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Measuring Perimeters of Large Round Objects

Authors :
Dickinson, C. B
Source :
NASA Tech Briefs. 9(3)
Publication Year :
1986
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1986.

Abstract

Perimeters of large objects of approximately circular cross section determined indirectly through radius measurements by any of several proposed methods. Methods reduce errors introduced by wheel moved around perimeter and counting wheel turns: Surface irregularities and variations in friction and contact pressure seriously affect accuracy and repeatability of wheel measurements. Measurement concept applicable to such other large bodies as aircraft fuselages and generator rotors.

Subjects

Subjects :
Mechanics

Details

Language :
English
ISSN :
0145319X
Volume :
9
Issue :
3
Database :
NASA Technical Reports
Journal :
NASA Tech Briefs
Publication Type :
Report
Accession number :
edsnas.19850000365
Document Type :
Report