Electronic circuit for incremental translators

Electronic measurement devices includes two distinct sections: electrical translator for displaces and electronic unit which process the signals from translator.Electric translator for displaces is realized by a circular ruler with equally distanced slots. To translate mechanical displace in electrical signal, the ruler is equipped with one or two optoelectronic reading heads. At least two reading heads must be used in order to determine the direction of moving object. The main problems that must be solved by the electronic block are the precision of measurement, the elimination of loss of impulses generated by the reading heads and to reduce the influence of parasite signals in measurement operation. The electronic circuit presented in this study guarantee the small mechanic displaces between +9,999 mm and -9,999 mm, with a resolution of 0,04 mm. The measured maximum frequency in condition of a 40 cm/s moving object is 10 kHz.