Results 21 to 30 of about 6,931,000 (372)

Decoupling of Vibration and Temperature Signals of Fiber Bragg Grating Sensor

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper uses a single fiber bragg grating (FBG) sensor to implement an experiment to measure vibration and temperature signals at the same time, and proposes a MATLAB-based decoupling method to separate vibration and temperature signals.
LI Han, ZHANG Botao, WANG Junjie, SUN Yunda, GONG Shengjie
doaj   +1 more source

A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing

open access: yesShock and Vibration, 2021
During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based ...
Haonan Guo   +6 more
doaj   +1 more source

A fast high-resolution vibration measurement method based on vision technology for structures

open access: yesNuclear Engineering and Technology, 2021
Various types of sensors are used at industrial sites to measure vibration. With the increase in the diversity of vibration measurement methods, vibration monitoring methods using camera equipment have recently been introduced.
Ki-Sung Son   +4 more
doaj   +1 more source

Study on applicability of a contactless measurement method for vibration stress using laser displacement sensors

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This study presented a contactless method to measure vibration-induced stress (vibration stress) using multiple laser displacement sensors and the applicability of the method was investigated using beam theory and vibration test.
Akira MAEKAWA   +3 more
doaj   +1 more source

Measuring traffic induced ground vibration using smartphone sensors for a first hand structural health monitoring

open access: yesScientific African, 2021
This study presents the traffic induced ground vibration acquisition capabilities of smartphone sensors. Ground vibration is one of prime interests to geotechnical and geological engineering.
Henok Marie Shiferaw
doaj   +1 more source

Magnetic Levitation Rail Locomotive Vibration on-line Monitoring

open access: yesJournal of Harbin University of Science and Technology, 2018
In order to achieve underground metro flatness measurement,a maglev subway vibration tester was designed. The sensitivity of the photoelectric displacement sensor was calculated. Oscillator kinetic equation was derived. The equation derived is linear ...
JIANG Dong   +3 more
doaj   +1 more source

Review of research on tip-timing and tip clearance measurement technology

open access: yesJournal of Hebei University of Science and Technology, 2021
Turbine blades will fail due to fatigue fracture caused by vibration at high-speed rotation,resulting in damage of rotating machinery.Blade tip-timing measurement technology is the most promising non-contact blade vibration real-time monitoring method at
Liang ZHANG   +3 more
doaj   +1 more source

Study on Synchronous Measurement of Vibration Fatigue of Aluminum Alloy

open access: yesHangkong gongcheng jinzhan, 2019
With the continuous progress of the vibration test technology, the vibration fatigue test has a good test basis and can carry out the vibration fatigue simulation test under various environment.
Peng Yantao   +3 more
doaj   +1 more source

EPIPOLAR LINE-BASED LATERAL VIBRATION MEASUREMENT BY USING TWO CAMERAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Vibration measurement techniques can be categorized into contact-type and non-contact-type techniques. These types of techniques can add mass-loading to a lightweight structure resulting in the negative performance of a structure, because sensors, high ...
A. Javed   +4 more
doaj   +1 more source

Vibration Measurement Based on the Local Maximum Detection Algorithm for Laser Self-Mixing Interferometry

open access: yesIEEE Access, 2020
A novel laser self-mixing interferometry vibration measurement algorithm based on the local maximum detection technique is proposed, that can reconstruct micro vibrations rapidly and easily.
Zihua Zhang   +4 more
semanticscholar   +1 more source

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