Shape and deformation measurement system by combining fringe projection and digital image correlation

Abstract.A test system to measure the deformation of the transmission tower based on binocular vision method is introduced in this work. The test system can achieve the accurate monitoring of the transmission tower deformation, and provide deformation data for the reliability analysis of the transmission tower provides both in static and dynamic measurement. The test system is successfully applied in a tower type test.

show abstract

“…In this work, the Zero-Normalized Sum of Squared Difference, see Eq. (1), was selected as the matching intensity function [7].…”

Section: D Matching Based On Dicmentioning

confidence: 99%

Deformation Test System of Transmission Tower Based on Binocular Vision Method

Jia¹,

Zhang²,

Feng

et al. 2017

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…(1) (see e.g. [20,21]). Our RFP system in the present configuration has a sensitivity of k = 0.76 mm/rad and a nominal height-resolution of 0.05 mm.…”

Section: Radial Fringe Projection (Rfp)mentioning

confidence: 99%

Full-surface deformation measurement of anisotropic tissues under indentation

Genovese

Montes

Martı́nez

et al. 2015

Medical Engineering & Physics

View full text Add to dashboard Cite

“…The studies of the photogrammetry make significant progress in the speed of image processing and measurement accuracy [19,20]. In the meantime, this technique is widely applied to identify the displacement and strain of materials and structures [21]. However, DIC random speckled patterns are usually applied to a structure for the DIC approach, which are difficult to remove after the testing and lead to long duration measurement images in different time series [22].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Identification for Unbalanced Mass of Rotor Systems in Operation

et al. 2018

View full text Add to dashboard Cite

Unbalanced mass identification is important for rotor systems. Current methods normally use sensors, which only detect vibration in two-dimensional (2D) space. Actually, the rotor systems vibrate in three-dimensional directions. In this paper, a non-contact method is developed to identify unbalanced mass of rotor systems in 3D space. A stereo video system with a pair of synchronized high-speed cameras is established and a feature point is employed to replace traditional contact transducer for measurement. Checkerboard target on a vibration table is used to implement dynamic calibration. The proposed method is compared with eddy current method and laser displacement method. The comparison experiments verify the detection ability of the unbalanced mass for the proposed method. Overall, the proposed method can provide more information than 2D detection methods, which has the great potential for fault diagnosis of rotating machinery.

show abstract

Shape and deformation measurement system by combining fringe projection and digital image correlation

Cited by 50 publications

References 17 publications

Deformation Test System of Transmission Tower Based on Binocular Vision Method

Deformation Test System of Transmission Tower Based on Binocular Vision Method

Full-surface deformation measurement of anisotropic tissues under indentation

Three-Dimensional Identification for Unbalanced Mass of Rotor Systems in Operation

Contact Info

Product

Resources

About