Electro-optical extensometer containing optical and electronic components measures displacement in simulated turbine blade thermally cycled into and out of hot-gas stream. Innovation is useful in obtaining accurate strain histories for components subjected to severe thermal environments and other environmental changes.
Noncontact strain measurement
NASA Tech Briefs ; 4 , 2
1979-12-01
Miscellaneous
No indication
English
Laser Extensometer for Noncontact Measurement of Strain
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