Vibrational stability improvement of a mirror system using active mass damping

Autor:	Shijing He, Haoran Yuan, Tianyu Wu, Nuo Chen, Xinyu Zhang, Zhizhuo Wang, Xuerong Liu, Fang Liu
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	active vibration control active mass damper spillover effect free-electron laser Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Crystallography QD901-999
Zdroj:	Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1126-1133 (2024)
Druh dokumentu:	article
ISSN:	1600-5775 16005775
DOI:	10.1107/S1600577524006490
Popis:	Addressing the demand for high stability of beamline instruments at the SHINE facility, a high stability mirror regulating mechanism has been developed for mirror adjustments. Active mass damping was adopted to attenuate pitch angle vibrations of mirrors caused by structural vibrations. An internal absolute velocity feedback was used to reduce the negative impact of spillover effects and to improve performance. The experiment was conducted on a prototype structure of a mirror regulating mechanism, and results showed that the vibration RMS of the pitch angle was effectively attenuated from 47 nrad to 27 nrad above 1 Hz.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/c3c587873c674a2e8c71dcb500d2aecf Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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