Výsledky vyhledávání - "何小元 He Xiaoyuan"

Three-dimensional shape measurement of objects with discontinuities by dual-frequency color fringe projection

Autor: 何小元 He Xiaoyuan, 杨福俊 Yang Fujun, 戴美玲 Dai Meiling

Publikováno v: Optics and Precision Engineering. 21:7-12

To reduce the projection fringes in three dimensional profile measurement by traditional phase shift method and to improve the measuring speed,a dual-frequency and 4-step phase-shifting color fringe profilometry is proposed to measure the 3-D shapes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd6e95be8f85a83a15466b0f7f8ce709
https://doi.org/10.3788/ope.20132101.0007

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Application of Digital Image Correlation on Surface Deformation Measurement of Chip on Board Packaging Structure

Autor: 陈凡秀 Chen Fanxiu, 何小元 He Xiaoyuan

Publikováno v: ACTA PHOTONICA SINICA. 39:2036-2039

Aiming at the thermal mismatch caused by different Coefficients of Thermal Expansion(CTE)of each material in Chip on Board(COB),Digital Image Correlation(DIC)is used to measure the thermomechanical coupling effect in COB packaging structures,and effe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::361d9ff0226bd542a09dcfb7ebe27f4f
https://doi.org/10.3788/gzxb20103911.2036

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