Optical device for straightness measurement

Vekteris, Vladas; Jurevičius, Mindaugas; Turla, Vytautas

doi:10.1007/s00340-015-6219-5

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…Chen developed a system consisting of a novel one-dimension probe and a ball array to quickly measure the geometric error of a linear axis from the ball center deviations in three dimensions [ 12 ]. Vladas Vekteris researched the non-contact optical device for a two-dimensional straightness measurement of a machine and presented the measuring principle and measuring transversal displacements of machine parts in two directions during their linear longitudinal motion [ 13 ]. Wang presented a simple and light-weight two-dimensional straightness measurement configuration based on optical knife-edge sensing and analyzed the physical model of the configuration and performed simulations.…”

Section: Introductionmentioning

confidence: 99%

Splicing Measurement and Compensation of Straightness Errors for Ultra-Precision Guideways

Zhou,

Zheng,

et al. 2023

Micromachines

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The straightness error of guideways is one of the key indicators of an ultra-precision machine, which plays an important role in the machining accuracy of a workpiece. In order to measure the straightness error of a long-distance ultra-precision guideway accurately, a splicing measurement for the straightness error of a guideway using a high-precision flat mirror and displacement sensor was proposed in this paper, and the data splicing processing algorithm based on coordinate transformation was studied. Then, comparative experiments on a splicing measurement and direct measurement of the straightness error were carried out on a hydrostatic guideway grinder. The maximum difference between the two measurements was 0.3 μm, which was far less than the straightness error of 5.8 μm. The experiment demonstrated the correctness of the proposed splicing measurement method and data processing algorithm. To suppress the influence of the straightness error on machining accuracy, a straightness error compensation algorithm based on error rotation transformation and vertical axis position correction was proposed, and the grinding experiment of a plane optics with a size of 1400 mm × 500 mm was carried out. Without error compensation grinding, the flatness error of the element was 7.54 μm. After error compensation grinding, the flatness error was significantly reduced to 2.98 μm, which was less than the straightness errors of the guideways. These results demonstrated that the straightness error of the grinding machine had been well suppressed.

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Section: Introductionmentioning

confidence: 99%

Splicing Measurement and Compensation of Straightness Errors for Ultra-Precision Guideways

Zhou,

Zheng,

et al. 2023

Micromachines

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show abstract

“…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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FBG-based 3D shape sensor based on spun multi-core fibre for continuum surgical robots

et al. 2023

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Optical device for straightness measurement

Cited by 9 publications

References 8 publications

Splicing Measurement and Compensation of Straightness Errors for Ultra-Precision Guideways

Splicing Measurement and Compensation of Straightness Errors for Ultra-Precision Guideways

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

FBG-based 3D shape sensor based on spun multi-core fibre for continuum surgical robots

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