Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jieming Zhao"'
Publikováno v:
Applied Sciences, Vol 13, Iss 20, p 11430 (2023)
To address the complexity of small or unique reconstruction distances in digital holography, we propose an inverse cross-correlation-based algorithm for the digital holographic imaging of multiplanar objects with a large depth of field. In this metho
Externí odkaz:
https://doaj.org/article/0cd2274132bd437b86ebaade8b53fe5c
Publikováno v:
Photonics, Vol 8, Iss 7, p 271 (2021)
The traditional microscopic speckle interferometer has limited applications in engineering due to its small field of view. In this paper, we propose a large-field microscopic speckle interferometer which embeds two doublet lens groups in the improved
Externí odkaz:
https://doaj.org/article/a836b04fde5c45b9bb3f62b2452426cc
Publikováno v:
Applied Sciences, Vol 11, Iss 11, p 5251 (2021)
A micro-device vibration measurement method based on microscopic speckle interferometry combined with orthogonal phase is presented. This method utilizes the approximate linear distribution characteristics of orthogonal points (points satisfying the
Externí odkaz:
https://doaj.org/article/c7ce18191a3441019ade63e76a0dfc4d
Publikováno v:
Applied Sciences, Vol 10, Iss 23, p 8460 (2020)
At present, most wavefront sensing methods analyze the wavefront aberration from light intensity images taken in dark environments. However, in general conditions, these methods are limited due to the interference of various external light sources. I
Externí odkaz:
https://doaj.org/article/fbb542cb95dc4d49a792952a874445c9
Publikováno v:
Applied Sciences, Vol 9, Iss 12, p 2554 (2019)
This paper presents improved digital shearing speckle pattern interferometry based on Rochon Prism. The advantage of this method is that it avoids the shadow noise caused by transmission light, which improves the shearography accuracy. By reducing th
Externí odkaz:
https://doaj.org/article/3374853a73a242c089ca64d71b48a86a
Publikováno v:
Journal of Modern Optics. 68:489-495
With the rapid development of micro electro mechanical systems (MEMS), the high-precision measurement technology applied to MEMS devices becomes increasingly important. Traditional micro scale meas...
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 70:1-9
Traditional thermal stress measurement methods usually assume that the stress is generated only in one direction and cannot measure multidimensional stress components in real time. To realize the real-time and full-field measurement of multiple compo
Publikováno v:
Measurement. 210:112548
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Measurement. 199:111531