Middleton SolarThe company'sUVR1Series precision filter radiation meter, used for measuring total solar ultraviolet radiation.UVR1-TandUVR1-ASuitable for air pollution monitoring,UVR1-BSuitable for biological and human erythema monitoring.
UVR1-A The impact of changes in ozone layer concentration on reaching the ground through the atmosphere is minimal, and the vast majority can reach the ground;UVR1-T is completely absorbed by the ozone layer and cannot reach the ground; UV-B is greatly affected by changes in ozone layer concentration before reaching the ground. AlthoughUVR1-The energy occupied by B radiation accounts for only 0.2% of the total solar radiation, but it is a key band that affects the chemical composition and processes of the atmosphere.UVR1-A andUVR1-B together determine the intensity of the ultraviolet index on the ground, but precise measurement of UV-A and UV-B poses great challenges, requiring detection equipment with good cosine response and a response function that accurately matches the ultraviolet band spectrum.
brand | AustraliaMiddleton |
model: | UVR1-T, UVR1-A, and UVR1-B |
Spectral response range |
UVR1-T:280-400nm UVR1-A:315-400nm UVR1-B:280-315nm |
measuring range |
UV-T:0-75 W/㎡ UV-A:0-70W/㎡ UV-B:04 W/㎡ 0-10MED/hr |
Center wavelength, half power bandwidth |
UVR1-T:340 ±3.5nm;70 ±3.5nm UVR1-A:355 ±3.5nm;40 ±3.5nm UVR1-B:307 ±0.9nm;7.5 ±1.5nm |
Sensitivity (typical) |
UVR1-T & UVR1-A:25 mV/W/㎡ UVR1-B:350 mV/W/㎡ |
Detector type, effective area | UVSilicon photodiode+amplifier,25 mm2 |
Response time (90%) | 0.5s |
Non stability(annually) | < ?3% |
Nonlinear | < 1% |
Directional error(cosine+azimuth) | < ± 2% (0-85°Zenith angle) |
Temperature error | Negligible (heating turned on) |
Dark offset(50℃Environmental temperature changes) |
±1.5mV (30℃&40℃heater) ±2.5mV (50℃heater) |
Working environment temperature(Heater on; shut) | -30—45℃(open);-20—60℃(shut) |
Thermal Control: Selection of Heater Placement Point Stable positioning point |
30℃;40℃(default); 50℃< 2.5℃(50℃environmental change) |
Power supply demand(Heater on) |
5.5—14.5VDCSingle power supply maximum12W, typical2W |
Stable current consumption | Heater+detector turned off:< 1mA |
Temperature signal(detector/filter); Accuracy | 10mV/℃(For example:0.4V = 40℃);±1℃ |
Top cover |
UVR1-AQuartz glass UVR1-T & UVR1-B: fused silica |
Cable | 6m |
install | Chassis CenterM10Hole,65mm P.C.DAttach a pair on topM4hole |
weight | 1.1kg (Excluding cables) |