andsince the lampblack may rub off, it is better to use platinumvanes, about 0.01 mm thick, blackened electrolytically and thensmoked. In addition to having the radiometer enclosed in a heavy metalcase to shield it from temperature changes, it is advisable tocover the instrument with a metal… … jm. u w I cbm I
Measurements and use of instruments · Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes
Internet Archive · NIST Research Library · Public Domain Mark 1.0. Free to use for anything.
