Extensometer 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.
Ultrasonic extensometer measures bolt preload
NASA Tech Briefs ; 3 , 2
1978-10-01
Miscellaneous
No indication
English
Recommended Wheel Tie Bolt Preload Procedure
SAE Technical Papers | 2007
Recommended Wheel Tie Bolt Preload Procedure
SAE Technical Papers | 2020
Repeated Torque Cycles Reduce Bolt Preload
NTRS | 1993
|