New relationship of displacement signal at quadrant photodiode: Control signal analysis and simulation of a laser tracker |
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| Authors: | Žarko P. Barbarić Stojadin M. Manojlović Boban P. Bondžulić Milenko S. Andrić Srđan T. Mitrović |
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| Affiliation: | 1. State University of Novi Pazar, Vuka Karad?i?a bb, 36000 Novi Pazar, Serbia;2. University of Defence in Belgrade, Military Academy, Pavla Juriši?a Šturma 33, 11000 Belgrade, Serbia |
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| Abstract: | New relationship of displacement signal using opposite sectors on a quadrant photodiode is derived. Standard and new displacement signals are analyzed in details. Through MATLAB® laser tracking simulation models, based on common and suggested approaches, detailed analysis is performed, and it is shown that better results for the new relationship signal processing are obtained. Within new relationship of displacement signal, the sensitivity of the system to the displacement of the spot increases and, hence, provides better accuracy in positioning up to 30%. |
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| Keywords: | Position sensitive detector Quadrant photodiode Displacement signal Laser tracker simulation |
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