Mr. Alexey Malyshev Profile

Alexey Malyshev

at ITMO Univ

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Proceedings Article | 29 April 2016 Paper

Autocollimation sensor for measuring the deformations of objects and modules containing environmentally hazardous substances

Igor Konyakhin, Alexey Malishev, Van Phong Hoang

Proceedings Volume 9899, 98991Y (2016) https://doi.org/10.1117/12.2225070

KEYWORDS: 3D image processing, Prisms, Mirrors, Collimation, Objectives, Refraction

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The article is based on some researching considering the three-axis angle measuring autocollimation sensor. Such a sensor allows measuring the deformation of large constructed objects while receiving the information about all three angular freedom degrees. The feasibility of a special tetrahedral prism reflector, with two modes of operation is described and proved. The ability to synthesize such a reflector is proved mathematically; including the description of it’s both modes functioning. All algorithms were taken from the mathematical model of such a reflector functioning, which was created while the researching. First mode allows measuring the roll angle with high accuracy, and the second mode allows measuring the collimation angles, using different types of light reflected beams. So there are two ways to measure collimation angles: rough and precise. The algorithm for rough way of collimation angles measuring is quite similar to the roll algorithm measuring and used for the adjustment and for the initial setting the autocollimation sensor. The precise algorithm is used for the prime measuring in a complex with roll angle measuring to get full information of three-dimensional deformation of the object. The experimental stand was researched to confirm the correctness of all algorithms of the reflector and the sensor functionality in the whole. The technical characteristics of the experimental setup are presented.

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