Optical fibre temperature sensor based on thermochromic liquid crystal

2019 ◽  
Author(s):  
Chenyang He ◽  
Serhiy Korposh ◽  
Ricardo Correia ◽  
Barrie R. Hayes-Gill ◽  
Stephen P. Morgan
Keyword(s):  
Liquid Crystal ◽  
Optical Fibre ◽  
Temperature Sensor ◽  
Thermochromic Liquid Crystal

scholarly journals Evaluation of a Thermochromic Liquid Crystal for Use as a Temperature Sensor for Components of Electrical Systems

2017 ◽  
Vol 20 (suppl 2) ◽  
pp. 130-136 ◽  
Author(s):  
Roselane Bussolo Cesconeto ◽  
Andresa Rodrigues ◽  
Alexandre Gonçalves Dal-Bó ◽  
Newton Luiz Dias Filho ◽  
Marcio Roberto da Rocha ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Temperature Sensor ◽  
Thermochromic Liquid Crystal ◽  
Electrical Systems

Fibre strain induced during heat cycle in liquid-crystal polyester-jacket optical fibre

1984 ◽  
Vol 20 (20) ◽  
pp. 841 ◽  
Author(s):  
Y. Shuto ◽  
F. Yamamoto ◽  
S. Yamakawa
Keyword(s):  
Liquid Crystal ◽  
Optical Fibre ◽  
Heat Cycle ◽  
Fibre Strain

Light propagation mechanism switching in a liquid crystal infiltrated microstructured polymer optical fibre

2015 ◽  
Vol 23 (4) ◽  
Author(s):  
K.A. Rutkowska ◽  
K. Milenko ◽  
O. Chojnowska ◽  
R. Dąbrowski ◽  
T.R. Woliński
Keyword(s):  
Liquid Crystal ◽  
Optical Fibre ◽  
Total Internal Reflection ◽  
Light Propagation ◽  
Propagation Mechanism ◽  
External Temperature ◽  
Air Channels ◽  
Propagation Properties ◽  
Infiltration Method ◽  
Light Guidance

AbstractIn this work studies on propagation properties of a microstructured polymer optical fibre infiltrated with a nematic liquid crystal are presented. Specifically, the influence of an infiltration method on the LC molecular alignment inside fibre air-channels and, thus, on light guidance is discussed. Switching between propagation mechanisms, namely the transition from modified total internal reflection (mTIR) to the photonic bandgap effect obtained by varying external temperature is also demonstrated.

scholarly journals Wireless Temperature Sensor Based on a Nematic Liquid Crystal Cell as Variable Capacitance

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3436 ◽  
Author(s):  
Juan Torres ◽  
Braulio García-Cámara ◽  
Isabel Pérez ◽  
Virginia Urruchi ◽  
José Sánchez-Pena
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Temperature Sensor ◽  
Liquid Crystal Cell ◽  
Smart Sensors ◽  
The Internet ◽  
Proof Of Concept ◽  
Biomedical Sensors ◽  
Variable Capacitance ◽  
The Internet Of Things

Wireless communication is growing quickly and now allows technologies like the Internet of Things (IoT). It is included in many smart sensors helping to reduce the installation and system costs. These sensors increase flexibility, simplify deployment and address a new set of applications that was previously impossible with a wired approach. In this work, a wireless temperature sensor based on a nematic liquid crystal as variable capacitance is proposed as a proof of concept for potential wearable applications. Performance analysis of the wireless temperature sensor has been carried out and a simple equivalent circuit has been proposed. Sensor prototype has been successfully fabricated and demonstrated as the beginning of new biomedical sensors.

scholarly journals Comparison of new-generation renal artery denervation systems: assessing lesion size and thermodynamics using a thermochromic liquid crystal phantom model

2017 ◽  
Vol 13 (10) ◽  
pp. 1242-1247 ◽  
Author(s):  
Sara Al Raisi ◽  
Michael Barry ◽  
Pierre Qian ◽  
Abhishek Bhaskaran ◽  
Jim Pouliopoulos ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Renal Artery ◽  
Lesion Size ◽  
Thermochromic Liquid Crystal ◽  
Phantom Model ◽  
Renal Artery Denervation ◽  
New Generation

Temperature sensor based on a Sagnac interferometer using a liquid crystal-filled microstructured optical fiber

2019 ◽  
Vol 6 (8) ◽  
pp. 085205
Author(s):  
Mingjian Ma ◽  
Hailiang Chen ◽  
Wenxun Zhang ◽  
Shuguang Li ◽  
Xili Jing
Keyword(s):  
Liquid Crystal ◽  
Optical Fiber ◽  
Temperature Sensor ◽  
Sagnac Interferometer ◽  
Microstructured Optical Fiber

A novel approach to thermochromic liquid crystal calibration using neural networks

2006 ◽  
Vol 17 (7) ◽  
pp. 1918-1924 ◽  
Author(s):  
G S Grewal ◽  
M Bharara ◽  
J E Cobb ◽  
V N Dubey ◽  
D J Claremont
Keyword(s):  
Neural Networks ◽  
Liquid Crystal ◽  
Thermochromic Liquid Crystal ◽  
Novel Approach

Renal Artery Branch Denervation: Evaluation of Lesion Characteristics Using a Thermochromic Liquid Crystal Phantom Model

2020 ◽  
Vol 29 (3) ◽  
pp. 445-451 ◽  
Author(s):  
Sara I. Al Raisi ◽  
Jim Pouliopoulos ◽  
Michael T. Barry ◽  
Pierre Qian ◽  
Aravinda Thiagalingam ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Renal Artery ◽  
Thermochromic Liquid Crystal ◽  
Phantom Model ◽  
Artery Branch
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