Digital Holography of Aerosol Particles

2017 ◽  
Author(s):  
Matthew J. Berg ◽  
Yuli Heinson ◽  
Osku Kemppinen ◽  
Stephen Holler
Keyword(s):  
Digital Holography ◽  
Aerosol Particles

Digital holography for observing aerosol particles undergoing Brownian motion in microgravity conditions

2006 ◽  
Vol 82 (1-2) ◽  
pp. 379-384 ◽  
Author(s):  
F. Prodi ◽  
G. Santachiara ◽  
S. Travaini ◽  
F. Belosi ◽  
A. Vedernikov ◽  
...  
Keyword(s):  
Brownian Motion ◽  
Digital Holography ◽  
Aerosol Particles ◽  
Microgravity Conditions

Application of digital holography technique to three-dimentional velocimetry of micron-size aerosol particles

2000 ◽  
Vol 31 ◽  
pp. 1019-1020 ◽  
Author(s):  
F. Dubois ◽  
L.C. Joannes ◽  
A.A. Vedernikov ◽  
J.C. Legros
Keyword(s):  
Digital Holography ◽  
Aerosol Particles ◽  
Micron Size

Sensing and Imaging Aerosol Particles with Digital Holography from a UAV

2019 ◽  
Author(s):  
Matthew J. Berg ◽  
Osku Kemppinen ◽  
Jesse Laning ◽  
Ryan Mersmann
Keyword(s):  
Digital Holography ◽  
Aerosol Particles

scholarly journals Imaging atmospheric aerosol particles from a UAV with digital holography

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Osku Kemppinen ◽  
Jesse C. Laning ◽  
Ryan D. Mersmann ◽  
Gorden Videen ◽  
Matthew J. Berg
Keyword(s):  
Digital Holography ◽  
Aerosol Particles ◽  
Field Trials ◽  
Tree Pollen ◽  
Quantitative Characterization ◽  
Multiple Particles ◽  
New Instrument ◽  
Aerial Vehicle ◽  
3D Printed

Abstract The lack of quantitative characterization of aerosol particles and their loading in the atmosphere is one of the greatest uncertainties in climate-change science. Improved instrumentation capable of determining the size and shape of aerosol particles is needed in efforts to reduce this uncertainty. We describe a new instrument carried by an unmanned aerial vehicle (UAV) that images free-floating aerosol particles in the atmosphere. Using digital holography, the instrument obtains the images in a non-contact manner, resolving particles larger than ten micrometers in size in a sensing volume of approximately three cubic centimeters. The instrument, called the holographic aerosol particle imager (HAPI), has the unique ability to image multiple particles freely entering its sensing volume from any direction via a single measurement. The construction of HAPI consists of 3D printed polymer structures that enable a sufficiently low size and weight that it may be flown on a commercial-grade UAV. Examples from field trials of HAPI show images of freshly emitted tree pollen and mineral dust.

scholarly journals Digital holography of optically-trapped aerosol particles

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Grégory David ◽  
Kιvanç Esat ◽  
Ioannis Thanopulos ◽  
Ruth Signorell
Keyword(s):  
Digital Holography ◽  
Aerosol Particles ◽  
Optically Trapped

Two-dimensional scattering and digital holography from isolated aerosol particles

2018 ◽  
Author(s):  
Stephen Holler ◽  
Matthew J. Berg ◽  
Osku Kemppinen ◽  
Yuli Heinson
Keyword(s):  
Digital Holography ◽  
Aerosol Particles ◽  
Two Dimensional

Digital holography with a set of two close wavelengths for height measurement of solder bumps

2020 ◽  
Vol 59 (SO) ◽  
pp. SOOE03
Author(s):  
Hiroyuki Ishigaki ◽  
Takahiro Mamiya ◽  
Yoshio Hayasaki
Keyword(s):  
Digital Holography ◽  
Height Measurement ◽  
Solder Bumps
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