RU2009112729A - METHOD OF DISTANCE MEASUREMENT AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD OF DISTANCE MEASUREMENT AND DEVICE FOR ITS IMPLEMENTATION Download PDFInfo
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- RU2009112729A RU2009112729A RU2009112729/28A RU2009112729A RU2009112729A RU 2009112729 A RU2009112729 A RU 2009112729A RU 2009112729/28 A RU2009112729/28 A RU 2009112729/28A RU 2009112729 A RU2009112729 A RU 2009112729A RU 2009112729 A RU2009112729 A RU 2009112729A
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- RU
- Russia
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- radiation
- fiber
- reflected
- probe
- photodetector
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- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
1. Способ измерения расстояния, в котором направляют на объект зондирующее излучение, генерируемое источником излучения, регистрируют отраженное от объекта излучение фотоприемными средствами и определяют расстояние до объекта L по формуле !! где b - база триангуляции, а φ - угол триангуляции между осью зондирующего излучения и направлением на фотоприемник отраженного от объекта излучения, отличающийся тем, что до регистрации отраженного излучения фотоприемными средствами осуществляют его задержку в световоде за счет отражения излучения от внутренней поверхности световода, соотносят базу триангуляции b к входной апертуре световода и определяют угол триангуляции φ по времени Δt распространения в световоде отраженного от объекта излучения, для чего ориентируют нормаль n к плоскости входной апертуры световода относительно направления зондирующего излучения под углом β в пределах от 0 до 90°, устанавливают соотношение между углом триангуляции φ и углом падения отраженного от объекта излучения на входную апертуру световода αпад с помощью выражения ! ! где знак «+» выбирается при отсчете угла β против часовой стрелки, а знак «-» выбирается при отсчете угла β по часовой стрелки относительно направления зондирующего излучения, измеряют время распространения в световоде Δt отраженного от объекта излучения и рассчитывают расстояние L по формуле ! ! где Δt - время распространения отраженного от объекта излучения в световоде, lсв - длина световода, ncв - показатель преломления среды, по которой распространяется излучение в световоде, nв - показатель преломления воздуха, с - скорость распространения света в вакууме, а 1. The method of measuring the distance in which the probing radiation generated by the radiation source is sent to the object, the radiation reflected from the object is recorded by photodetector means and the distance to the object L is determined by the formula !! where b is the base of triangulation, and φ is the angle of triangulation between the axis of the probe radiation and the direction of the radiation reflected from the object to the photodetector, characterized in that before registering the reflected radiation with photodetector means, it is delayed in the fiber by reflecting radiation from the inner surface of the fiber, correlate the base triangulation b to the input aperture of the fiber and determine the angle of triangulation φ by time Δt of propagation of the radiation reflected from the object in the fiber, for which the normal n is oriented to the plane the bones of the input aperture of the fiber relative to the direction of the probe radiation at an angle β in the range from 0 to 90 °, establish the relationship between the angle of triangulation φ and the angle of incidence of the radiation reflected from the object at the input aperture of the fiber α fall using the expression! ! where the “+” sign is selected when counting the angle β counterclockwise, and the “-” sign is selected when counting the angle β clockwise relative to the direction of the probing radiation, the propagation time Δt of the radiation reflected from the object is measured and the distance L is calculated by the formula! ! where Δt is the propagation time of the radiation reflected from the object in the fiber, lcb is the length of the fiber, ncb is the refractive index of the medium through which the radiation propagates in the fiber, nc is the refractive index of air, c is the speed of light propagation in vacuum, and
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2009112729/28A RU2408842C1 (en) | 2009-04-06 | 2009-04-06 | Distance measuring device (versions) and device for realising said method (versions) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009112729/28A RU2408842C1 (en) | 2009-04-06 | 2009-04-06 | Distance measuring device (versions) and device for realising said method (versions) |
Publications (2)
Publication Number | Publication Date |
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RU2009112729A true RU2009112729A (en) | 2010-10-20 |
RU2408842C1 RU2408842C1 (en) | 2011-01-10 |
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Application Number | Title | Priority Date | Filing Date |
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RU2009112729/28A RU2408842C1 (en) | 2009-04-06 | 2009-04-06 | Distance measuring device (versions) and device for realising said method (versions) |
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RU (1) | RU2408842C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2471203C1 (en) * | 2011-10-04 | 2012-12-27 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт "Полюс" им. М.Ф. Стельмаха" | Laser distance meter |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2506538C1 (en) * | 2012-07-04 | 2014-02-10 | Общество с ограниченной ответственностью "Си Тех" | Laser device for measurements with higher accuracy |
US20230236369A1 (en) * | 2020-06-19 | 2023-07-27 | Lumentum Operations Llc | System and method for vertically aligning optical fiber to photonic wafers |
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2009
- 2009-04-06 RU RU2009112729/28A patent/RU2408842C1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2471203C1 (en) * | 2011-10-04 | 2012-12-27 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт "Полюс" им. М.Ф. Стельмаха" | Laser distance meter |
Also Published As
Publication number | Publication date |
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RU2408842C1 (en) | 2011-01-10 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20120407 |