Guided wave generation and sensing system using a single laser source and optical fibers

2010 ◽  
Author(s):  
Hyeonseok Lee ◽  
Hyun-Jun Park ◽  
Hoon Sohn ◽  
Il-bum Kwon
Keyword(s):  
Optical Fibers ◽  
Wave Generation ◽  
Guided Wave ◽  
Laser Source ◽  
Sensing System ◽  
Single Laser

Integrated guided wave generation and sensing using a single laser source and optical fibers

2010 ◽  
Vol 21 (10) ◽  
pp. 105207 ◽  
Author(s):  
Hyeonseok Lee ◽  
Hyun-Jun Park ◽  
Hoon Sohn ◽  
Il-Bum Kwon
Keyword(s):  
Optical Fibers ◽  
Wave Generation ◽  
Guided Wave ◽  
Laser Source ◽  
Single Laser

In situ multiplexing long-path fiber optic remote sensing system of methane with single laser source

2002 ◽  
Author(s):  
Wang-bao Yin ◽  
Jian-ming Zhao ◽  
Chang-yong Li ◽  
Liantuan Xiao ◽  
Suotang Jia
Keyword(s):  
Remote Sensing ◽  
Fiber Optic ◽  
Laser Source ◽  
Sensing System ◽  
Single Laser

scholarly journals Development of a Novel Guided Wave Generation System Using a Giant Magnetostrictive Actuator for Nondestructive Evaluation

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 779 ◽  
Author(s):  
Mingzhang Luo ◽  
Weijie Li ◽  
Junming Wang ◽  
Ning Wang ◽  
Xuemin Chen ◽  
...  
Keyword(s):  
Nondestructive Evaluation ◽  
Wave Generation ◽  
Guided Wave ◽  
Generation System ◽  
Magnetostrictive Actuator

scholarly journals Signal Strength Enhancement of Magnetostrictive Patch Transducers for Guided Wave Inspection by Magnetic Circuit Optimization

2019 ◽  
Vol 9 (7) ◽  
pp. 1477 ◽  
Author(s):  
Jianjun Wu ◽  
Zhifeng Tang ◽  
Keji Yang ◽  
Fuzai Lv
Keyword(s):  
Magnetic Field ◽  
Magnetic Circuit ◽  
Energy Conversion Efficiency ◽  
Wave Generation ◽  
Guided Wave ◽  
Shear Mode ◽  
Circuit Optimization ◽  
Affecting Factors ◽  
Long Distance ◽  
Dynamic Magnetic Field

Magnetostrictive patch transducers (MPT) with planar coils are ideal candidates for shear mode generation and detection in pipe and plate inspection with the advantages of flexibility, lightness and good directivity. However, the low energy conversion efficiency limits the application of the MPT in long distance inspection. In this article, a method for the enhancement of the MPT was proposed by dynamic magnetic field optimization using a soft magnetic patch (SMP). The SMP can reduce the magnetic resistance of the magnetic circuit, which increases the dynamic magnetic field intensity in the magnetostrictive patch during wave generation and restricts the induced dynamic magnetic field within the area around the coils for sensing during wave detection. Numerical simulations carried out at different frequencies verified the improvement of the dynamic magnetic fields by the SMP and influence of different affecting factors. The experimental validations of the signal enhancement in wave generation and detection were performed in an aluminum plate. The amplitude magnification could reach 12.7 dB when the MPTs were covered by the SMPs. Based on the numerical and experimental results, the SMP with a large relative permeability and thickness and close fitting between the SMP and coils were recommended when other application conditions were met.

scholarly journals Single laser source for multimodal coherent anti-Stokes Raman scattering microscopy

2010 ◽  
Vol 49 (25) ◽  
pp. F10 ◽  
Author(s):  
Adrian F. Pegoraro ◽  
Aaron D. Slepkov ◽  
Andrew Ridsdale ◽  
John Paul Pezacki ◽  
Albert Stolow
Keyword(s):  
Raman Scattering ◽  
Laser Source ◽  
Single Laser ◽  
Anti Stokes

Dual‐color STED super‐resolution microscope using a single laser source

2020 ◽  
Vol 13 (8) ◽  
Author(s):  
Jialin Wang ◽  
Jia Zhang ◽  
Luwei Wang ◽  
Xinwei Gao ◽  
Yonghong Shao ◽  
...  
Keyword(s):  
Super Resolution ◽  
Laser Source ◽  
Single Laser ◽  
Dual Color
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