scholarly journals Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure

Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 16
Author(s):  
Dongjoo Shin ◽  
Hyeong-U Kim ◽  
Atul Kulkarni ◽  
Young-Hak Kim ◽  
Taesung Kim
Keyword(s):  
Fiber Bragg Grating ◽  
Optical Sensors ◽  
Calibration Curve ◽  
Electromagnetic Interference ◽  
Low Cost ◽  
Force Sensor ◽  
Simulation Software ◽  
Sensor System ◽  
Bragg Grating ◽  
Catheter Tip

Fiber Bragg grating (FBG) sensors have an advantage over optical sensors in that they are lightweight, easy to terminate, and have a high flexibility and a low cost. Additionally, FBG is highly sensitive to strain and temperature, which is why it has been used in FBG force sensor systems for cardiac catheterization. When manually inserting the catheter, the physician should sense the force at the catheter tip under the limitation of power (<0.5 N). The FBG force sensor can be optimal for a catheter as it can be small, low-cost, easy to manufacture, free of electromagnetic interference, and is materially biocompatible with humans. In this study, FBG fibers mounted on two different flexure structures were designed and simulated using ANSYS simulation software to verify their sensitivity and durability for use in a catheter tip. The selected flexure was combined with three FBGs and an interrogator to obtain the wavelength signals. To obtain a calibration curve, the FBG sensor obtained data on the change in wavelength with force at a high resolution of 0.01 N within the 0.1–0.5 N range. The calibration curve was used in the force sensor system by the LabVIEW program to measure the unknown force values in real time.

scholarly journals A low-cost multimode fiber Bragg grating sensor system

2005 ◽  
Author(s):  
Tongyu Liu ◽  
Daorui Wang ◽  
Rasool Raenaei ◽  
Xianfeng Chen ◽  
Lin Zhang ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Low Cost ◽  
Fiber Bragg Grating Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Multimode Fiber ◽  
Bragg Grating Sensor

FIBER BRAGG GRATING BASED SYSTEM FOR TEMPERATURE MEASUREMENTS

2009 ◽  
Vol 23 (10) ◽  
pp. 2349-2356 ◽  
Author(s):  
BASHIR AHMED TAHIR ◽  
JALIL ALI ◽  
ROSLY ABDUL RAHMAN
Keyword(s):  
High Temperature ◽  
Fiber Bragg Grating ◽  
Dynamic Range ◽  
Low Cost ◽  
Sensor System ◽  
Bragg Grating ◽  
Fiber Grating ◽  
Bragg Wavelength ◽  
Heating Water ◽  
Bragg Grating Sensor

In this study, a fiber Bragg grating sensor for temperature measurement is proposed and experimentally demonstrated. In particular, we point out that the method is well-suited for monitoring temperature because they are able to withstand a high temperature environment, where standard thermocouple methods fail. The interrogation technologies of the sensor systems are all simple, low cost and effective as well. In the sensor system, fiber grating was dipped into a water beaker that was placed on a hotplate to control the temperature of water. The temperature was raised in equal increments. The sensing principle is based on tracking of Bragg wavelength shifts caused by the temperature change. So the temperature is measured based on the wavelength-shifts of the FBG induced by the heating water. The fiber grating is high temperature stable excimer-laser-induced grating and has a linear function of wavelength-temperature in the range of 0–285°C. A dynamic range of 0–285°C and a sensitivity of 0.0131 nm/°C almost equal to that of general FBG have been obtained by this sensor system. Furthermore, the correlation of theoretical analysis and experimental results show the capability and feasibility of the purposed technique.

scholarly journals Application of Traditional Graphic Elements Based on Fiber Bragg Grating Tactile Sensor Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jing Xu
Keyword(s):  
Fiber Bragg Grating ◽  
Electromagnetic Interference ◽  
Low Cost ◽  
High Sensitivity ◽  
Tactile Sensor ◽  
Sensor Technology ◽  
Bragg Grating ◽  
Tactile Sensing ◽  
External Interference ◽  
Sensing Technology

In today’s era, sensing technology has been very developed in the fields of machinery, medicine, safety monitoring, and so on. In order to be applicable to more fields, new sensing technologies are also evolving. Tactile and sensory states are two important indicators of human induction to external things. Based on the contact force information between fiber Bragg grating tactile sensor and human body, this paper uses a new fiber Bragg grating tactile sensing system to study the artistic elements of ink painting in modern graphic design. Subsequently, the structure and specific performances of the sensor experimental data are analyzed. With its small volume, low cost, high sensitivity, and good compatibility with the observed body, the new fiber Bragg grating tactile sensor will not be affected by external electromagnetic interference, various noise signals, complex integration, and other problems. According to the data observed by ink painters in this paper, the new tactile sensing technology of fiber Bragg grating can well control the external interference factors. In general, the technology is of great social and practical value.

Dynamic assessment of women pelvic floor function by using a fiber Bragg grating sensor system

2006 ◽  
Author(s):  
Luis A. Ferreira ◽  
Francisco M. Araújo ◽  
Teresa Mascarenhas ◽  
Renato M. Natal Jorge ◽  
António A. Fernandes
Keyword(s):  
Pelvic Floor ◽  
Fiber Bragg Grating ◽  
Dynamic Assessment ◽  
Fiber Bragg Grating Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Pelvic Floor Function ◽  
Floor Function ◽  
Bragg Grating Sensor
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