scholarly journals Sensitivity enhancement using annealed polymer optical-fibre-based sensors for pressure sensing applications

2016 ◽  
Author(s):  
A. Pospori ◽  
C. A. F. Marques ◽  
D. Sáez-Rodríguez ◽  
K. Nielsen ◽  
O. Bang ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Sensitivity Enhancement ◽  
Pressure Sensing ◽  
Sensing Applications

scholarly journals Utilising thermal annealing for multiplexing and sensitivity enhancement of polymer optical fibre sensors

2019 ◽  
Author(s):  
Andreas Pospori ◽  
Carlos A. F. Marques ◽  
Georgios Sagias ◽  
Horacio Lamela-Rivera ◽  
David Sáez-Rodríguezd ◽  
...  
Keyword(s):  
Thermal Annealing ◽  
Optical Fibre ◽  
Sensitivity Enhancement ◽  
Optical Fibre Sensors

Carbon nanotube-based thermoplastic polyurethane-poly(methyl methacrylate) nanocomposites for pressure sensing applications

2016 ◽  
Vol 56 (9) ◽  
pp. 1031-1036 ◽  
Author(s):  
Syed Muhammad Imran ◽  
Godlisten N. Shao ◽  
M. Salman Haider ◽  
Hae Jin Hwang ◽  
Yong-Ho Choa ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Methyl Methacrylate ◽  
Thermoplastic Polyurethane ◽  
Pressure Sensing ◽  
Poly Methyl Methacrylate ◽  
Sensing Applications

scholarly journals Adding memory to pressure-sensitive phosphors

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Robin R. Petit ◽  
Simon E. Michels ◽  
Ang Feng ◽  
Philippe F. Smet
Keyword(s):  
Depth Distribution ◽  
Light Emission ◽  
Memory Function ◽  
Trap Depth ◽  
Mechanical Action ◽  
Stress Distributions ◽  
Pressure Sensing ◽  
Sensing Applications ◽  
Pressure Sensitive ◽  
Direct Light

Abstract Mechanoluminescence (ML) is the phenomenon describing the emission of light during mechanical action on a solid, leading to applications such as pressure sensing, damage detection and visualization of stress distributions. In most cases, this mechanical action releases energy that was previously stored in the crystal lattice of the phosphor by means of trapped charge carriers. A drawback is the need to record the ML emission during a pressure event. In this work, we provide a method for adding a memory function to these pressure-sensitive phosphors, allowing an optical readout of the location and intensity of a pressure event in excess of 72 h after the event. This is achieved in the BaSi2O2N2:Eu2+ phosphor, where a broad trap depth distribution essential for the process is present. By merging optically stimulated luminescence (OSL), thermoluminescence (TL) and ML measurements, the influence of light, heat and pressure on the trap depth distribution is carefully analysed. This analysis demonstrates that mechanical action can not only lead to direct light emission but also to a reshuffling of trap occupations. This memory effect not only is expected to lead to new pressure sensing applications but also offers an approach to study charge carrier transitions in energy storage phosphors.

scholarly journals Regenerating leather waste for flexible pressure sensing applications

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Jie Lei ◽  
Binghua Zou ◽  
Runan Zhang ◽  
Kang Zhang ◽  
Ruijie Xie ◽  
...  
Keyword(s):  
Pressure Sensing ◽  
Sensing Applications ◽  
Leather Waste
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