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Journal articles on the topic 'Long distance vibrometry'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ferrer, B., D. Mas, J.I. García-Santos, and G. Luzi. "Parametric Study of the Errors Obtained from the Measurement of the Oscillating Movement of a Bridge Using Image Processing." Nondestructive Evaluation 4 (December 1, 2016): 35:53. https://doi.org/10.1007/s10921-016-0372-6.

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The movement of a pedestrian bridge retrieved by means of image processing technique has been analysed in this paper. An optical target has been attached to the deck and its oscillation has been tracked with fast cameras. The movement of the bridge has also been measured with a radar interferometer and this result has been taken as the reference signal. Using these data, a parametric study of the errors introduced by the image-based methods has been performed. The influence of some variables in the measurement error such as the distance to the target, the image size, the type of camera or the

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2

Pakrashi, Vikram, Biswajit Basu, and Kevin Ryan. "Rapid Assessment of Natural Periods of Large Short-Period Civil Engineering Structures." Key Engineering Materials 569-570 (July 2013): 286–93. http://dx.doi.org/10.4028/www.scientific.net/kem.569-570.286.

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Rapid assessment of large, short-period structures is extremely important for establishing structural integrity. This paper demonstrates experimental non-contact detection of consistent frequency peaks from the ambient vibration of a range of large buildings. Long distance, remote Laser Doppler Vibrometry is employed to estimate the dominant response frequencies of these large building structures from their ambient vibration. These dominant frequencies were reproducible in the frequency domain. The results demonstrate potential field applications of this method in a number of important applica

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3

Liu Xiaoli, 刘晓利, 王紫薇 Wang Ziwei та 傅愉 Fu Yu. "基于远距离激光测振仪的痕量危险品探测". Acta Optica Sinica 43, № 13 (2023): 1312005. http://dx.doi.org/10.3788/aos230829.

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4

Donati, Silvano. "Vibration Measurements by Self-Mixing Interferometry: An Overview of Configurations and Benchmark Performances." Vibration 6, no. 3 (2023): 625–44. http://dx.doi.org/10.3390/vibration6030039.

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Self-mixing interferometry (SMI) is suitable to sense and measure vibrations of amplitudes ranging from picometers to millimeters at frequencies from sub-Hz to MHz’s. As an optical probe, SMI has the advantage of being non-invasive with the ability to measure without any treatment of the target surface and operate from a substantial standoff distance from the target. As an additional advantage, the SMI configuration is much simpler than that of conventional interferometers as it does not require any optical part external to the laser source. After a short introduction to the basics of SMI, we

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5

Kazakov, V. V. "OPERATIONAL CONTROL OF THE ABRASIVE WHEEL USING AN ULTRASONIC VIBROMETER." Kontrol'. Diagnostika, no. 284 (February 2022): 34–40. http://dx.doi.org/10.14489/td.2022.02.pp.034-040.

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The paper considers the use of an ultrasonic phase vibration meter (ultrasonic vibrometer) for operational contactless control of the geometry of the working surface and the beating of abrasive wheels. For this objects, the vibrometer sensor is fixed in a tripod, set at a distance of 15…25 mm from the working surface of the wheel, and the change in distance to it is continuously measured. To fix the angular coordinate, a removable mark is applied to the surface of the wheel. The measurement results are recorded and processed in a computer. The results of diagnostics of wheels, which have been

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6

Kim, Cheol-Hwan, Byung-Wan Jo, and Jin-Taek Jun. "Application of Laser Vibrometer to the Measurement and Control of Cable Tensile Forces in Cable-Stayed Bridges." International Journal of Distributed Sensor Networks 8, no. 10 (2012): 810682. http://dx.doi.org/10.1155/2012/810682.

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The tensile forces acting on the cable of long-span bridges are one of the most important factors since they reflect not only the structural stability of cables but also the overall quality of construction. Currently, indirect measurement using accelerometers attached to the surface of the cable is widely used to measure the natural frequency of cable. The frequency obtained from the accelerometer is converted to the tensile force of the cable. However, it sometimes requires many hazardous labors such as attaching the device on the surface of cable and wiring it with data logger, which could h

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7

He, Xiao Yuan, Fei Peng Zhu, Cheng Fei Wang, and Ying Jun Xu. "Stroboscopic Fringe Projection Method for 3D Dynamic Displacement Measurement." Applied Mechanics and Materials 70 (August 2011): 255–60. http://dx.doi.org/10.4028/www.scientific.net/amm.70.255.

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The determination of dynamic characteristics of microelectromechanical system (MEMS) devices is of great importance. Currently, vibrometer techniques using a Laser-Doppler Vibrometer (LDV) are used for dynamic measurement of MEMS, utilizing an interferometer based on a stroboscope and high-speed cine photomicrography are used for MEMS. But, these methods can’t be used for 3D dynamic displacement measurement simultaneously because of their limitations. In this paper, an optical system for 3D dynamic displacement measurement of micro-components is presented using stroboscopic fringe projection a

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8

O'Connell-Rodwell, Caitlin, Jodie Berezin, Mike Ravicz, and Sunil Puria. "A first look at sound transmission through the elephant middle ear—Not what we expected." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A20. http://dx.doi.org/10.1121/10.0022652.

