NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Two-Dimensional Vernier ScaleModified vernier scale gives accurate two-dimensional coordinates from maps, drawings, or cathode-ray-tube displays. Movable circular overlay rests on fixed rectangular-grid overlay. Pitch of circles nine-tenths that of grid and, for greatest accuracy, radii of circles large compared with pitch of grid. Scale enables user to interpolate between finest divisions of regularly spaced rule simply by observing which mark on auxiliary vernier rule aligns with mark on primary rule.
Document ID
19920000034
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Juday, Richard D.
(NASA Lyndon B. Johnson Space Center, Houston, TX.)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 1
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MSC-21700
Accession Number
92B10034
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available