Device, using specular black cavity heater, temperature sensors, and electronics and electrodeposited cavity/thermal impedance structures, can achieve + or - 0.1 percent long-term absolute uncertainty at solar constant level. Dual-cavity configuration helps decrease sensitivity for heat-sink temperature drift.
Active-cavity radiometer/pyroheliometer
NASA Tech Briefs ; 2 , 2
1977-09-01
Miscellaneous
No indication
English
Active cavity radiometer type IV
Tema Archive | 1979
|NTRS | 1969
|Primary Absolute Cavity Radiometer
NTIS | 1969
|Improving Radiometer-Cavity Absorptance
NTRS | 1982
|Primary absolute cavity radiometer
NTRS | 1969
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