Results 11 to 20 of about 6,931,000 (372)

Analysis of Vibration and Acoustic Signals for Noncontact Measurement of Engine Rotation Speed [PDF]

open access: yesSensors, 2020
The non-contact measurement of engine speed can be realized by analyzing engine vibration frequency. However, the vibration signal is distorted by harmonics and noise in the measurement.
Xuansheng Shan   +4 more
doaj   +3 more sources

Uncertainty-Controlled Remaining Useful Life Prediction of Bearings with a New Data-Augmentation Strategy

open access: yesApplied Sciences, 2022
The remaining useful life (RUL) of bearings based on deep learning methods has been increasingly used. However, there are still two obstacles in deep learning RUL prediction: (1) the training process of the deep learning model requires enough data, but ...
Ran Wang   +4 more
doaj   +1 more source

Evaluation of Field Applicability of High-Speed 3D Digital Image Correlation for Shock Vibration Measurement in Underground Mining

open access: yesRemote Sensing, 2022
When combined with high-speed photography technology, the digital image correlation (DIC) method provides an excellent photographic image processing capability that can be used to convert the evolving full-field surface properties of structures to sets ...
S. Seo, Young-Soo Ko, M. Chung
semanticscholar   +1 more source

LDV-induced stroboscopic digital image correlation for high spatial resolution vibration measurement.

open access: yesOptics Express, 2021
Vibration measurement, particularly mode shape measurement, is an important aspect of structural dynamic analysis since it can validate finite element or analytical vibration models.
Zhipeng Sheng   +7 more
semanticscholar   +1 more source

Cable force measurement system design and experiment based on heterodyne laser Doppler vibrometer

open access: yesDianzi Jishu Yingyong, 2020
Cable force of bridge cable is an important standard to measure the safety of bridge. According to the working principle of laser Doppler vibration measurement, a small and high-precision laser Doppler vibration measurement system is designed and applied
Li Dongming   +5 more
doaj   +1 more source

Reviews on the development of vibration correction for absolute gravimetry

open access: yes地球与行星物理论评, 2022
Absolute gravimeters are precise instruments for directly measuring the gravity acceleration. It can be used as a measurement standard for periodic calibration of the relative gravimeters.
Yi Wen, Kang Wu
doaj   +1 more source

Research Status and Prospect of Torsional Vibration Detection Methods for Rotating Machinery

open access: yesJournal of Harbin University of Science and Technology, 2021
Torsional vibration of rotating machinery is one of the main factors affecting the reliability and service life of rotaing machinery. In recent years, the number of large units accidents caused by torsional vibration is increasing.
GUO Yan-ling, QIU Feng, LI Zhi-peng
doaj   +1 more source

Necessity and Considerations for On-Body Vibration Measurement Equipment

open access: yesProceedings, 2023
The palmar surface (on tool surface) has been defined in ISO 5349-1 as a value of the amount of vibration transmitting to the hand and arm from on-body vibration magnitude.
Setsuo Maeda, Ying Ye, Shuxiang Gao
doaj   +1 more source

Study on Vibration-Transmission-Path Identification Method for Hydropower Houses Based on CEEMDAN-SVD-TE

open access: yesApplied Sciences, 2022
The analysis of the vibration-transmission path is one of the keys to the vibration control and safety monitoring of a hydropower house, and the vibration source of the hydropower house is complex, making it more difficult to analyze the vibration ...
Jianwei Zhang   +4 more
doaj   +1 more source

A Method of Vibration Measurement with the Triboelectric Sensor during Geo-Energy Drilling

open access: yesEnergies, 2023
In the process of geo-energy drilling, the real-time vibration measurement of drill pipes is of significance for an understanding of the downhole conditions and the properties of rock.
Rui Li, He Huang, Chuan Wu
doaj   +1 more source

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