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Measurement of the atmospheric primary aberrations by a 4-aperture differential image motion monitor
Journal of Optics (United Kingdom), 2011 The present paper investigates and discusses the ability of the Hartmann test with a 4-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations which, in turn, can be used for the calculation of the atmospheric coherence time.
Ahmad Darudi
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Journal of Optics (United Kingdom), 2013
In this paper, the ability of the four-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations is verified experimentally as in agreement with the simulation results. It is shown that the four-aperture DIMM is able to measure the defocus term of atmospheric aberration with reasonable accuracy while the ...
Ahmad Darudi
exaly +2 more sources
In this paper, the ability of the four-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations is verified experimentally as in agreement with the simulation results. It is shown that the four-aperture DIMM is able to measure the defocus term of atmospheric aberration with reasonable accuracy while the ...
Ahmad Darudi
exaly +2 more sources
Design for transmissive differential image motion seeing monitor system
Proceedings of SPIE, 2013A Transmissive differential image motion monitor (DIMM) optical system is introduced, which composed of two identical transmissive optical systems. This two transmissive optical system is composed of two pupil required by DIMM. Compared with traditional reflective DIMM optical system, this new type of DIMM system has a simple structure, small size ...
Lun Jiang, Xing Zhao
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Proceedings of SPIE, 2011
We report on the development, construction, and use of a Differential Image Motion Monitor (DIMM) for measuring optical atmospheric turbulence over static and dynamic maritime ranges. The optical properties of the DIMM that make it suitable for such measurements will be presented along with a detailed overview of its software systems.
Kevin R. Johnson, Randle Dewees
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We report on the development, construction, and use of a Differential Image Motion Monitor (DIMM) for measuring optical atmospheric turbulence over static and dynamic maritime ranges. The optical properties of the DIMM that make it suitable for such measurements will be presented along with a detailed overview of its software systems.
Kevin R. Johnson, Randle Dewees
exaly +2 more sources
SPIE Proceedings, 2003
The Cambridge DIMMWIT was developed for the site of COAST (the Cambridge Optical Aperture Synthesis Telescope), a prototype optical interferometer. Unlike other differential image motion monitors, this design is portable in order to carry out seeing campaigns at the site of any optical inteferometer.
John S. Young +2 more
exaly +2 more sources
The Cambridge DIMMWIT was developed for the site of COAST (the Cambridge Optical Aperture Synthesis Telescope), a prototype optical interferometer. Unlike other differential image motion monitors, this design is portable in order to carry out seeing campaigns at the site of any optical inteferometer.
John S. Young +2 more
exaly +2 more sources
Journal of Modern Optics, 2019
ABSTRACTThe present study aims to evaluate the possibility of simultaneous measurements of Fried parameter and atmospheric Zernike defocus by measuring defocus aberration with 4-aperture differential image motion monitor (DIMM) for a portable telescope.
Akbar Jafari, M Amniat-Talab
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ABSTRACTThe present study aims to evaluate the possibility of simultaneous measurements of Fried parameter and atmospheric Zernike defocus by measuring defocus aberration with 4-aperture differential image motion monitor (DIMM) for a portable telescope.
Akbar Jafari, M Amniat-Talab
exaly +2 more sources
Astronomical seeing at Maidanak Observatory with differential image motion monitor
Journal of Astronomical Telescopes, Instruments, and Systems, 2022Yusufjon Tillayev
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Theoretical possibilities of miniaturized differential image motion monitor
International Conference on Laser, Optical Technology, and Applications (LOTA 2025)Gang Hu, Zhenyu Jin
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Mobile Differential Image Motion Monitor for Astroclimate Research
Astrophysical BulletinEvgeniy Kopylov, S A Potanin
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Numerical simulation of a large area scintillometer and laser differential image motion monitor
Applied Optics, 2021Measurements of atmospheric turbulence along a path can be quantified by scintillometers and differential image motion monitors (DIMMs). The two instruments often measure different levels of turbulence, sometimes varying by nearly an order of magnitude.
David M, Brown +4 more
openaire +2 more sources