS(National Institute of Meteorological Sciences)
Humidity
Dual Quartz Crystal Microbalance (DQM)
04. Ultra low humidity at stratosphere
Humidity generator at low pressure and temperature
(1 kPa ~ 100 kPa, @-70 ℃)
Measurement system using chilled-mirror hygrometer
03. Humidity standard at low Pressure
02. Development of Radiosonde
Dual Thermometer Radiosonde
Solar correction equation for DTR
Temperature, Humidity, Pressure, Solar irradiance and Wind ventilation
Measurement system in RF mode
01. Development of Upper Air Simulator
Temperature
SPECIFICATIONS
Temperature
Reference thermometer
Liquid bath
Climate Chamber
Maker : GHM(PT100 Air thermometer)
Maker : Kambic
Maker : Tenney
Range : -80℃ ~ 60℃
Range : -75℃ ~ 30℃
Range : -75℃ ~ 80℃
Calibration uncertainty : 50 mK
Temperature stability : ±5 mk
Stability : ±0.4 ℃
Humidity
Dry air generator
Maker : 1st stage(silica Gel + Molecule seive) + 2nd stage(Michell, PSD4-HPO)
Drying level : -99 ℃fp, 15, nmol/mol after 2nd stage
Liquid bath
Low frost point generator
Maker : Kambic
Maker : KRISS
Range : -75℃ ~ 30℃
Range : (-90 ~ 30)℃fp
Temperature stability : ±5 mk
Stability : ±0.05℃
Calibration uncertainty : ±(0.2~0.05)℃
Air pressure
Vacuum pump
Type : Rotary pump
Pumping capacity : (0~300)㎥/h
pressure range : (0.5 ~ 1000) mbar
Vacuum gauge
Maker : INFICON
Range : (0~1333)mbar
Calibration uncertainty : 0.48 Pa
Wind velocity
pressure gauge
Maker : Mensor
Range :(0~7)bar
Calibration uncertainty : 0.0006%
Thermometer
Maker : GHM(PT100 Air thermometer)
Range : (0~50)℃
Calibration uncertainty : 0.05℃
Sonic nozzle
Maker : KRISS
Flow range : (3~569)L/min
Calibration uncertainty : 0.18%
Nozzle diameter : (0.28, 0.40, 0.80, 1.12, 3.20)mm
Solar irradiance
Solar simulator
Maker : Newport
Lamp : 1 kW Xe Arc lamp (DC)
Range : (0~1500) W/m2
Calibration uncertainty : 2%
Optic path : Liquid crystal guide(L 1m, D 5mm)+Lens
Spatial uniformity : ±5% @ 40mm in diameter
R&D FOR IMPROVEMENT OF UPPER AIR OBSERVATION ACCURACY
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