Evaluation of displacement derivatives by direct manipulation of interferogramsFunded under: JRC-MEASTEST 1C
Optical interferometric techniques are useful for full-field evaluations of displacements. A measurement of stresses that arise in the inspected object related to deformation, can be obtained from the partial derivative of the displacement. Maps of displacement derivatives are retrieved by direct manipulation of interferograms obtained with the phase-shifting method. The advantages of this method are the short processing time required and the elimination of unwrapping procedures and prior displacement evaluations.
Bibliographic Reference: Paper presented: INTERFEROMETRY 94, Varsavia (PL), May 16-20, 1994
Availability: Available from (1) as Paper EN 38298 ORA
Record Number: 199510429 / Last updated on: 1995-04-11
Original language: en
Available languages: en