Laser Locator for Detection and Recognition of Small Objects

Kalugin, A. I.; Зарипов, М. Р.; Antonov, E. A.

doi:10.22213/2410-9304-2020-1-9-14

Cited by 2 publications

(2 citation statements)

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“…Лазерное сканирование широко применяется для решения самых разных задач в промышленности, архитектуре, медицине, геодезии, транспорте [1][2][3][4]. Ключевой проблемой лазерного сканирования является последовательное зондирование сканируемого пространства с заданными угловыми размерами импульсным лазерным излучением.…”

Section: Introductionunclassified

Calculation of Parameters of Prism Deflector for Laser Scanner

Gusarov

Kalugin

Alyes

et al. 2023

Prib. metody izmer.

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The prism deflector which is a multifaceted prism with reflective facets is the most common scanning element that allows to quickly fill a wide scanning area with laser radiation pulses along one coordinate. The parameters of a prismatic deflector are related to the characteristics of the laser radiation of the scanned area parameters and of the deflector position, and are also limited by various factors, such as safety requirements or scanning time. The aim of this work was to analyze the relationship between the external operating conditions of a laser scanning system and the internal design parameters of a prism deflector.A variant of calculating of laser pulses frequency by the number of spots and their overlap coefficient is considered. A method for calculating of a prism deflector characteristics based on external parameters, such as the angle of incidence of radiation to the facet and the width of the Gaussian beam with dimensions that are safe for а human eye is proposed. Рrismatic deflectors parameters are proposed depending on the number of reflecting facets. Dependence of a deflector size on the angle of radiation incidence to the reflecting face is shown.When designing a prismatic deflector of a laser scanner used to fill a certain scanning area with the required angular size σ by varying such parameters as the number of faces m and the feed angle α it is possible to achieve optimal deflector characteristics and scanning mode for the task.

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Section: Introductionunclassified

Calculation of Parameters of Prism Deflector for Laser Scanner

Gusarov

Kalugin

Alyes

et al. 2023

Prib. metody izmer.

Self Cite

View full text Add to dashboard Cite

show abstract

“…настоящее время лазерное сканирование нашло широкое применение в различных областях деятельности человека -геодезии, промышленности, архитектуре, медицине, транспорте [1][2][3][4][5]. Суть лазерного сканирования заключается в последовательном заполнении изучаемой области с заданными угловыми размерами импульсами лазерного излучения и получения отклика от объектов, нахо-дящихся в этой области.…”

Section: Introductionunclassified

Method for Calculating the Scanning Unit of a Laser Scanner and Optimizing Its Overall Dimensions

Gusarov¹,

Kalugin²,

Antonov³

et al. 2022

Vestnik IzhGTU imeni M.T. Kalashnikova

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A prism deflector, which is a multifaceted prism with reflective edges, is the most common scanning element that allows fast filling of a wide scanning area with laser radiation pulses along one coordinate. To carry out the movement of laser radiation along the second coordinate of the region under study a second scanning element, for example, a flat oscillating mirror, should be used. The overall dimensions of the scanning elements and the scanning unit as a whole depend on the free parameters that are set at the system development stage. The paper proposes a mathematical model designed for automated calculation of a scanning unit consisting of a prism deflector, a fixed flat mirror, an oscillating flat mirror, and a laser exit window. The described model makes it possible to calculate the overall parameters of system optical elements and the layout of the block based on the required characteristics of the scanned area and free parameters, which include the angle of radiation supply to the face of the prism deflector, the tilt angle of the fixed mirror, and one of the coordinates of the laser output window position relatively to the center of the prism deflector. In this case, the first two mentioned parameters are of the greatest interest from the point of view of minimizing and optimizing the overall dimensions of the scanning elements and the scanning unit as a whole. Based on the above model, an analysis of the dependence of the overall dimensions of the scanning elements and the scanning unit as a whole was carried out. The paper describes the layout features of the scanning unit. Recommendations for choosing the value of such free parameters as the angle of radiation supply to the face of the prism deflector and the angle of inclination of a flat fixed mirror are given. The obtained results can be used in the development of automated systems for the design of laser scanning devices.

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Laser Locator for Detection and Recognition of Small Objects

Cited by 2 publications

References 0 publications

Calculation of Parameters of Prism Deflector for Laser Scanner

Calculation of Parameters of Prism Deflector for Laser Scanner

Method for Calculating the Scanning Unit of a Laser Scanner and Optimizing Its Overall Dimensions

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