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Scanning photometer system automatically determines atmospheric layer heightTwo photometers, placed a given distance apart, determine the height of nonuniform luminous layers in a synchronous manner. Photometer outputs are correlated by a simple analog correlation computer to automatically give the luminous layer height. This system is used to determine visibility ceilings at airports.
Document ID
19660000169
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Wolff, M.
Date Acquired
August 3, 2013
Publication Date
April 1, 1966
Subject Category
Electronic Components And Circuits
Report/Patent Number
MSC-245
Accession Number
66B10170
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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