Results 11 to 20 of about 3,113 (205)
Analysis of a discrete-layout bimorph disk elements piezoelectric deformable mirror [PDF]
Journal of Astronomical Telescopes, Instruments, and Systems, 2018 We introduce a discrete-layout bimorph disk elements piezoelectric deformable mirror (DBDEPDM), driven by the circular flexural-mode piezoelectric actuators.
Chen, Ziguang +4 more
core +2 more sources
Thermal Balance and Active Damping of a Piezoelectric Deformable Mirror for Adaptive Optics
Actuators, 2019 Piezoelectric unimorph deformable mirrors offer a cheap solution to adaptive optics, with mass production capability. However, standard solutions have significant drawbacks: (i) the static shape is sensitive to the temperature, and (ii) the low ...
Kainan Wang +2 more
doaj +3 more sources
Research on a bimorph piezoelectric deformable mirror for adaptive optics in optical telescope
Optics Express, 2017 We have proposed a discrete-layout bimorph piezoelectric deformable mirror (DBPDM) and developed its realistic electromechanical model. Compared with the conventional piezoelectric deformable mirror (CPDM) and the bimorph piezoelectric deformable mirror (BPDM), the DBPDM has both a larger stroke and a higher resonance frequency by integrating the ...
Hairen Wang
exaly +3 more sources
A piezoelectric deformable X-ray mirror for phase compensation based on global optimization
Journal of Synchrotron Radiation, 2019 As a strong tool for the study of nanoscience, the synchrotron hard X-ray nanoprobe technique enables researchers to investigate complex samples with many advantages, such as in situ setup, high sensitivity and the integration of various experimental methods.
Naxi Tian, Dongxu Liang, Guohao Du
exaly +3 more sources
Photonics, 2023 In a photoelectric tracking system, a deformable mirror can be used to adjust the transmission path of a light beam to achieve accurate measurement and tracking of the target position.
Bo Li, Dapeng Tian
doaj +1 more source
Piezoelectric deformable mirror with adaptive multiplexing control [PDF]
Optical Engineering, 2006 Electronic Instrumentation ...
Simonov, A.N. (author) +2 more
openaire +3 more sources
Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle
Photonics, 2022 One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There is quite a large number of such mirrors based on different principles and exhibiting varying performance.
Vasily Matkivsky +3 more
doaj +1 more source
Mirror Deformation by Piezoelectric Actuators
IEEJ Transactions on Sensors and Micromachines, 2006 Recently, MEMS devices are being studied for which the focus can be changed by moving a lens. Therefore, we propose a MEMS-based varifocal mirror in which piezoelectric actuators are used. In this study, we used micromachining to fabricate a varifocal mirror by bonding bulk PZT to Si single crystals, and then evaluated its performance.
Fuminori Tanaka +6 more
openaire +2 more sources
Robust control of a bimorph mirror for adaptive optics system [PDF]
, 2008 We apply robust control technics to an adaptive optics system including a dynamic model of the deformable mirror. The dynamic model of the mirror is a modification of the usual plate equation. We propose also a state-space approach to model the turbulent
Arzelier, Denis +3 more
core +3 more sources
Calibration of force actuators on an adaptive secondary prototype [PDF]
, 2008 In the context of the Large Binocular Telescope project, we present the results of force actuator calibrations performed on an adaptive secondary prototype called P45, a thin deformable glass with magnets glued onto its back.
Brousseau +7 more
core +1 more source