ScVO4:Bi3+ thermographic phosphor particles for fluid temperature imaging with sub-°C precision

2020 ◽  
Vol 45 (14) ◽  
pp. 3893
Author(s):  
Christopher Abram ◽  
Irin Wilson Panjikkaran ◽  
Simon Nnalue Ogugua ◽  
Benoit Fond
Keyword(s):  
Fluid Temperature ◽  
Temperature Imaging ◽  
Thermographic Phosphor

1021 Fluid temperature imaging in microdomain based on fluorescent anisotropy

2015 ◽  
Vol 2015 (0) ◽  
pp. _1021-1_-_1021-2_
Author(s):  
Takuya AIDA ◽  
Yuta Shugyo ◽  
Yuki KAMEYA ◽  
Masahiro MOTOSUKE
Keyword(s):  
Fluid Temperature ◽  
Temperature Imaging

scholarly journals Three-dimensional temperature and velocity measurements in fluids using thermographic phosphor tracer particles

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Moritz Stelter ◽  
Fabio J. W. A. Martins ◽  
Frank Beyrau ◽  
Benoît Fond
Keyword(s):  
Gas Flow ◽  
Measurement Techniques ◽  
Three Dimensional ◽  
Fluid Temperature ◽  
Velocity Measurements ◽  
Tomographic Piv ◽  
Tracer Particles ◽  
Thermographic Phosphor ◽  
Wide Range ◽  
Ratio Imaging

Many flows of technical and scientific interest are intrinsically three-dimensional. Extracting slices using planar measurement techniques allows only a limited view into the flow physics and can introduce ambiguities while investigating the extent of 3D regions. Nowadays, thanks to tremendous progress in the field of volumetric velocimetry, full 3D-3C velocity information can be gathered using tomographic PIV or PTV hence eliminating many of these ambiguities (Discetti and Coletti, 2018; Westerweel et al., 2013). However, for scalar quantities like temperature, 3D measurements remain challenging. Previous approaches for coupled 3D thermometry and velocimetry combined astigmatism PTV with encapsulated europium chelates particles (Massing et al., 2018) or tomographic PIV with thermochromic liquid crystals particles (Schiepel et al., 2021). Here we present a new technique based on solid thermographic phosphor tracer particles, which have been extensively used for planar fluid temperature and velocity measurements (Abram et al., 2018) and are applicable in a wide range of temperatures. The particles are seeded into a gas flow where their 3D positions are retrieved by triangulation from multiple views and their temperatures are derived from two-colour luminescence ratio imaging. In the following, the experimental setup and key processing steps are described before a demonstration of the concept in a turbulent heated jet is shown.

Temperature Imaging in Liquids using ZnO Thermographic Phosphor Particles

2016 ◽  
Author(s):  
Christopher Abram ◽  
Miriam Pougin ◽  
Benoit Fond ◽  
Frank Beyrau
Keyword(s):  
Temperature Imaging ◽  
Thermographic Phosphor

Digital strain and temperature imaging technique

AIAA Journal ◽  
1999 ◽  
Vol 37 ◽  
pp. 1097-1101
Author(s):  
Robert Marino ◽  
Brice Westring ◽  
Gabriel Laufer ◽  
Roland H. Krauss ◽  
Robert Whitehurst
Keyword(s):  
Imaging Technique ◽  
Temperature Imaging

Pressure variation in a fluid at rest (hydrostatics)

2018 ◽  
Author(s):  
Marcel Escudier
Keyword(s):  
Equation Of State ◽  
Static Pressure ◽  
Applied Pressure ◽  
Pressure Variation ◽  
Constant Density ◽  
Fluid Temperature ◽  
Earth’S Atmosphere ◽  
Hydrostatic Equation ◽  
Depth Increase ◽  
Pressure Changes

The three fundamental principles for the variation of static pressure p throughout a body of fluid at rest are (a) the pressure at a point is the same in all directions (Pascal’s law), (b) the pressure is the same at all points on the same horizontal level, and (c) the pressure increases with depth z according to the hydrostatic equation. dp/dz= ρ‎g For a fluid with constant density ρ‎, the increase in pressure over a depth increase h is ρ‎gh, a result which can be used to analyse the response of simple barometers and manometers to applied pressure changes and differences. In situations where very large changes in pressure occur an equation of state may be required to relate pressure and density together with an assumption about the fluid temperature. The hydrostatic equation is still valid but more difficult to integrate, as illustrated by consideration of the earth’s atmosphere.

scholarly journals Relative Entropy Regularised TDLAS Tomography for Robust Temperature Imaging

2020 ◽  
pp. 1-1
Author(s):  
Yong Bao ◽  
Rui Zhang ◽  
Godwin Enemali ◽  
Zhang Cao ◽  
Bin Zhou ◽  
...  
Keyword(s):  
Relative Entropy ◽  
Temperature Imaging

scholarly journals The Electromagnetic-Fluid-Temperature Field Analysis of Loss and Heat of Self-Cooling Separate-Phase Enclosed Bus of Large Generator

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 11372-11377
Author(s):  
Zhen-Nan Fan ◽  
Zu-Ying Bian ◽  
Ke Xiao ◽  
Jing-Can Li ◽  
Bing Yao ◽  
...  
Keyword(s):  
Temperature Field ◽  
Field Analysis ◽  
Fluid Temperature ◽  
Electromagnetic Fluid
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