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CAS IR Grid
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南京天文光学技术研究... [5]
长春光学精密机械与物... [1]
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OAI收割 [8]
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会议论文 [6]
期刊论文 [2]
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2021 [1]
2012 [2]
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天文技术与方法 [3]
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A neural network-based model predictive controller for displacement tracking of piezoelectric actuator with feedback delays
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC SYSTEMS, 2021, 卷号: 18, 期号: 6, 页码: 11
作者:
Du, Zhangming
;
Zhou, Chao
;
Cao, Zhiqiang
;
Wang, Shuo
;
Cheng, Long
  |  
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2021/12/28
Piezoelectric actuator
neural network
displacement tracking
model predictive control
Reflector adjustment for a large radio telescope based on active optics
会议论文
OAI收割
Amsterdam, Netherlands, 2012-7-1
作者:
Wang You
;
Li Aihua
;
Zhang Zhenchao
;
Li Tongying
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2014/01/12
13.7 m millimeter-wave telescope
Active surface
Displacement actuator
Intelligent controller
Controller Area Network /Ethernet protocol converter
Design and test of a novel cost-effective piezo driven actuator with a two-stage flexure amplifier for chopping mirrors
会议论文
OAI收割
Amsterdam, Netherlands, 2012-7-1
作者:
Dehua Yang
;
Aihua Li
;
Guohua Zhou
;
Bintang Yang
;
Qingguo Wu
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2014/01/09
linear actuator
two-stage displacement amplifier
piezoelectric and magnetostrictive
flexure
finite element analysis
Research of active supporting technology based on 400mm thin mirror (EI CONFERENCE)
会议论文
OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
作者:
Liu X.-Y.
;
Wang J.-L.
;
Wang J.-L.
;
Liu X.-Y.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Using a spherical mirror of 400mm diameter and 12mm thickness
active supporting technology of thin mirror is researched. The axial support of the mirror is composed of 12 active supports and 3 fixed supports. The force actuator
which is composed of displacement actuator and force sensor
is installed in the active support. The mirror surface is tested by Zygo interferometer. For calibration
each actuator exerts unit force alone
and the surface variation is tested and taken as the response function of the actuator. The response functions of all actuators compose the stiffness matrix. Then the stiffness matrix is used by damped least square method to determine the correction force of each active support. In order to analyze the correction capability of the active supports
14 Zernike modes of the mirror surface are generated and tested respectively
and 7 modes are selected for correction. Initially
the RMS error of mirror surface is 1.16 I( =0.6328nm)when all actuators exert the same force. After 5 iterations
the RMS error of mirror surface is reduced to 0.13
close to the original surface quality. 2010 Copyright SPIE - The International Society for Optical Engineering.
Design and Implementation of Cone Dielectric Elastomer Actuator with Double-Slider Mechanism
期刊论文
OAI收割
JOURNAL OF BIONIC ENGINEERING, 2010, 卷号: 7, 期号: S, 页码: S212-S217
作者:
Luan YG(栾云广)
;
Wang HM(王化明)
;
Zhu YL(朱银龙)
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2012/05/29
dielectric elastomer actuator
negative stiffness
preload
displacement
force
Design and Test of a Micro-displacement Actuator Based on Giant Magnetostrictive Material
会议论文
OAI收割
Weihai, China, 2009-7-8
作者:
Kunxin Chen
;
Dehua Yang
;
Bintang Yang
;
Liang Shao
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2014/01/02
Micro-displacement actuator
giant magnetostrictive material
displacement/stroke pantograph mechanism
astronomical telescope
nanometer resolution.
A type of displacement actuator applied on LAMOST
会议论文
OAI收割
Marseille, France, 2008-6-23
作者:
Yongjun Qi
;
Yajun Zhang
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/12/31
displacement actuator
LAMOST
active optics
nanometer
Measurement of the Actuation Transmitting Mechanism of the Segment Prototype of the LAMOST Telescope
会议论文
OAI收割
San Diego, California, USA, 2005-7-31
作者:
Dehua Yang
;
Yongjun Qi
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/12/24
The LAMOST
Active optics
Displacement actuator
Capacitive displacement sensor
Measurement
Telescope