Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Kara Peters"'
Publikováno v:
Sensors, Vol 24, Iss 19, p 6354 (2024)
Guided waves (GW) allow fast inspection of a large area and hence have received great interest from the structural health monitoring (SHM) community. Fiber Bragg grating (FBG) sensors offer several advantages but their use has been limited for the GW
Externí odkaz:
https://doaj.org/article/ed2fb8008e2f41729a6072934aebfcf8
Publikováno v:
Photonics, Vol 10, Iss 12, p 1366 (2023)
Previous studies demonstrated coupling of acoustic guided waves from one optical fiber to another through a simple adhesive bond coupler. This paper experimentally utilizes such an adhesive bond coupler to easily extend an already existing sensor net
Externí odkaz:
https://doaj.org/article/807b5aae970b4a89aba66b965d9c3bba
Autor:
Andreea Biehl, Ramair Colmon, Anastasia Timofeeva, Ana Maria Gracioso Martins, Gregory R. Dion, Kara Peters, Donald O. Freytes
Publikováno v:
Bioengineering, Vol 10, Iss 5, p 602 (2023)
The vocal folds (VFs) are constantly exposed to mechanical stimulation leading to changes in biomechanical properties, structure, and composition. The development of long-term strategies for VF treatment depends on the characterization of related cel
Externí odkaz:
https://doaj.org/article/5cbee8f81c3c4a1caad4c925b7470171
Publikováno v:
Sensors, Vol 22, Iss 21, p 8426 (2022)
This paper demonstrates that a graded-index (GRIN) phononic lens, combined with a channel waveguide, can focus anti-symmetric Lamb waves for extraction by a detector with strong directional sensitivity. Guided ultrasonic wave inspection is commonly a
Externí odkaz:
https://doaj.org/article/9a1314a5f708487e92a0a14e80976ee2
Publikováno v:
Sensors, Vol 22, Iss 20, p 8000 (2022)
We applied a polarization filter array and high-speed camera to the imaging of biological tissues during large, dynamic deformations at 7000 frames per second. The results are compared to previous measurements of similar specimens using a rotating po
Externí odkaz:
https://doaj.org/article/bfb03690446c4e488bdd5e41dbac6715
Publikováno v:
Sensors, Vol 22, Iss 16, p 6000 (2022)
Structural health monitoring (SHM) systems may allow a reduction in maintenance costs and extend the lifetime of the structure. As a result, they are of interest to the research community. Ideally, the SHM methods should be low cost, while being able
Externí odkaz:
https://doaj.org/article/7f3ea2412a364f05b9d8dc5a5818b8e7
Publikováno v:
Sensors, Vol 22, Iss 11, p 4163 (2022)
Optical fibers were previously demonstrated to propagate and detect acoustic modes that were converted from Lamb waves for structural health-monitoring applications; typically, a fiber Bragg grating sensor in the optical fiber is used to detect acous
Externí odkaz:
https://doaj.org/article/c712ce4eab744b56a4e8b2fffa41741b
Publikováno v:
Sensors, Vol 21, Iss 21, p 7345 (2021)
Guided waves (GW) and acoustic emission (AE) -based structural health monitoring (SHM) have widespread applications in structures, as the monitoring of an entire structure is possible with a limited number of sensors. Optical fiber-based sensors offe
Externí odkaz:
https://doaj.org/article/747a85be32b04571807c54b7a865a79b
Autor:
Ankit Negi, Hwang Pill Kim, Zilong Hua, Anastasia Timofeeva, Xuanyi Zhang, Yong Zhu, Kara Peters, Divine Kumah, Xiaoning Jiang, Jun Liu
Publikováno v:
Advanced Materials.