RU2017143319A - The method of determining deformations based on speckle photography - Google Patents

The method of determining deformations based on speckle photography Download PDF

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Publication number
RU2017143319A
RU2017143319A RU2017143319A RU2017143319A RU2017143319A RU 2017143319 A RU2017143319 A RU 2017143319A RU 2017143319 A RU2017143319 A RU 2017143319A RU 2017143319 A RU2017143319 A RU 2017143319A RU 2017143319 A RU2017143319 A RU 2017143319A
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RU
Russia
Prior art keywords
speckle
registering
coherent light
photograph
scanning
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RU2017143319A
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Russian (ru)
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RU2017143319A3 (en
RU2691765C2 (en
Inventor
Михаил Николаевич Осипов
Роман Николаевич Сергеев
Original Assignee
федеральное государственное автономное образовательное учреждение высшего образования "Самарский национальный исследовательский университет имени академика С.П. Королёва"
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Application filed by федеральное государственное автономное образовательное учреждение высшего образования "Самарский национальный исследовательский университет имени академика С.П. Королёва" filed Critical федеральное государственное автономное образовательное учреждение высшего образования "Самарский национальный исследовательский университет имени академика С.П. Королёва"
Priority to RU2017143319A priority Critical patent/RU2691765C2/en
Publication of RU2017143319A3 publication Critical patent/RU2017143319A3/ru
Publication of RU2017143319A publication Critical patent/RU2017143319A/en
Application granted granted Critical
Publication of RU2691765C2 publication Critical patent/RU2691765C2/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
    • G01B11/162—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means by speckle- or shearing interferometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02094—Speckle interferometers, i.e. for detecting changes in speckle pattern
    • G01B9/02095—Speckle interferometers, i.e. for detecting changes in speckle pattern detecting deformation from original shape

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (1)

Способ определения деформаций объекта, заключающийся в том, что объект освещают когерентным светом, регистрируют спекл-фотографию объекта до и после его деформирования на одну фотопластинку, сканируют полученную двухэкспозиционную спекл-фотографию двумя узкими пучками когерентного света, регистрируют муаровую картину, по которой определяют деформацию объекта, отличающийся тем, что в плоскости входной апертуры оптической системы для регистрации спекл-фотографий располагают кольцевую апертурную диафрагму, имеющую вид двух концентрических окружностей с радиусами b и δb, где 0,9≤δ<1, регистрацию спекл-фотографий объекта до и после его деформирования проводят одновременно на две фотопластинки, плотно совмещенные эмульсией друг к другу, а сканирование полученной двухэкспозиционной спекл-фотографии осуществляют одним узким пучком когерентного света.The method for determining object deformations, which consists in illuminating an object with coherent light, registering a speckle photograph of the object before and after deforming it onto one photographic plate, scanning the obtained two-exposure speckle photograph with two narrow beams of coherent light, registering a moire pattern that determines the deformation of the object , characterized in that in the plane of the entrance aperture of the optical system for registering speckle photographs have an annular aperture diaphragm, having the form of two concentrates Circles with radii b and δb, where 0.9≤δ <1, the registration of the speckle photographs of the object before and after its deformation is carried out simultaneously on two photographic plates tightly aligned by emulsion to each other, and the scanning of the obtained two-exposure speckle photograph is carried out by one narrow beam of coherent light.
RU2017143319A 2017-12-11 2017-12-11 Method for determination of deformations based on speckle-photography RU2691765C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2017143319A RU2691765C2 (en) 2017-12-11 2017-12-11 Method for determination of deformations based on speckle-photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2017143319A RU2691765C2 (en) 2017-12-11 2017-12-11 Method for determination of deformations based on speckle-photography

Publications (3)

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RU2017143319A3 RU2017143319A3 (en) 2019-06-11
RU2017143319A true RU2017143319A (en) 2019-06-11
RU2691765C2 RU2691765C2 (en) 2019-06-18

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Family Applications (1)

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RU2017143319A RU2691765C2 (en) 2017-12-11 2017-12-11 Method for determination of deformations based on speckle-photography

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113295106A (en) * 2021-05-26 2021-08-24 清华大学 Double-optical comb speckle interferometry system and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1247649A1 (en) * 1983-05-24 1986-07-30 Куйбышевский государственный университет Method and apparatus for determining strains of object
SU1499110A1 (en) * 1987-11-30 1989-08-07 Челябинский Политехнический Институт Им.Ленинского Комсомола Method of recording interferograms when checking the change of condition of an object
SU1705701A1 (en) * 1990-10-25 1992-01-15 Предприятие П/Я Г-4725 Method of interference determination of deformation
US5426498A (en) * 1994-04-04 1995-06-20 University Of New Mexico Method and apparatus for real-time speckle interferometry for strain or displacement of an object surface
EP1215465A1 (en) * 2000-11-29 2002-06-19 Steinbichler Optotechnik Gmbh Method and apparatus for measuring the deformation of objects

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113295106A (en) * 2021-05-26 2021-08-24 清华大学 Double-optical comb speckle interferometry system and method
CN113295106B (en) * 2021-05-26 2022-07-15 清华大学 Double-optical comb speckle interferometry system and method

Also Published As

Publication number Publication date
RU2017143319A3 (en) 2019-06-11
RU2691765C2 (en) 2019-06-18

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20191212

NF4A Reinstatement of patent

Effective date: 20210713