SU151192A1 - Method for photographic summation of two-dimensional Fourier series - Google Patents
Method for photographic summation of two-dimensional Fourier seriesInfo
- Publication number
- SU151192A1 SU151192A1 SU696997A SU696997A SU151192A1 SU 151192 A1 SU151192 A1 SU 151192A1 SU 696997 A SU696997 A SU 696997A SU 696997 A SU696997 A SU 696997A SU 151192 A1 SU151192 A1 SU 151192A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- summation
- photographic
- fourier series
- dimensional fourier
- wave
- Prior art date
Links
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- Analysing Materials By The Use Of Radiation (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
Известные способы фотографического суммировани двумерных р дов Фурье при рентгеноструктурном анализе, основанные на свойстве фотоэмульсии накопл ть отдельные, последовательные световые воздействи и давать при про влении почернение, -пропорциональное сумме экспозиций, сложны и малоудобны.The known methods of photographic summation of two-dimensional Fourier series by X-ray analysis, based on the property of a photo emulsion to accumulate separate, consecutive light effects and give blackening, proportional to the sum of exposures, are difficult and not convenient.
Быстрый и удобный сиитез разнообразных по параметрам синусоидальных волн и их фотографическое суммирование в предлагаемом способе достигнуто получением треугольной во-лны с помощью двух наложенных линейчатых растров и получением синусоидального распределени с помощью анизотролного светового потока,The quick and convenient sietez of sine waves of various parameters and their photographic summation in the proposed method is achieved by obtaining a triangular wave using two superimposed ruled rasters and obtaining a sinusoidal distribution using an anisotrol luminous flux,
На фиг. 1 приведено схематическое изображение образовани синусоидальной волны на первом этапе; на фиг. 2 - на втором.FIG. Figure 1 shows a schematic representation of the formation of a sine wave at the first stage; in fig. 2 - on the second.
Образование синусоидальной волны производ т двум этапами. На первом этапе образуетс треугольна волна на двух линейчатых растрах. На втором этапе треугольна волна преобразуетс в синусоидальную с помощью просвечивани растров при экспонировании специальным источником света, не показанным на чертеже. Характерной особенностью этого источника вл етс то, что вдоль фронта волны световой поток очень рассе н, а в направлении перпендикул рном свет строго направлен. При этом изменение периода волны осуществл ют вращением только одного растра, а другой используетс дл изменени фазы волны путем небольшого поперечного сдвига.The formation of a sine wave is carried out in two stages. At the first stage, a triangular wave is formed on two rasters. At the second stage, the triangular wave is converted into a sinusoidal wave by means of raster scanning during exposure with a special light source, not shown in the drawing. A characteristic feature of this source is that the light flux is very scattered along the wave front, and the light is strictly directed in the direction perpendicular. In this case, the change in the wave period is carried out by rotating only one raster, and the other is used to change the phase of the wave by a slight transverse shift.
Предмет изобретени Subject invention
Способ фотографического суммировани двумерных р дов Фурье при рентгеноструктурном анализе, отличающийс тем, что, с целью ускорени и упрощени суммировани , образование синусоидальной . волны производ т двум этапами: получением треугольной волны с помощью двух наложенных линейчатых растров и получением синусоидального распределени С помощью анизотропного светового потока, при этом изменение периода волны производ т вращением одного растра , а изменение фазы волны - поперечным сдвигом другого растра.A method of photographic summing of two-dimensional Fourier series in X-ray diffraction analysis, characterized in that, in order to speed up and simplify the summation, the formation of a sinusoidal one. the waves are produced in two stages: obtaining a triangular wave with the help of two superimposed line rasters and obtaining a sinusoidal distribution With the help of an anisotropic light flux, the wave period is changed by rotating one raster, and the wave phase is changed by a transverse shift of the other raster.
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU696997K SU151193A1 (en) | 1961-02-09 | 1961-02-09 | Photosummator |
| SU696997A SU151192A1 (en) | 1961-02-09 | 1961-02-09 | Method for photographic summation of two-dimensional Fourier series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU696997A SU151192A1 (en) | 1961-02-09 | 1961-02-09 | Method for photographic summation of two-dimensional Fourier series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU151192A1 true SU151192A1 (en) | 1961-11-30 |
Family
ID=48305992
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU696997K SU151193A1 (en) | 1961-02-09 | 1961-02-09 | Photosummator |
| SU696997A SU151192A1 (en) | 1961-02-09 | 1961-02-09 | Method for photographic summation of two-dimensional Fourier series |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU696997K SU151193A1 (en) | 1961-02-09 | 1961-02-09 | Photosummator |
Country Status (1)
| Country | Link |
|---|---|
| SU (2) | SU151193A1 (en) |
-
1961
- 1961-02-09 SU SU696997K patent/SU151193A1/en active
- 1961-02-09 SU SU696997A patent/SU151192A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SU151193A1 (en) | 1961-11-30 |
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