An experimental study on detection of load application onto an optical fiber by means of changes of a speckle pattern

2012 ◽  
Author(s):  
Makoto Hasegawa ◽  
Muneki Kawahara
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Speckle Pattern ◽  
Load Application

scholarly journals Experimental Study on the Influence of Edge Surface to Speckle Noise of Optical Fiber

1993 ◽  
Vol 77 (Appendix) ◽  
pp. 182-182
Author(s):  
M. Taniguchi ◽  
H. Makino ◽  
M. Oki ◽  
T. Takagi ◽  
I. Akasaki
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Speckle Noise ◽  
Edge Surface

Behavior of implant and abutment sets of three different connections during the non-axial load application: An in vitro experimental study using a radiographic method

2021 ◽  
pp. 1-12
Author(s):  
Sergio Alexandre Gehrke ◽  
Berenice Anina Dedavid ◽  
José Manuel Granero Marín ◽  
Luigi Canullo
Keyword(s):  
Experimental Study ◽  
Digital Radiography ◽  
Axial Load ◽  
In Vitro Study ◽  
Vitro Study ◽  
Load Application ◽  
Radiographic Method ◽  
Radiography System ◽  
Torque Values

BACKGROUND: During the masticatory cycle, loads of different intensities and directions are received by the dental structures and/or implants, which can cause micromovements at the junction between the abutment and implant. OBJECTIVE: The objective of this in vitro study was to evaluate the behavior of three different implant connections subjected to different load values using a digital radiography system. Additionally, the torque values for removing the abutment screws were also measured and compared. METHODS: Ninety sets of implant and abutment (IA) were used, divided into three groups according to the type of connection (n = 30 per group): EH group, external hexagon type connection; IH group, internal hexagon connection; and, MT group, Morse taper connection. RESULTS: MT group showed the better vertical misfit behavior at the three intensity of load applied, in comparison with EH and IH groups. In the analysis of torque maintenance (detorque test), MT group showed higher values of detorque when compared with the measured values of EH and IH groups (p < 0.001). CONCLUSIONS: The IA sets of EH and IH groups showed a microgap in all levels of applied loads, unlike the MT group this event was not observed. In the detorque test, MT group increase in the torque values when compared to the initial torque applied, unlike EH and IH groups showed a decrease in the initially torque applied in all conditions tested. A positive correlation was detected between the misfit and detorque values.

Theoretical and Experimental Study on Suppression of Speckle from a Multimode Optical Fiber by Dynamic Scrambling

2015 ◽  
Vol 52 (9) ◽  
pp. 090602
Author(s):  
杨聪 Yang Cong ◽  
韩建 Han Jian ◽  
吴元杰 Wu Yuanjie ◽  
叶慧琪 Ye Huiqi ◽  
肖东 Xiao Dong
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Multimode Optical Fiber

Experimental Study on Bidirectional Distributed Side-Pumped Single Mode Optical Fiber Amplifiers

2016 ◽  
Vol 53 (7) ◽  
pp. 070602
Author(s):  
余宇 Yu Yu ◽  
黄值河 Huang Zhihe ◽  
曹涧秋 Cao Jianqiu ◽  
潘志勇 Pan Zhiyong ◽  
郭少锋 Guo Shaofeng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Single Mode ◽  
Fiber Amplifiers ◽  
Single Mode Optical Fiber ◽  
Optical Fiber Amplifiers

Experimental Study on Reflective Optical Fiber Hydrogen Sensor Using Two-Wavelength Light Sources

2012 ◽  
Vol 233 ◽  
pp. 303-306
Author(s):  
Xian Ling Deng ◽  
Chuan De Zhou ◽  
Ze Lun Li ◽  
Xin Gang Wang
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Experimental Method ◽  
Hydrogen Sensor ◽  
Optical Fiber Sensors ◽  
Light Sources ◽  
Fiber Sensors ◽  
Experimental Scheme ◽  
Wavelength Light

Nowadays, optical fiber hydrogen sensor is one of most important potential of optical fiber sensors. Currently, there are a lot of explorations around this aspect. This paper uses experimental method to study reflective optical fiber hydrogen sensor with two-wavelength light sources. Firstly, the experimental principle was introduced. Based on the principle, experimental scheme, devices, and process are described. By the experiment, the reflectance is the output as the main result. The experiment results describes at last.

Theoretical and experimental study on multimode optical fiber grating

2005 ◽  
Vol 250 (1-3) ◽  
pp. 54-62 ◽  
Author(s):  
Wang Yunming ◽  
Dai Jingcao ◽  
Zhang Mingde ◽  
Sun Xiaohan
Keyword(s):  
Experimental Study ◽  
Optical Fiber ◽  
Fiber Grating ◽  
Multimode Optical Fiber
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