National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Active Angular Alignment of Gauge Blocks in Double-Ended Interferometers
Buchta, Zdeněk
This paper presents a method implemented in a system for automatic contactless calibration of gauge blocks designed at ISI ASCR. The system combines low-coherence interferometry and laser interferometry, where the first identifies the gauge block sides position and the second one measures the gauge block length itself. A crucial part of the system is the algorithm for gauge block alignment to the measuring beam which is able to compensate the gauge block lateral and longitudinal tilt up to 0.141 mrad. The algorithm is also important for the gauge block position monitoring during its length measurement.
Laser interferometry with optical fibers and fiber Bragg gratings
Mikel, Břetislav
Optical fibers and fiber Bragg grating can improve using of standard laser interferometry methods in industry applications. Especially fiber Bragg gratings can improve frequency parameters of laser diodes in the laser interferometers. These parameters increase resolution and measurement range of the laser interferometer.

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