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UPPER AIR SIMULATOR ( UAS )

Installed at the NIMS(National Institute of Meteorological Sciences)

Humidity

UAS.JPG

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

캡처.JPG

R&D FOR IMPROVEMENT OF UPPER AIR OBSERVATION ACCURACY

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