title: Measurement of 3-D displacement: sandwich holography and regulated path length interferometry.
abstract: An analysis of sandwich and regulated path length interferometries is used to determine 3-D displacement. The combination of the two techniques provides a reliable means for unambiguous determination of displacement. To demonstrate the efficiency of the combination displacement measurement is made of object surface points on a steel beam. The accuracy of sandwich hologram interferometry is replicable for a series of measurements and does not fall below the value needed in industrial measurements.
authors.forename: Z
authors.initials: Z
authors.lastname: Füzessy
authors.forename: N
authors.initials: N
authors.lastname: Abramson