Fiber optic multipoint high-resolution level sensor for biomedical applications

1995 ◽  
Author(s):  
Sergei N. Khotiaintsev ◽  
Victor de Leon Paredes ◽  
Esteban Molina-Flores ◽  
A. Zemliak ◽  
V. Svirid ◽  
...  
Keyword(s):  
High Resolution ◽  
Biomedical Applications ◽  
Fiber Optic ◽  
Level Sensor ◽  
Resolution Level

High-resolution fiber optic surface plasmon resonance sensor for biomedical applications

2018 ◽  
Vol 124 (11) ◽  
pp. 113106 ◽  
Author(s):  
Kirill A. Tomyshev ◽  
Diana K. Tazhetdinova ◽  
Egor S. Manuilovich ◽  
Oleg V. Butov
Keyword(s):  
Surface Plasmon Resonance ◽  
High Resolution ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Biomedical Applications ◽  
Fiber Optic ◽  
Surface Plasmon Resonance Sensor ◽  
Resonance Sensor

Development of non-contact fiber-optic fuel level sensor for automobile fuel tank

2021 ◽  
Author(s):  
R. S. Laddha ◽  
P. B. Buchade ◽  
A. D. Shaligram
Keyword(s):  
Fiber Optic ◽  
Fuel Tank ◽  
Level Sensor ◽  
Fuel Level

scholarly journals Light Path Model of Fiber Optic Liquid Level Sensor Considering Residual Liquid Film on the Wall

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Zhijun Zhang ◽  
Shiwei Zhang
Keyword(s):  
Liquid Film ◽  
Fiber Optic ◽  
Glass Tube ◽  
Path Model ◽  
Liquid Level ◽  
Residual Liquid ◽  
Light Refraction ◽  
Special Cases ◽  
Level Sensor ◽  
Liquid Level Sensor

The working principle of the refractive-type fiber optic liquid level sensor is analyzed in detail based on the light refraction principle. The optic path models are developed in consideration of common simplification and the residual liquid film on the glass tube wall. The calculating formulae for the model are derived, constraint conditions are obtained, influencing factors are discussed, and the scopes and skills of application are analyzed through instance simulations. The research results are useful in directing the correct usage of the fiber optic liquid level sensor, especially in special cases, such as those involving viscous liquid in the glass tube monitoring.

scholarly journals A plastic fiber optic liquid level sensor

2004 ◽  
Author(s):  
S. Vargas ◽  
Carmen Vazquez ◽  
Ana B. Gonzalo ◽  
Jose M. Pena
Keyword(s):  
Fiber Optic ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor

Simulation of fiber optic liquid level sensor demodulation system

2013 ◽  
Author(s):  
Cong-qin Yi ◽  
Yun Luo ◽  
Zheng-ping Zhang
Keyword(s):  
Fiber Optic ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor

scholarly journals A low-cost, human-like, high-resolution, tactile sensor based on optical fibers and an image sensor

2018 ◽  
Vol 15 (4) ◽  
pp. 172988141878363 ◽  
Author(s):  
Utku Büyükşahin ◽  
Ahmet Kırlı
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
Fiber Optic ◽  
Low Cost ◽  
Experimental Studies ◽  
Main Idea ◽  
Tactile Sensor ◽  
Image Sensor ◽  
Sensor Design ◽  
Tactile Sensors

Tactile sensors are commonly a coordinated group of receptors forming a matrix array meant to measure force or pressure similar to the human skin. Optic-based tactile sensors are flexible, sensitive, and fast; however, the human fingertip’s spatial resolution, which can be regarded as the desired spatial resolution, still could not be reached because of their bulky nature. This article proposes a novel and patented optic-based tactile sensor design, in which fiber optic cables are used to increase the number of sensory receptors per square centimeter. The proposed human-like high-resolution tactile sensor design is based on simple optics and image processing techniques, and it enables high spatial resolution and easy data acquisition at low cost. This design proposes using the change in the intesity of the light occured due to the deformation on contact/measurement surface. The main idea is using fiber optic cables as the afferents of the human physiology which can have 9 µm diameters for both delivering and receiving light beams. The variation of the light intensity enters sequent mathematical models as the input, then, the displacement, the force, and the pressure data are evaluated as the outputs. A prototype tactile sensor is manufactured with 1-mm spatial and 0.61-kPa pressure measurement resolution with 0–15.6 N/cm2 at 30 Hz sampling frequency. Experimental studies with different scenarios are conducted to demonstrate how this state-of-the-art design worked and to evaluate its performance. The overall accuracy of the first prototype, based on different scenarios, is calculated as 93%. This performance is regarded as promising for further developments and applications such as grasp control or haptics.

High-resolution Fiber Optic Seismic Sensor Array for Intrusion Detection of Subway Tunnel

2018 ◽  
Author(s):  
Jiantao Huang ◽  
Wentao Zhang ◽  
Wenhui Huang ◽  
Wenzhu Huang ◽  
Lixin Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Intrusion Detection ◽  
Sensor Array ◽  
Fiber Optic ◽  
Subway Tunnel

The distributions of HLA-A, HLA-B, HLA-C, HLA-DRB1 and HLA-DQB1 allele and haplotype at high-resolution level in Zhejiang Han population of China

2018 ◽  
Vol 46 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Nanying Chen ◽  
Wei Wang ◽  
Fang Wang ◽  
Lina Dong ◽  
Shuoxian Zhao ◽  
...  
Keyword(s):  
High Resolution ◽  
Han Population ◽  
Resolution Level ◽  
Dqb1 Allele
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