Optics: measuring and testing – Photometers – Heat absorbing
Patent
1997-03-10
1998-04-14
Rosenberger, Richard A.
Optics: measuring and testing
Photometers
Heat absorbing
206217, D7507, B65D 7700
Patent
active
057399034
ABSTRACT:
A vessel (20) is fabricated with a separate evacuated hollow volume (26) in the side wall (22) and bottom (24) of the vessel (20) that allows for the insertion of a paddlewheel radiometer in the evacuated space. The bottom (24) and side wall (22) of the vessel (20) are made so that selected portions are transparent thus the paddlewheel radiometer assembly (28) portion of the radiometer can receive light energy and be observed to spin when the vessel (20) is exposed to a light source. The assembly (28) rotates on a hub located along the central axis of the vessel (20) in the center of the of the evacuated hollow volume (26). The rotating assembly (28) includes perpendicular vanes (30) that radiate outward along the radius of the vessel (20). Each of the vanes (30) is blackened on one side and mirrored or white on the other side. The assembly (28) is constructed so that it balances horizontally at its center hub. The vanes (30) are arranged so that they each have their black light absorbing surface (32) facing the same way when the assembly (28) rotates. With very low gas pressure in the evacuated hollow volume (26), the radiant energy from an external light or heat source, will cause the vane assembly (28) to turn due to the different thermal properties of the black and mirrored or white surfaces of the vanes (30) and the differing rebounding energies of the rare gas molecules in the evacuated hollow volume (26) imparting a torque to the vanes (30) which spins the radiometer assembly (28) at a substantial rate.
REFERENCES:
patent: 182172 (1876-09-01), Crookes
patent: 2102164 (1937-12-01), Payson et al.
patent: 3077286 (1963-02-01), Cornelius
patent: 3742174 (1973-06-01), Harnden, Jr.
patent: 4112707 (1978-09-01), Joseph
patent: 4315430 (1982-02-01), Szonntagh
patent: 4410805 (1983-10-01), Berley
patent: 4726688 (1988-02-01), Ruel
patent: 4926037 (1990-05-01), Martin-Lopez
patent: 5029700 (1991-07-01), Chen
patent: 5553735 (1996-09-01), Kimura
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