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Elephants, the largest terrestrial mammals, have the lowest frequency auditory system, even lower than previously thought, which likely facilitates their long-distance communication. We used a 3D laser Doppler vibrometer to quantify ossicular motions of cadaveric middle ears of both African (Loxodonta africana) and Asian (Elephas maximus) elephants as well as humans to understand the mechanics of sound transmission in animals with larger ears than humans. Velocity in the x, y, and z directions from the umbo and stapes over the 7–13,000 Hz range were converted to their anatomical piston directi

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9

He, Jiaze, Patrick E. Leser, William P. Leser, and Fuh-Gwo Yuan. "IWSHM 2017: Damage-scattered wave extraction in an integral stiffened isotropic plate: a baseline-subtraction-free approach." Structural Health Monitoring 17, no. 6 (2018): 1365–76. http://dx.doi.org/10.1177/1475921718769232.

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Ultrasonic guided waves enable long-distance inspection of structures for health monitoring purposes. However, this capability is diminished when applied to complex structures where damage-scattered waves are often buried by scattering from various structural components or boundaries in the time–space domain. Here, a baseline-subtraction-free inspection concept based on the Radon transform is proposed to identify and separate these scattered waves from those scattered by damage. The received time–space domain signals can be converted into the Radon domain, in which the scattered signals from s

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10

Moreau, Stéphane, C. Becerril, and LYM Gicquel. "Large-Eddy-simulation prediction of indirect combustion noise in the entropy wave generator experiment." International Journal of Spray and Combustion Dynamics 10, no. 2 (2017): 154–68. http://dx.doi.org/10.1177/1756827717740775.

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Compact and non-compact analytical solutions of the subsonic operating point of the entropy wave generator experiment are compared with detailed numerical results obtained by large Eddy simulations. Two energy deposition methods are presented to account for the experimental ignition sequence and geometry: a single-block deposition as previously used and a delayed deposition that reproduces the experimental protocle closely. The unknown inlet acoustic reflection coefficient is assumed to be fully reflective to be more physically consistent with the actual experimental setup. The time delay betw

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11

Carra, F., C. Charrondiere, M. Guinchard, and O. Sacristan de Frutos. "Design and Construction of an Instrumentation System to Capture the Response of Advanced Materials Impacted by Intense Proton Pulses." Shock and Vibration 2021 (April 2, 2021): 1–20. http://dx.doi.org/10.1155/2021/8855582.

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In recent years, significant efforts were taken at CERN and other high-energy physics laboratories to study and predict the consequences of particle beam impacts on devices such as collimators, targets, and dumps. The quasi-instantaneous beam impact raises complex dynamic phenomena which may be simulated resorting to implicit codes, for what concerns the elastic or elastoplastic solid regime. However, when the velocity of the produced stress waves surpasses the speed of sound and we enter into the shock regime, highly nonlinear numerical tools, called Hydrocodes, are usually necessary. Such co

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12

Wang, Tao. "Long-distance audio event detection using a laser Doppler vibrometer." SPIE Newsroom, 2010. http://dx.doi.org/10.1117/2.1201006.002961.

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13

Sugimoto, Tsuneyoshi, Yutaka Nakagawa, Kazuko Sugimoto, et al. "Study on movement measurement for internal defects in concrete structures by noncontact acoustic inspection method using correlation processing." Japanese Journal of Applied Physics, March 15, 2024. http://dx.doi.org/10.35848/1347-4065/ad3476.

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Abstract The noncontact acoustic inspection method using acoustic irradiation induced vibration and a scanning laser Doppler vibrometer can detect internal defects in the surface layer of concrete structures, etc., over long distances and without contact. Since this method uses flexural vibration in principle, it can be used as an alternative method to tapping inspection. Therefore, there has been an increase in requests for realizing movement measurement. Thus, an experiment was conducted to verify whether movement measurement was possible by mounting multiple LDVs and sound sources that did

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14

Mustapha, Samir, Bengisu Yilmaz, Jan Heimann, Jens Prager, and Blaz Brence. "Guided Waves Propagation in Composite Overwrapped Pressure Vessel." Research and Review Journal of Nondestructive Testing 1, no. 1 (2023). http://dx.doi.org/10.58286/28068.

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The application of composite overwrapped pressure vessels (COPV) to store hydrogen and other compressed gases, especially when operating at high pressures, imposed the need for an innovative and reliable approach to ensure the safe operation of the system. Continuous structural health monitoring (SHM) based on ultrasonic guided waves (GWs) is a promising approach due to the ability of the wave to propagate for long distances and go around complex structures, moreover the high sensitivity to various failure modes such as delamination, matrix cracking and debonding. In this study, we scrutinize

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15

Carra, Federico, Cedric Charrondiere, Michael Guinchard, and de Frutos Oscar Sacristan. "Design and Construction of an Instrumentation System to Capture the Response of Advanced Materials Impacted by Intense Proton Pulses." April 5, 2021. https://doi.org/10.1155/2021/8855582.

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Abstract:

In recent years, significant efforts were taken at CERN and other high-energy physics laboratories to study and predict the consequences of particle beam impacts on devices such as collimators, targets, and dumps. The quasi-instantaneous beam impact raises complex dynamic phenomena which may be simulated resorting to implicit codes, for what concerns the elastic or elastoplastic solid regime. However, when the velocity of the produced stress waves surpasses the speed of sound and we enter into the shock regime, highly nonlinear numerical tools, called Hydrocodes, are usually necessary. Such co

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