MEASUREMENT METHOD AND METER OF LINEAR DISPLACEMENTS Russian patent published in 2003 - IPC

FIELD: measurement technology, measurement of linear displacements. SUBSTANCE: measurement raster is moved in advance with permanent speed, displacement is converted to optical signals, amplitudes of these signals are measured and reference dependencies of amplitudes of signals on value of linear displacement of raster are generated, reference dependencies are kept in re- programmable permanent storage. After this displacement of measurement raster is converted to optical signals, amplitudes of these signals are measured and their analog-to-digital conversion is carried out. Results of this conversion are used to compute value of linear displacement with utilization of reference dependencies described above. EFFECT: increased measurement accuracy, reduced labor input to manufacture of meter of linear displacement realizing this method. 2 cl, 4 dwg