Surface Temperature Mapping of a Metal Plate Using Ultrasound Guided Wave Technique

2021 ◽  
Author(s):  
Guru Prakash Sahu ◽  
Nishanth Raja ◽  
Krishnan Balasubramaniam
Keyword(s):  
Surface Temperature ◽  
Metal Plate ◽  
Guided Wave ◽  
Ultrasound Guided ◽  
Temperature Mapping ◽  
Wave Technique

Surface Temperature Mapping of a Metal Plate using Ultrasound-Guided Wave Technique

2021 ◽  
pp. 1-23
Author(s):  
Guru Prakash Sahu ◽  
Nishanth Raja ◽  
Krishnan Balasubramaniam
Keyword(s):  
Surface Temperature ◽  
Bulk Material ◽  
Metal Plate ◽  
Guided Wave ◽  
Monitoring And Control ◽  
Metal Component ◽  
Metallic Component ◽  
Temperature Mapping ◽  
Mode Of Attachment ◽  
Local Surface Temperature

Abstract Surface temperature mapping is crucial for the monitoring and control of an object of interest, such as furnace, reactor pipes carrying hot fluids, or a component under a temperature dependant process. While the use of waveguides for temperature measurement is well documented in literature, the attachment of the waveguide to a metallic component poses challenges. These include the relationship between the local waveguide temperature and that of the metal component; and wave leakage into the component. In this paper, the authors study the propagation of Shear Horizontal (SH) guided wave in a strip waveguide and its interaction with the notch embodiments in the waveguide. The effects of the type of notch and its depth on the SH mode characteristics are investigated through simulation studies. The mode of attachment of the waveguide to the metal component is by means a slot made in the component. The area of contact between the waveguide and metal component is optimized such that there is minimum wave leakage into the bulk material. Based on the simulation results, a waveguide strip is fabricated and used to monitor the local surface temperature of a test metal component. The waveguide is calibrated by correlating the time of flight shift in the waveforms against reference temperature values. Thereafter, the instantaneous temperature of the metal component is determined from the calibration equations. A set of experimental trials are performed to check for repeatability. The experiments are conducted in near steady-state conditions for better accuracy in the measurements.

A nonlinear-guided wave technique for evaluating plasticity-driven material damage in a metal plate

2009 ◽  
Vol 42 (3) ◽  
pp. 199-203 ◽  
Author(s):  
C. Pruell ◽  
J.-Y. Kim ◽  
J. Qu ◽  
L.J. Jacobs
Keyword(s):  
Metal Plate ◽  
Guided Wave ◽  
Material Damage ◽  
Wave Technique ◽  
Nonlinear Guided Wave

Guided-wave technique for the measurement of dielectric thin-film materials’ thermal properties

2002 ◽  
Vol 41 (16) ◽  
pp. 3127 ◽  
Author(s):  
Pascal Huguet-Chantôme ◽  
Ludovic Escoubas ◽  
François Flory
Keyword(s):  
Thin Film ◽  
Thermal Properties ◽  
Guided Wave ◽  
Dielectric Thin Film ◽  
Wave Technique

Determination of the Flexoelectric Coefficient in Liquid Crystal Using Fully-leaky Optical Guided Wave Technique

2014 ◽  
Vol 43 (12) ◽  
pp. 1231003 ◽  
Author(s):  
郑桂丽 ZHENG Gui-li ◽  
张辉 ZHANG Hui ◽  
叶文江 YE Wen-jiang ◽  
张志东 ZHANG Zhi-dong ◽  
宋宏伟 SONG Hong-wei ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Guided Wave ◽  
Wave Technique

Determination of the refractive indices of layers in a multilayer stack by a guided-wave technique

1999 ◽  
Vol 38 (19) ◽  
pp. 4177 ◽  
Author(s):  
Josep Massaneda ◽  
Francois Flory ◽  
Emile Pelletier
Keyword(s):  
Guided Wave ◽  
Refractive Indices ◽  
Wave Technique

Surface Temperature Mapping Using Luminescent Imaging for Super-Cooled Large Droplet Icing

2018 ◽  
Author(s):  
Wesley C. Patterson ◽  
Yusaku Nishio ◽  
Joseph Gonzales ◽  
Adam Mallette ◽  
Yuichi Hirai ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Large Droplet ◽  
Temperature Mapping
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