The main disadvantage of encoders currently used to measure the object motion, is the required mechanical coupling with the observed object, that significantly limits its scope of application. The paper presents theoretical results of the contactless (without mechanical contact with the observed object) encoder based on the Doppler effect. The block diagram and the analysis are presented for the proposed contactless encoder.
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Encoders. Servotekhnika [in Russian]; www.servotechnica.ru/catalog/type/index.pl?id=118 (accessed June 24, 2023).
The Doppler Effect for Electromagnetic Waves [in Russian], Yaroslavl State Pedagogical University named after K. D. Ushinsky, https://moodle.yspu.org/pluginfile.php/2178/mod_scorm/content/164/node8.html (accessed June 11, 2023).
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Karlova, G.F., Avdochenko, B.I., Yegunov, M.S. et al. Contactless Encoder Based on the Doppler Effect. Russ Phys J 66, 689–694 (2023). https://doi.org/10.1007/s11182-023-02994-1
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DOI: https://doi.org/10.1007/s11182-023-02994-1