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Ultrasonic extensometer measures bolt preloadExtensometer using ultrasonic pulse reflections to measure elongations in tightened belts and studs is much more accurate than conventional torque wrenches in application of specified preload to bolts and other threaded fasteners.
Document ID
19780000271
Document Type
Other - NASA Tech Brief
Authors
Daniels, C. M., Jr. (Rockwell Intern. Corp.)
Date Acquired
August 9, 2013
Publication Date
October 1, 1978
Publication Information
Publication: NASA Tech Briefs
Volume: 3
Issue: 2
ISSN: 0145-319X
Subject Category
MACHINERY
Report/Patent Number
MFS-19337
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.