Method and Device Based on Multiscan for Measuring the Geometric Parameters of Objects
| Autor: | Milan Sága, Michael Yurievich Alies, Yuriy Konstantinovich Shelkovnikov, Ivan Kuric, Evgeny Yurievich Shelkovnikov, Aleksandr Ivanovich Korshunov, Anastasia Alekseevna Meteleva, Milan Vaško |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Computer science Bioengineering 02 engineering and technology lcsh:Chemical technology 01 natural sciences Signal law.invention lcsh:Chemistry 010309 optics 020901 industrial engineering & automation Optics law 0103 physical sciences Chemical Engineering (miscellaneous) lcsh:TP1-1185 Sensitivity (control systems) multiscan discrete–continuous structure Vernier scale business.industry Process Chemistry and Technology video signal Vernier method Linearity computer.file_format Photodiode Pulse (physics) lcsh:QD1-999 measurement Raster graphics business computer photodiode cell Voltage |
| Zdroj: | Processes, Vol 9, Iss 24, p 24 (2021) Processes Volume 9 Issue 1 |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr9010024 |
| Popis: | The article deals with the issues of improving the accuracy of measurements of the geometric parameters of objects by optoelectronic systems, based on a television multiscan. A mathematical model of a multiscan with scanistor activation is developed, expressions for its integral output current and video signal are obtained, and the mechanism of their formation is investigated. An expression for the video signal is obtained that reflects the dual nature of the discrete&ndash continuous multiscan structure: the video signal can have a discrete (pulse) or analog (continuous) form, depending on the step voltage between the photodiode cells of the multiscan. A Vernier discrete&ndash analog method for measuring the parameters of the light zone on a multiscan is proposed, in which in order to increase the accuracy of the measurements, the location of the video pulse is determined relative to the neighboring reference pulses of a rigid geometric raster due to the slope of the discrete structure of the multiscan. It is established that the Vernier method enables one to make precision measurements of the coordinates, dimensions, and movements of the light zones by an overlay on a video raster of reference pulses from cells&mdash a uniform sequence of Vernier pulses with a recurrence interval, followed by determining the number of the Vernier pulse that coincides with the raster pulse. An optoelectronic device based on a discrete&ndash continuous multiscan, implemented on the basis of the proposed Vernier method of measuring the coordinates of the light zones, which has a high sensitivity to movement, is characteristic of continuous structures, and has increased stability and linearity of the coordinate characteristics typical for discrete structures, is developed. |
| Databáze: | OpenAIRE |
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