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Modified sine bar device measures small angles with high accuracyModified sine bar device measures small angles with enough accuracy to calibrate precision optical autocollimators. The sine bar is a massive bar of steel supported by two cylindrical rods at one end and one at the other.
Document ID
19680000322
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Thekaekara, M.
Date Acquired
August 4, 2013
Publication Date
August 1, 1968
Subject Category
Physical Sciences
Report/Patent Number
GSC-438
Report Number: GSC-438
Accession Number
68B10322
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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