Photonic Sensors

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Demonstration of a Polymer-Based Single Step Waveguide by 3D Printing Digital Light Processing Technology for Isopropanol Alcohol-Concentration Sensor
Photonic Sensors - - 2022
Kankan Swargiary, Romuald Jolivot, Waleed S. Mohammed
AbstractA polymer based horizontal single step waveguide for the sensing of alcohol is developed and analyzed. The waveguide is fabricated by 3-dimensional (3D) printing digital light processing (DLP) technology using monocure 3D rapid ultraviolet (UV) clear resin with a refractive index of n = 1.50. The fabricated waveguide is a one-piec...... hiện toàn bộ
Low-Cost and Highly Sensitive Liquid Refractive Index Sensor Based on Polymer Horizontal Slot Waveguide
Photonic Sensors - Tập 10 Số 1 - Trang 7-15 - 2020
Xiaoxia Ma, Kaixin Chen, Jheng-Yu Wu, Lingfang Wang
Actual Sensing Sensitivity and SNR Measurement of Optical Tweezers Based on Coulomb Force Input
Photonic Sensors - - 2023
Jiaojiao Wang, Xingfan Chen, Shaochong Zhu, Zhenhai Fu, Nan Li, Huizhu Hu
AbstractSensing sensitivity is the key performance of optical tweezers. By adjusting the frequency and magnitude of an applied Coulomb force as an input of optical tweezers, we directly measured the sensitivity and signal-to-noise ratio (SNR) of a system and indirectly calculated the actual noise magnitude. Combined with an output filter, the relationship between t...... hiện toàn bộ
Optical fiber grating vibration sensor for vibration monitoring of hydraulic pump
Photonic Sensors - Tập 7 - Trang 140-147 - 2017
Zhengyi Zhang, Chuntong Liu, Hongcai Li, Zhenxin He, Xiaofeng Zhao
In view of the existing electrical vibration monitoring traditional hydraulic pump vibration sensor, the high false alarm rate is susceptible to electromagnetic interference and is not easy to achieve long-term reliable monitoring, based on the design of a beam of the uniform strength structure of the fiber Bragg grating (FBG) vibration sensor. In this paper, based on the analysis of the vibration...... hiện toàn bộ
Wide absorption spectrum measuring methods by DFB-LDs in water vapor detection system
Photonic Sensors - Tập 4 - Trang 230-235 - 2013
Y. N. Liu, J. Chang, J. Lian, Q. Wang, G. P. Lv, W. J. Wang, Z. Liu, X. Z. Liu, S. S. Zhang, Z. L. Wang, S. Jiang, C. G. Zhu, W. Wei, B. N. Sun
Two measuring methods of the wide absorption spectrum by distributed feedback laser diodes (DFB-LDs) are presented in detecting the water vapor absorption line. One is the subsection scanning method, and it takes advantage of the wide spectrum tuning range by the temperature modulation and fast spectrum tuning speed by current modulation. Specifically, this method is realized by dividing a target ...... hiện toàn bộ
Microfiber Bragg grating for temperature and strain sensing applications
Photonic Sensors - Tập 7 - Trang 44-47 - 2016
Jie Tian, Shuhui Liu, Wenbing Yu, Peigang Deng
Fiber Bragg grating is inscribed on microfiber with femtosecond laser pulses irradiation. The microfiber is fabricated by stretching a section of single mode fiber over a flame. Periodic grooves are carved on the microfiber by the laser as have been observed experimentally. The microfiber Bragg grating is demonstrated for temperature and strain sensing, and the strain sensitivity is improved with ...... hiện toàn bộ
Study on influence of crack on the blade status using FBGs
Photonic Sensors - Tập 8 - Trang 63-69 - 2017
Gang Xu, Lei Liang, Jianzhi Li, Huaping Mei, Hongli Li, Yijun Liu
The status detection for rotating parts is difficult since the sensor is influenced by the rotation in the inflammable, explosive, and strong magnetic environment. Based on the fiber Bragg grating sensing technology, this paper studies the influence of the natural frequency and deformation of a rotor blade affected by the size of crack in the blade. Test results show that the speed of the equipmen...... hiện toàn bộ
Spectroscopy and Light Emitting Diodes Based System in Characterizing External Beam Therapy 3 Films for Solar Ultraviolet Measurement
Photonic Sensors - Tập 10 - Trang 34-44 - 2019
Wan Insaniah Saleha Ahmad Shah, Ahmad Fairuz Omar
Gafchromic external beam therapy 3 (EBT3) film has widely been used in medical field applications. Principally, the EBT3 film’s color gradually changes from light green to darker color under incremental exposures by ionizing or even non-ionizing ultraviolet (UV) radiation. Peak absorbance of the EBT3 film can be used to predict absorbed doses by the film. However, until today, related researches s...... hiện toàn bộ
Polymer Waveguide Coupled Surface Plasmon Refractive Index Sensor: A Theoretical Study
Photonic Sensors - Tập 10 - Trang 353-363 - 2020
Lanting Ji, Shuqing Yang, Rongna Shi, Yujie Fu, Juan Su, Chi Wu
A waveguide coupled surface plasmon sensor for detection of liquid with high refractive index (RI) is designed based on polymer materials. The effects of variation of the thickness of the Au film, polymethyl methacrylate (PMMA) buffer, and waveguide layer on the sensing performance of the waveguide are comprehensively investigated by using the finite difference method. Numerical simulations show t...... hiện toàn bộ
Crack Detection by Optical Voice Recorder Based on Digital Holography
Photonic Sensors - - 2019
Gülhan Ustabaş Kaya, Zehra Saraç
Tổng số: 385   
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