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Saez Landete, José ; Salcedo Sanz, Sancho ; Rosa Zurera, Manuel ; Alonso Fernández, José ; Bernabeu Martínez, Eusebio | IEEE (Institute of Electrical and Electronics Engineers) | 2007-07In grating measurement systems, a reference signal is needed to achieve an absolute measurement of the position. The zero reference signals are normally obtained illuminating two identical superimposed zero reference codes (ZRCs) and registering[...]texto impreso
Saez Landete, José ; Salcedo Sanz, Sancho ; Rosa Zurera, Manuel ; Alonso Fernández, José ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 2005-10-15A new technique for the generation of optical reference signals with optimal properties is presented. In grating measurement systems a reference signal is needed to achieve an absolute measurement of the position. The optical signal is the autoc[...]
