Results 81 to 90 of about 60,127 (297)

Small and Robust All-Polymer Fiber Bragg Grating Based pH Sensor

Journal of Lightwave Technology, 2019
The smallest all-polymer optical fiber Bragg grating based transducer element for pH sensing is presented. We show that, considering it's size and robustness, it out-performs similar state-of-the-art fiber Bragg grating based pH sensors regarding both ...
J. Janting, J. Pedersen, G. Woyessa, K. Nielsen, O. Bang   +4 more
semanticscholar   +1 more source

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

Advanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash, Saddam Gafsi, Estevao Marques Dos Santos, Ivan Kravchenko, Judson D. Ryckman   +4 more
wiley   +1 more source

Single-Mode versus Multimode Fiber Bragg Grating Temperature Sensors: A Theoretical Study

Results in Optics
This paper aims to enhance understanding regarding the impact of the geometrical parameters of the grating on the transmission spectrum of single-mode and multimode fiber Bragg grating sensors and to compare the performance of both sensors for ...
Paul Stone Macheso, Mohssin Zekriti
doaj   +1 more source

Fiber optic micro sensor for the measurement of tendon forces

BioMedical Engineering OnLine, 2012
A fiber optic sensor developed for the measurement of tendon forces was designed, numerically modeled, fabricated, and experimentally evaluated. The sensor incorporated fiber Bragg gratings and micro-fabricated stainless steel housings.
Behrmann Gregory P, Hidler Joseph, Mirotznik Mark S   +2 more
doaj   +1 more source

Quantitative sensitivity analysis of surface attached optical fiber strain sensor [PDF]

, 2014
Optical fiber strain sensors, in particular, the fiber Bragg grating (FBG) type, are widely applied in different applications. The most common installation method is surface-attached.
Wan, KT
core   +1 more source

Fiber Bragg Grating-Based Triaxial Force Sensor With Parallel Flexure Hinges

IEEE transactions on industrial electronics (1982. Print), 2018
During cardiac surgery, the excessive or insufficient contact force between the tip of catheter and heart tissue will lead to the cardiac penetration or noneffective ablative lesion.
Anzhu Gao, Yuanyuan Zhou, Lei Cao, Zhidong Wang, Hao Liu   +4 more
semanticscholar   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Ultra-High Sensitive Strain Sensor Based on Post-Processed Optical Fiber Bragg Grating

Fibers, 2014
An ultra-high sensitive strain sensor is proposed. The sensing head, based on the post-processing of a fiber Bragg grating, is used to perform passive and active strain measurements.
Marta S. Ferreira, Jörg Bierlich, Martin Becker, Kay Schuster, José L. Santos, Orlando Frazão   +5 more
doaj   +1 more source

Diaphragm Based Fiber Bragg Grating Acceleration Sensor with Temperature Compensation

Italian National Conference on Sensors, 2017
A novel fiber Bragg grating (FBG) sensing-based acceleration sensor has been proposed to simultaneously decouple and measure temperature and acceleration in real-time. This design applied a diaphragm structure and utilized the axial property of a tightly
Tianliang Li, Yuegang Tan, Xue Han, Kai Zheng, Zude Zhou   +4 more
semanticscholar   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source