SU506756A1 - Method for contactless measurement of the thickness of a transparent sheet material during production - Google Patents
Method for contactless measurement of the thickness of a transparent sheet material during productionInfo
- Publication number
- SU506756A1 SU506756A1 SU1850773A SU1850773A SU506756A1 SU 506756 A1 SU506756 A1 SU 506756A1 SU 1850773 A SU1850773 A SU 1850773A SU 1850773 A SU1850773 A SU 1850773A SU 506756 A1 SU506756 A1 SU 506756A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thickness
- sheet material
- transparent sheet
- light
- contactless measurement
- Prior art date
Links
Description
ретно от р да к р ду. Цилиндрическа линза 5 проецирует световой поток на исследуемый материал 7, например, стекло. Преломленный в стекле световой попадает на фотоприемник 8, установленный неподвижно. Ширина щели диафрагмы 9 такова, что на фотоприемник 8 попадает свет только от одного из р дов 1волокон и, следовательно, модулированный только одной из возможных частот, соответствующей определенной толщине стекла. Сигнал фотоприемника, частота которого равна частоте модул ции, падающего на него света, поступает в частотный дискриминатор 10, выходной сигнал которого, пропорциональный толщине стекла, поступает на вторичный прибор 11, осуществл ющий индикацию результата измерени .Retno from r d to r d d. The cylindrical lens 5 projects a light flux onto the material under study 7, for example glass. The light refracted in the glass falls on the photodetector 8, which is fixedly mounted. The width of the slit of the diaphragm 9 is such that light from only one of the rows of fibers and, therefore, modulated by only one of the possible frequencies corresponding to a certain glass thickness, strikes the photodetector 8. The photodetector signal, whose frequency is equal to the modulation frequency of the light incident on it, enters the frequency discriminator 10, the output signal of which is proportional to the thickness of the glass enters the secondary device 11, which displays the measurement result.
При изменении толщины листового стекла, например, при увеличении ее, изображение выходного торца волоконно-оптического преобразовател 2, получаемое в плоскости фотоприемника 8, смещаетс и на фотоприемник попадает свет от другого р да волокон, модулированный больщей частотой. Изменение частоты сигнала, пропорциональное изменению толщины, регистрируетс вторичным прибором 11, отградуированным в единицах толщины .When the thickness of the sheet glass changes, for example, when it is increased, the image of the output end of the fiber optic converter 2, obtained in the plane of the photodetector 8, is shifted and light from another fiber row, modulated at a higher frequency, hits the photoreceiver. A change in the signal frequency, proportional to the change in thickness, is recorded by the secondary device 11, calibrated in units of thickness.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1850773A SU506756A1 (en) | 1972-11-27 | 1972-11-27 | Method for contactless measurement of the thickness of a transparent sheet material during production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1850773A SU506756A1 (en) | 1972-11-27 | 1972-11-27 | Method for contactless measurement of the thickness of a transparent sheet material during production |
Publications (1)
Publication Number | Publication Date |
---|---|
SU506756A1 true SU506756A1 (en) | 1976-03-15 |
Family
ID=20533280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1850773A SU506756A1 (en) | 1972-11-27 | 1972-11-27 | Method for contactless measurement of the thickness of a transparent sheet material during production |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU506756A1 (en) |
-
1972
- 1972-11-27 SU SU1850773A patent/SU506756A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3947129A (en) | Apparatus for contactless measuring of the dimensions of objects | |
ES440060A1 (en) | Opto-electronic focus detection system | |
GB942227A (en) | Energy beam scanning systems | |
US4226538A (en) | Device for detecting irregularities in a moving sheet material | |
SE7612568L (en) | ROW DETECTION DEVICE FOR MATERIAL PATCH FOR DETECTION OF THE ERROR FRAME | |
SU506756A1 (en) | Method for contactless measurement of the thickness of a transparent sheet material during production | |
US3652165A (en) | Relative back focus monitoring method and apparatus | |
SE7708731L (en) | METHOD AND DEVICE FOR AUTOMATIC DETECTION AND VALUATION OF OPTICAL CRACK MARKINGS ON THE SURFACE OF THE WORKPIECES | |
GB1250605A (en) | ||
GB1246426A (en) | A method of measuring a dimension of an object | |
SU420887A1 (en) | BRANDER | |
SU495541A1 (en) | Contactless level gauge | |
US3564265A (en) | Apparatus for detecting and locating streaks on moving webs in the production of photographic papers and films | |
SU372429A1 (en) | Method for measuring dimensions of products | |
SU399723A1 (en) | PHOTOELECTRIC METHOD OF MEASURING THE THICKNESS OF PLATES FROM A TRANSPARENT L1ATERIAL | |
SU706694A1 (en) | Photoelectronic automatic collimator | |
SU1714346A1 (en) | Linear displacement interference measuring instrument | |
GB1519323A (en) | Device for measuring the width of a strip | |
SU1425734A1 (en) | Apparatus for detecting color-contrast objects against variable-brightness background | |
SU1012037A1 (en) | Optical vibration meter | |
SU603842A1 (en) | Photoelectric meter of semiconductor plate deelection | |
SU512449A1 (en) | Micro Lens Auto Focus Device | |
JPS5720603A (en) | Detector for plate width using laser | |
SU656385A1 (en) | Method and device for measuring angular deviations of light beam | |
SU1578553A1 (en) | Method of measuring focal distance of lens |