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Samples in periodicals archive:
Using Optodyne's Laser Doppler displacement meter (LDDM), the sequential step diagonal or vector measurement, 12 sets of data can be collected by the four sequential step diagonal measurements.
A laser Doppler displacement meter, using a, single-aperture laser head and a flat-mirror as target, is used when the vector method is applied.
Using these volumetric errors, machines can be compensated volumetrically To experimentally verify the theory extensive measurements and testing over a period of six months were performed on a 3axis horizontal machining center using a Laser Doppler Displacement Meter (LDDM) model MCV-500 linear calibration system with a diagonal steering mirror and a 3 "x4" flat mirror target.