Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1986-01-29
1987-12-01
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
126425, G01J 120
Patent
active
047106182
ABSTRACT:
An airborne tracking sun photometer apparatus has a rotatable dome (14). An azimuth drive motor (32) is connected to rotate the dome (14). The dome (14) has an equatorial slot (36). A cylindrical housing (38) is pivotally mounted inside the dome (14) at the equatorial slot (36). A photometer (22) is mounted in the housing (38) to move in the equatorial slot (36) as the housing (38) pivots. The photometer (22) has an end facing outward from the slot (36) with an optical flat transparent window (62). An elevation drive motor (40) is connected to pivot the cylindrical housing (38). The rotatable dome (14) is mounted in bulkhead (18) of an aircraft to extend from the interior (16) of the aircraft. A sun sensor (50) causes the photometer to track the sun automatically. Alternatively, the photometer may be oriented manually (by voltages (117, 119)) or by computer (20).
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Matsumoto Yutaka
Mina Cesar
Russell Philip B.
van Ark William B.
Brekke Darrell G.
Manning John R.
Marchant Robert D.
Nelms David C.
The United States of America as represented by the Administrator
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