Two-dimensional straightness measurement using optical meter

Vekteris, Vladas; Jurevichius, Mindaugas; Strishka, Vytautas

doi:10.1117/1.3049908

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…The method adopts some equipment such as laser displacement sensor, capacitance sensor, and charge-coupled device (CCD) camera to obtain data information without touching the measured surface. For example, the diameter and roundness error measuring system was developed by Mekid and Vacharanukul [3] based on the corresponding relationship between displacement and light intensity; the cylindrical non-contact capacitance probe was used by Ma et al [4]; the deep-hole inner surface parameter comprehensive measurement device was designed by Akio et al [5], consisting of laser emitter, DC motor, measurement unit, and optical element for detecting posture; the adjustable five-dimensional measuring system was established by Ma et al [6]; the measuring device consisting of two high-resolution single-lens reflex cameras was proposed by Zatočilová et al [7]; additionally, the system designed by Jurevicius and Vekteris [8][9][10] was based on the phase difference coding of modulated optical signals emitted by two photodiodes. All of them are successful typical applications of non-contact mode in the field of shape error measurement and have been improved to varying degrees regarding measurement rationality and accuracy.…”

Section: Introductionmentioning

confidence: 99%

Research on multi-sensor measurement system and evaluation method for roundness and straightness errors of deep-hole parts

Song¹,

Wang²,

Liu³

et al. 2021

Preprint

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Precision deep-hole parts are widely used in various fields of industrial production and their machining quality has a great impact on fatigue limit, geometric accuracy, and stability of products. Since roundness and straightness errors are essential technical indexes to evaluate the machining quality of deep-hole parts, accurate measurement and effective evaluation of them are of great significance to ensure the performance of related products. A multi-sensor integrated device that can measure two kinds of shape errors simultaneously was developed based on laser displacement sensor, two-dimensional position-sensitive detector, angle sensor, and laser distance sensor. Aiming at the problem of roundness error evaluation, the solution process of the control points of the minimum zone circle was optimized by calculating the distance between points and searching according to the polygon removal rule. Besides, the rotating projection method was used to evaluate the straightness error effectively. Eventually, the effectiveness of the measuring device and the shape error evaluation method was verified by experimental research.

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Section: Introductionmentioning

confidence: 99%

Research on multi-sensor measurement system and evaluation method for roundness and straightness errors of deep-hole parts

Song¹,

Wang²,

Liu³

et al. 2021

Preprint

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“…Ehret et al [10] established two new scanning deflection flatness reference measurement systems. Moreover, optical measurement can be made using an optical axis or laser beam determined by an optical accessory as a linear reference [11], [12]. The method of sensor combined with the flat crystal can realize the surface straightness error profile reconstruction of the guide rail [13].…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Reconstructing Flatness Error Contour of Long Surface Based on a Laser Displacement Sensor

Zhong-wu

Zhao

2019

IEEE Access

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In order to solve the problem that the flatness error contour curve of the guideway mounting surface on machine tools can not be intuitive description, a novel method is proposed in this paper. The principle is to divide the measured surface with a certain length into several short surfaces with overlapping region, and the segmented surfaces are measured respectively, then the flatness error contours of the segmented surfaces can be obtained, finally, the segmented flatness error contours are spliced together to reconstruct the flatness error contour of the entire surface. On this basis, the detection instrument is designed, the detection principle is given, the benchmark plate is customized to identify the starting position and ending position of measurement, the reference surface and the measured surface are measured respectively in combination with the detection instrument and the benchmark plate. Then, an algorithm is developed to convert the distance difference between the reference surface and the measured surface into the flatness error contours of segmented surfaces. Next, using the geometric relationship between overlapping region of segmented flatness error contours, an algorithm is studied which can splice these segmented flatness error contours and reconstruct the flatness error contour of the entire surface. Meanwhile, mathematical models of the algorithms are established, and the measurement experiment is carried out. The results demonstrate that this method can reconstruct the flatness error contour of long surface accurately. INDEX TERMS Flatness detection, machine tool, detection instrument, flatness error contour reconstruction, contour splicing.

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“…Recently tribologists have called attention to liquid crystals as a new functional materials which can be used in friction systems owing to possibility of control of the physical properties by external action of temperature, pressure, electric field as well as surface asperities and roughness [1][2][3]. Previous works relating to tribological properties of liquid crystals have showed possibility of active control of the coefficient of friction and wear of the friction elements in both the hydrodynamic and boundary regimes, by introduction of such type substances into lubricant mixtures [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Tribochemical behaviour of the selected mesogenic additive in n-hexadecane

Molenda¹,

Makowska²

2006

Tribol Lett

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Tribochemical behaviour of the selected mesogenic compound (4-butylcyclohexanoic acid p-hexaoxyphenyl ester) was investigated by means of ball-on-disk machine at ambient and elevated temperatures. To selection of the thermal conditions of tribological tests DSC technique was used and to analyse tribochemical products layered on the wear tracks-SEM/EDS, FTIRM and XPS ones. Obtained results show that the mesogen dissolved in n-hexadecane is an effective antiwear additive which decreases temperature of the lubricant. This is favoured mainly by tribochemical processes.

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Two-dimensional straightness measurement using optical meter

Cited by 9 publications

References 3 publications

Research on multi-sensor measurement system and evaluation method for roundness and straightness errors of deep-hole parts

Research on multi-sensor measurement system and evaluation method for roundness and straightness errors of deep-hole parts

A Novel Method for Reconstructing Flatness Error Contour of Long Surface Based on a Laser Displacement Sensor

Tribochemical behaviour of the selected mesogenic additive in n-hexadecane

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