Diameter Calculation in Contactless Three-Axis Measuring Devices

Fedorov, E. M.; Koba, Alexander

doi:10.1051/matecconf/20167901082

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…Znane są także metody oparte na pomiarze cieni rzucanych przez obiekt oświetlony za pomocą rozbieżnego strumienia świetlnego. Zaletą tych metod jest brak elementów optycznych, takich jak soczewka czy lustra [8]. W technice komercyjnej znane są różnego rodzaju maszyny i urządzenia pomiarowe służące do pomiarów przedmiotów osiowosymetrycznych, zwłaszcza o przekroju okrągłym.…”

Section: Abstract: Volume Measurement Laser Sensorunclassified

Stand for measuring the volume of the blank using a laser sensor

Pelic¹,

Bartkowiak²,

Pabiszczak³

et al. 2018

Mechanik

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The aim of the article is to present a method of measuring the volume of a blank using a laser sensor and a complete measuring stand. In the analyzed part of the manufacturing process of water fittings, the brass rod is cut on blanks of a given weight using CNC sawing machine. Due to the applied flashless forging technology, high cutting precision is required, understood as a relative mass tolerance of the blank of less than 0.1%. In this case, it becomes important to measure the geometry of the rod to calculate its volume – to correct the length of the blank. The natural way to calculate the volume of rotational solids with complex shapes is to determine the definite integral of the curve describing the outer surface of the solid. However, in the case of solids with geometrical errors this function may vary with the angle of rotation of the solid. In the case of real systems, in which the measurement results are a discrete sequence of numbers, it is natural to choose numerical integration. The paper presents the use of a laser sensor moved around the axis and along the rod to measure its volume and the concept of a complete measuring stand.

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Section: Abstract: Volume Measurement Laser Sensorunclassified

Stand for measuring the volume of the blank using a laser sensor

Pelic¹,

Bartkowiak²,

Pabiszczak³

et al. 2018

Mechanik

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“…A large number of researchers at home and abroad have conducted a lot of research on this. Evgeny Fedorov and Alexander Koba et al of the Tomsk University of Technology proposed a triaxial coordinate system to measure the cable diameter and improve the ellipticity measurement method, using 120° nonrectangular coordinate system, measure the position of the center of the circle projection in the corresponding photodetector, combined with the displacement of the center of the three-axis coordinate system origin, and obtain the outer diameter [10] by analytical geometry method. The method used is novel, and the corresponding mathematical derivation idea is clear.…”

Section: Introductionmentioning

confidence: 99%

Offset compensation cable external diameter measurement system

Wang

Song

2023

J. Phys.: Conf. Ser.

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In the process of industrial production cables and pipes, the precise measurement of the produced product line diameter parameters is very important. In the present paper, we propose an offset compensation diameter measurement system based on analytical geometry and spatial coordinate transformation. The right-angle coordinate system is established in the corresponding planes of the two sets of charge coupling devices and the corresponding laser light source, and the center coordinates of the measured cable are obtained by the analytical geometric method, and the spatial coordinate transformation is used to connect the two coordinate systems to build the offset compensation measurement system. In the actual test (taking θ=45° as an example), considering the overall measurement results of the cylinder standard bar, the overall absolute error is between ± 4 μm without offset, and the relative error is 0~0.05%; and the relative average error (deviation angle is more than 0° and less than 35°) can be maintained at less than 0.7%. The above results demonstrate the feasibility of accurate measurement of this offset-compensated measurement system.

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“…To increase the economic efficiency of the cable company, it is expedient to monitor wire capacitance not only during output testing [5][6][7], but during in-process testing [8] as well. Inprocess testing is required to ensure continuous monitoring of the capacitance along the entire length of the product and to make prompt adjustments to the production process when the capacitance deviates from its nominal value.…”

Section: Introductionmentioning

confidence: 99%

Detection of Insulation Defects in Automated In-Process Testing of Electric Wire during its Extrusion

Goldshtein

Vavilova

Rumkin

et al. 2019

MSF

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The paper describes the electro-capacitive method for monitoring wire capacitance, which is implemented using the CAP-10 device, employed for in-process testing of the single core electric wire capacitance. Focus is made on the operating principle of the CAP-10 device. The possibility of using the CAP-10 device for detecting local defects in wire insulation is proved. Insulation defects such as foreign inclusions in the form of copper shavings, air cavities inside insulation and those at the core–insulation boundary are modeled. The impact of the defect geometric parameters on the wire capacitance measured during in-process testing is investigated through numerical simulation. Mathematical simulation results are validated through the physical model using the CAP-10 device.

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Diameter Calculation in Contactless Three-Axis Measuring Devices

Cited by 5 publications

References 13 publications

Stand for measuring the volume of the blank using a laser sensor

Stand for measuring the volume of the blank using a laser sensor

Offset compensation cable external diameter measurement system

Detection of Insulation Defects in Automated In-Process Testing of Electric Wire during its Extrusion

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