RU95110100A - Optoelectronic method of increase of accuracy of test of shape of object - Google Patents

Optoelectronic method of increase of accuracy of test of shape of object

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Publication number
RU95110100A
RU95110100A RU95110100/28A RU95110100A RU95110100A RU 95110100 A RU95110100 A RU 95110100A RU 95110100/28 A RU95110100/28 A RU 95110100/28A RU 95110100 A RU95110100 A RU 95110100A RU 95110100 A RU95110100 A RU 95110100A
Authority
RU
Russia
Prior art keywords
contaminant
test
thickness
accuracy
radiation
Prior art date
Application number
RU95110100/28A
Other languages
Russian (ru)
Other versions
RU2098752C1 (en
Inventor
В.И. Телешевский
В.В. Васильев
Original Assignee
Московский государственный технологический университет "СТАНКИН"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Московский государственный технологический университет "СТАНКИН" filed Critical Московский государственный технологический университет "СТАНКИН"
Priority to RU95110100A priority Critical patent/RU2098752C1/en
Publication of RU95110100A publication Critical patent/RU95110100A/en
Application granted granted Critical
Publication of RU2098752C1 publication Critical patent/RU2098752C1/en

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  • Length Measuring Devices By Optical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

FIELD: measurement technology, instrumentation, precision machine engineering. SUBSTANCE: invention is intended for investigation of method making it possible to enhanced accuracy of test of shape of object and to expand functional capabilities of optoelectronic idea of testing. Proposed optoelectronic method consists in usage of radiation with duration of wave on which absorption of radiation by known contaminant fouling surface of tested article is maximal. Using maximal values of signal amplitudes one makes correction for result of test by addition of thickness of layer of contaminant to result of test. value of thickness of contaminant is found by standard which surface is standard of shape and carries layers of contaminant of known thickness. Spectral characteristics of contaminant can be determined in advance for each particular case of test since brand of used lubricating-cooling fluid - most frequently used contaminant is known by conditions of technological process. Increase of accuracy thus is ensured by input of corrections on basic of spectral characteristics known beforehand. presence of film of contaminant on surface of tested object causes absorption of radiation and change of type of function of measurement conversion of fibre-optical pickup. This change is corrected by correction equal to layer of contaminant. EFFECT: increased accuracy of test of shape of object, expanded functional capabilities of optoelectronic aids of testing. 3 cl, 4 dwg

Claims (1)

Изобретение относится к измерительной технике и может быть использовано в приборостроении и точном машиностроении для контроля с повышенной точностью объектов сложной формы. Цель: изыскание способа, позволяющего повысить точность контроля формы объекта и расширить функциональные возможности оптоэлектронных средств контроля. Способ заключается в том, что используют излучение с длиной волны, на которой поглощение излучения известным веществом, загрязняющим поверхность контролируемого объекта максимально, исходя из полученных максимальных значений амплитуд сигналов, вводят поправку на результат контроля путем прибавления к результату контроля толщины слоя загрязняющего вещества, значение толщины слоя загрязняющего вещества определяют по эталону, поверхность которого является эталоном формы и содержит слои загрязняющего вещества известной толщины. Спектральные характеристики загрязняющих веществ могут быть определены заранее для каждого конкретного случая контроля, поскольку по условиям технологического процесса марка применяемой смазочно-охлаждающей жидкости - наиболее распространенного "загрязнителя" известна. Повышение точности, таким образом, обеспечивается введением поправок на основе заранее известных спектральных характеристик. Наличие пленки загрязняющего вещества на поверхности контролируемого объекта вызывает поглощение излучения и изменение вида функции измерительного преобразования волоконно-оптического датчика. Это измерение корректируется поправкой, равной толщине слоя загрязняющего вещества.The invention relates to measuring equipment and can be used in instrumentation and precision engineering for control with increased accuracy of complex objects. Purpose: finding a method to improve the accuracy of control of the shape of the object and expand the functionality of optoelectronic controls. The method consists in the use of radiation with a wavelength at which the absorption of radiation by a known substance polluting the surface of the controlled object as much as possible, based on the obtained maximum values of the signal amplitudes, adjusts for the control result by adding to the result of the control the thickness of the layer of the pollutant, the thickness value a pollutant layer is determined by a standard, the surface of which is a mold standard and contains layers of a pollutant of known thickness. The spectral characteristics of pollutants can be determined in advance for each specific control case, because according to the process conditions, the brand of cutting fluid used - the most common "pollutant" is known. Improving accuracy is thus ensured by introducing corrections based on previously known spectral characteristics. The presence of a film of contaminant on the surface of the controlled object causes radiation absorption and a change in the form of the measurement conversion function of the fiber optic sensor. This measurement is corrected by a correction equal to the thickness of the contaminant layer.
RU95110100A 1995-06-14 1995-06-14 Optoelectronic method of check of form of object RU2098752C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95110100A RU2098752C1 (en) 1995-06-14 1995-06-14 Optoelectronic method of check of form of object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95110100A RU2098752C1 (en) 1995-06-14 1995-06-14 Optoelectronic method of check of form of object

Publications (2)

Publication Number Publication Date
RU95110100A true RU95110100A (en) 1997-05-10
RU2098752C1 RU2098752C1 (en) 1997-12-10

Family

ID=20168957

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95110100A RU2098752C1 (en) 1995-06-14 1995-06-14 Optoelectronic method of check of form of object

Country Status (1)

Country Link
RU (1) RU2098752C1 (en)

Also Published As

Publication number Publication date
RU2098752C1 (en) 1997-12-10

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