A high-accuracy roundness measurement for cylindrical components by a morphological filter considering eccentricity, probe offset, tip head radius and tilt error

Sun, Chuanzhi; Lei, Wang; Tan, Jiubin; Zhao, Bo; Zhou, Tong; Kuang, Ye Chow

doi:10.1088/0957-0233/27/8/085008

Cited by 14 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many researchers [8,26,27] have explored many methods to remove the installation eccentricity error of the artifact, the eccentricity error can be eliminated by removing the first harmonic, thus greatly improving the measurement accuracy [8,28]. Comparing figures 9 and 10, after removing the first harmonic from the eccentricity of 10 µm to 0.1 µm, the error reaches the sub-nanometer.…”

Section: Effect Of the Eccentricity Errormentioning

confidence: 99%

A virtual parallel two-point roundness error measurement system

Chai¹,

Yin²,

Yao³

et al. 2021

Meas. Sci. Technol.

View full text Add to dashboard Cite

As a typical artifact in machining, the roundness of shaft artifacts is an important tolerance standard. How to measure with high precision in ultra-precision machining is a difficult point. At present, the three-probe method is the most widely used method to measure spindle rotation error and artifact roundness error, which has the advantage of on-machine measurement, but the three-probe method has the critical problem of harmonic suppression. To completely separate the spindle error when measuring the roundness of the artifact, a new virtual parallel two-point measurement system is proposed in this paper. The probe is fixed on the flexible hinge stage, which is driven by a voice coil motor so that the measurement function of two probes can be realized only by using a single probe. Detailed numerical analysis and simulation analysis have been carried out to verify that the method can completely separate the spindle error in theory. Finally, the accuracy of the measurement system is tested through experiments. The new method results are compared with the single-point scanning method without error separation and the high-precision roundness instrument Talyrond 585LT. The comparison results show that the new method can separate the rotation error of the spindle and can improve the roundness measurement accuracy.

show abstract

Section: Effect Of the Eccentricity Errormentioning

confidence: 99%

A virtual parallel two-point roundness error measurement system

Chai¹,

Yin²,

Yao³

et al. 2021

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The single-probe method is another simple and direct method with a displacement probe and high-precision rotary platform [6,7]. Except for the accuracy of the probe, the rotation error of the rotary platform should be as small as possible to ensure that all measured displacements begin from the rotation axis.…”

Section: Introductionmentioning

confidence: 99%

Three-Probe Error Separation with Chromatic Confocal Sensors for Roundness Measurement

Bai

Wang

et al. 2021

Nanomanuf Metrol

View full text Add to dashboard Cite

In this study, three-probe error separation was developed with three chromatic confocal displacement sensors for roundness measurement. Here, the harmonic suppression is discussed first to set suitable orientation angles among three sensors. Monte Carlo simulation is utilized to test the error separation and optimize the orientation angles and off-axial distance. The experimental setup is established using chromatic confocal sensors with a precise rotary platform. The experimental results show that the measured roundness with an orientation-angle combination of (0°, 90.1°, and 178.6°) is much better than that of another nonoptimal selection (0°, 90.4°, and 177.4°). The roundness error is only 0.7% between the proposed measurement system and an expensive ultraprecision roundness meter. Furthermore, it is proven that the eccentricity distance should be decreased as small as possible to improve the measurement accuracy. In sum, this paper proposes a feasible method for roundness measurement with reliable simulations, easily integrated sensors, and an ordinary precision rotary platform.

show abstract

“…Caja et al [22] described a method for evaluating the geometrical parameters, such as the radius and roundness error, of a partial arc for any circular feature based on digital images taken using optical measuring machines. To achieve high-accuracy roundness measurement, a four-parameter roundness measurement model and a morphological filter for data processing were studied [23]. Chiabert et al [24] compared the performance of a probabilistic method with those of conventional least-squares methods in estimating different roundness errors along with the associated uncertainty.…”

Section: Introductionmentioning

confidence: 99%

Improved evaluation of minimum zone roundness by integrating bidirectional search of unequal probability and offset mechanisms

Huang¹,

Chao²,

Jiang³

et al. 2019

Meas. Sci. Technol.

View full text Add to dashboard Cite

This paper reports an improved method that integrates a bidirectional search of unequal probability and an offset movement mechanism (BSOM) to evaluate the minimum zone roundness (MZR) with high speed and accuracy. The centre and roundness of a least-squares circle are first solved to construct an original search zone, and the initial candidate points of the minimum zone circle centre are configured. A bidirectional search of unequal probability that considers the subsequent points either toward or away from the current best candidate point is designed to enhance the global search ability. Considering the candidate points at different located positions have different effects on convergence characteristics, the search area is divided into two sections based on the average distance between the current best candidate point and the other candidate points, and different forward and backward search probabilities are configured. An adaptive offset movement mechanism is integrated to generate new candidate points for the next generation. The effectiveness of the proposed method is experimentally verified using datasets from previous studies. The configurations of BSOM parameters and influence of the distribution and number of data points on evaluation accuracy and efficiency are analyzed. The experimental examples and comparison results demonstrate the excellent convergence performance of the proposed method, which reaches the global optimum faster than previous methods. Across six different datasets, only 0.0095 s–0.0282 s is required when the average distance D ⩽ 1.0 × 10−7 mm as the iteration convergence condition, and the standard deviation of the MZR is less than 5.3777 × 10−9 mm, while the search parameters are set as P1 = 0.6, P2 = 0.95, and b = 0.6. The proposed approach is expected to be suitable for on-line evaluation of roundness error.

show abstract

A high-accuracy roundness measurement for cylindrical components by a morphological filter considering eccentricity, probe offset, tip head radius and tilt error

Cited by 14 publications

References 16 publications

A virtual parallel two-point roundness error measurement system

A virtual parallel two-point roundness error measurement system

Three-Probe Error Separation with Chromatic Confocal Sensors for Roundness Measurement

Improved evaluation of minimum zone roundness by integrating bidirectional search of unequal probability and offset mechanisms

Contact Info

Product

Resources

About