Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Yongsen Xu"'
Autor:
Tianxiang Ma, Chao Liang, Yuting Han, Fang Yuan, Lingtong Meng, Yongsen Xu, Honghai Shen, Yunqing Liu
Publikováno v:
Photonics, Vol 10, Iss 11, p 1203 (2023)
As the fields of aviation and aerospace optics continue to evolve, there is an increasing demand for enhanced detection capabilities in equipment. Nonetheless, in applications where both optical and mechanical constraints are stringent, the continuou
Externí odkaz:
https://doaj.org/article/32bcd3f559fc4dcba1739780795c7e54
Publikováno v:
Sensors, Vol 23, Iss 10, p 4895 (2023)
Conventional eddy-current sensors have the advantages of being contactless and having high bandwidth and high sensitivity. They are widely used in micro-displacement measurement, micro-angle measurement, and rotational speed measurement. However, the
Externí odkaz:
https://doaj.org/article/18889962cbfb4b028b2ef6752d70136d
Publikováno v:
Sensors, Vol 22, Iss 23, p 9543 (2022)
The ball joint is a multi-degree-of-freedom transmission pair, if it can replace the inner frame in the aviation photoelectric pod to carry the optical load, which will greatly simplify the system structure of the photoelectric pod and reduce the spa
Externí odkaz:
https://doaj.org/article/7cac5d31dd7c4ff48d3535fd66d4c76e
Publikováno v:
Applied Sciences, Vol 12, Iss 9, p 4753 (2022)
Diffractive optical elements (DOEs) are difficult to apply in natural scenes imaging covering the visible bandwidth-spectral due to their strong chromatic aberration and the decrease in diffraction efficiency. Advances in computational imaging make i
Externí odkaz:
https://doaj.org/article/e6a34baf190e4922884eceaf31ba713e
Autor:
Shengqi Yang, Yulei Xu, Yongsen Xu, Tianxiang Ma, Hao Wang, Jinghua Hou, Dachuan Liu, Honghai Shen
Publikováno v:
Sensors, Vol 22, Iss 9, p 3437 (2022)
The spherical pair has an important role in the inner frame of the stabilization mechanism of the aviation optoelectronic pod. However, its two-degrees-of-freedom (2-DOF) angular displacement signal is difficult to detect, seriously restricting its a
Externí odkaz:
https://doaj.org/article/dc98a9b100994fb4982d35802c07460c
Publikováno v:
Applied optics. 61(9)
This paper proposes a design process for additively manufactured mirrors. A central support aspheric mirror and tripod support structure were manufactured via selective laser melting. To achieve substantial weight reduction, an additively manufacture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2c166c8cdb9529f55fce486033a97a8
https://pubmed.ncbi.nlm.nih.gov/35333234
https://pubmed.ncbi.nlm.nih.gov/35333234
Publikováno v:
Optics express. 29(21)
We propose analysis methods for mirror bonding. The functional relationship between the shrinkage of the adhesive layer and the shape accuracy of the mirror is established numerically. By designing the structural form of the optical mounting and sett
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeddfe75fd00ea6ffc55195f1c1c18c8
https://pubmed.ncbi.nlm.nih.gov/34809174
https://pubmed.ncbi.nlm.nih.gov/34809174
Publikováno v:
Optik. 231:166282
Aluminum mirrors are most commonly used for cryogenic optic systems. A parameter simulation has been conducted to design the aluminum mirror. We have obtained an optimized mirror structure after optimization applied in the mirror design stage. A fini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32d8bcb13de99da318602b2e3b726263
https://doi.org/10.1016/j.ijleo.2021.166282
https://doi.org/10.1016/j.ijleo.2021.166282
Publikováno v:
Journal of the Optical Society of Korea. 20:762-769
The dynamic modulation transfer function (MTF) for image degradation caused by sinusoidal vibration is formulated based on a Bessel function of the first kind. The presented method makes it possible to obtain an analytical MTF expression derived for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c1082ed1c1574f886ff87e3ec5771e3
https://doi.org/10.3807/josk.2016.20.6.762
https://doi.org/10.3807/josk.2016.20.6.762
Publikováno v:
Optical Engineering. 59:1
To meet the increasing demand for practicality and rapidity of the optical components in aircraft folding optical systems, an aluminum mirror preparation method based on additive manufacturing (AM) technology is proposed. From the perspective of spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aa2272989b1b510128dec4915e32011
https://doi.org/10.1117/1.oe.59.1.013103
https://doi.org/10.1117/1.oe.59.1.013103