Eppley Total Ultraviolet Radiometer (TUVR) The
Eppley Total Ultraviolet Radiometer
(TUVR) is a detector for the measurement of solar UVA radiation (0.295 to
0.385 µm). The instrument utilizes a hermetically sealed selenium barrier-layer
cell that is protected by a quartz window. A specially designed teflon provides
for a good cosine response. An encapsulated narrow band pass (interference)
filter limits the spectral response of the photocell to the wavelength interval
0.295 to 0.385 µm.
Specifications
Sensitivity: 150
µV/Wm-2.
Impedance: approx. 1500 Ohms.
Response Time: milliseconds.
Temperature Dependence: ±0.3%
per °C over ambient temperature range -40 to +40°C.
Linearity: ±2% from 0 to 70
Wm-2.
Cosine Correction: ±3.5%
from normalization 0-70° zenith angle.