Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors
Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors
复制标题
使用光纤布拉格光栅传感器实时监测射电望远镜副反射镜的位置和方向
DOI:
10.3390/s19030619
复制
发表时间:
2019-02
期刊:
影响因子:
--
通讯作者:
Bao Hong
中科院分区:
文献类型:
--
作者:
Zhao Yong;Du Jingli;Xu Qian;Bao Hong
Environmental loads linked with pointing errors, such as gravity, thermal gradients, and wind disturbances, are a serious concern for large-aperture high-frequency radio telescopes. For the purpose of maintaining the pointing performance of a telescope, a contact measurement scheme is proposed on basis of fiber Bragg grating (FBG) strain sensors that can monitor the sub-reflector shift in real time as the input data of the adjustment system. In this scheme, the relationship between the in situ strain measurement and the deformation of the supporting structure, which is the main cause of sub-reflector shift, is deduced using the inverse Finite Element Method (iFEM). Finally, experimental studies are carried out on a simple physical structure model to validate the effectiveness and accuracy of the contact measurement scheme.
登录
查看更多内容
DOI:
10.1117/12.658499
发表时间:
2006-03
期刊:
--
影响因子:
--
作者:
W. Akl;S. Poh;A. Baz
通讯作者:
W. Akl;S. Poh;A. Baz
影响因子:
4.6
作者:
Akl, W.;Poh, S.;Baz, A.
通讯作者:
Baz, A.
影响因子:
3.5
作者:
Ries, Paul;Hunter, Todd R.;Schwab, Frederic R.
通讯作者:
Schwab, Frederic R.
DOI:
10.1117/12.2055556
发表时间:
2014-07
期刊:
--
影响因子:
--
作者:
T. Pisanu;F. Buffa;S. Poppi;P. Marongiu;G. Serra;G. Vargiu;R. Concu
通讯作者:
T. Pisanu;F. Buffa;S. Poppi;P. Marongiu;G. Serra;G. Vargiu;R. Concu
DOI:
10.3390/s150818666
发表时间:
2015-07-30
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Di Sante R
通讯作者:
Di Sante R