Remote Bridge Monitoring Using Infrasound

Whitlow, Robert; Haskins, Richard; McComas, Sarah; Crane, C. Kennan; Howard, Isaac L.; McKenna, Mihan H.

doi:10.1061/(asce)be.1943-5592.0001375

Cited by 18 publications

(19 citation statements)

References 35 publications

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“…Operational guidelines and considerations have been developed over a decade of research utilizing infrasound technology for wide-area infrastructure monitoring at the ERDC. These guidelines include instrumentation considerations, array site selection, meteorological considerations, and signal processing (Simpson et al 2019;Whitlow et al 2019;Whitlow 2019). Whitlow et al (2019).…”

Section: Operational Considerationsmentioning

confidence: 99%

“…These guidelines include instrumentation considerations, array site selection, meteorological considerations, and signal processing (Simpson et al 2019;Whitlow et al 2019;Whitlow 2019). Whitlow et al (2019). Understanding the frequency range of the source of interest should be considered when designing array geometry and selecting model of infrasound sensors.…”

Section: Operational Considerationsmentioning

confidence: 99%

“…Conversely, a sensor array placed too far from the source may be unable to detect infrastructure's low energy signals. Additional details concerning site selection can be found in Whitlow (2019) Whitlow et al 2019;Whitlow 2019), it is often only local meteorological conditions that need to be captured. Specific conditions can either be constructive or destructive to signal detection.…”

Section: Operational Considerationsmentioning

confidence: 99%

“…Research efforts by the U.S. Army Engineer Research and Development Center (ERDC) utilize arrays of infrasound sensors deployed surrounding the structure of interest (Simpson et al 2019 provides detailed information) for data collection (Diaz-Alvarez et al 2009;McKenna et al 2009a and2009c;Whitlow et al 2012;McComas et al 2016;Whitlow et al 2016). Each array typically contains five infrasound sensors deployed in a 60 m by 60 m cross-pattern with a sensor deployed at each of the cardinal points and one at the center of the array for omni-directional detection capabilities (Simpson et al 2019;Whitlow et al 2019). Three arrays (minimum) are needed to triangulate to a source, but source back azimuth can be determined through frequency-wavenumber (F-K) analysis (Rost and Thomas 2002) if three arrays cannot be used.…”

Section: Introductionmentioning

confidence: 99%

“…This manuscript aims to provide the state-of-the-art on the use of infrasound for monitoring multiple sources within a transportation network based on a single system of sensors within the area. A brief summary of the companion effort by this research group where Br 18-0009 was successfully detected via infrasound can be found in Whitlow et al (2019). Thereafter, eleven additional sources in the vicinity of Br 18-0009 were identified for investigation via infrasound to determine the potential and limitations of simultaneously monitoring several infrastructure elements (Table 1) over time from a single array of sensors.…”

Section: Introductionmentioning

confidence: 99%

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Infrastructure Structural Health Monitoring via Infrasound

Whitlow¹,

Howard²,

Jordan³

et al. 2020

Structures Congress 2020

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Infrasound is an emerging remote sensing technology related to low-frequency acoustics. This paper provides a state-of-the-art assessment of infrasound's ability to detect and monitor a diverse array of infrastructure, including a discussion of best practices for use and potential limitations. This paper follows field experiments where researchers were focused on a single bridge source with infrasound (remote monitoring) and on-structure instrumentation, in which the on-structure data validated infrasound data. After completing the assessment of the bridge of primary interest, the question of wide-area infrasound monitoring was raised. While the original experiment series focused on a single bridge source, further evaluation of the data set identified multiple sources within the area of study via infrasound, allowing investigation of the feasibility of multiple-source monitoring. These additional sources included hydraulic features, bridges, industrial activity, and a dam. Some of these features were detected via infrasound while others were not. Structures Congress 2020Downloaded from ascelibrary.org by 44.224.250.200 on 08/02/20.

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Section: Operational Considerationsmentioning

confidence: 99%

Section: Operational Considerationsmentioning

confidence: 99%

Section: Operational Considerationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Infrastructure Structural Health Monitoring via Infrasound

Whitlow¹,

Howard²,

Jordan³

et al. 2020

Structures Congress 2020

Self Cite

View full text Add to dashboard Cite

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Airborne Infrasound Makes a Splash

Bowman

2021

Geophysical Research Letters

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Acoustic waves can travel vast distances in planetary atmospheres. These waves convey information both on the source that generated them as well as the properties of the medium they travel through. On Earth, these acoustic waves typically fall in the "infrasound" range (<20 Hz, the lower limit of human hearing), since higher frequency waves attenuate more quickly. Infrasound waves can circle the globe multiple times given a powerful enough source (Le Pichon et al., 2013;Symons, 1888).A variety of natural and anthropogenic phenomena gives rise to infrasound. Discrete natural events such as bolide airbursts (Ens et al., 2012;Silber et al., 2009), large earthquakes (Le Pichon et al., 2005;Shani-Kadmiel et al., 2021), and volcanic eruptions (Fee & Matoza, 2013) create signals that can travel over regional to global scales. Other activity such as colliding ocean waves (the "ocean microbarom") (Waxler & Gilbert, 2006), wind blowing over mountains (Bedard, 1978;Walterscheid & Hickey, 2005), and severe storms (Goerke & Woodward, 1966) can create long duration signals that comprise much of the Earth's infrasonic background at low frequencies. Regional to local infrasound (and occasionally audible emissions) have been reported from small earthquakes (

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Metamaterial-based passive analog processor for wireless vibration sensing

Zhang,

Polamarasetty,

Shahid

et al. 2024

Commun Eng

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Real-time, low-cost, and wireless mechanical vibration monitoring is necessary for industrial applications to track the operation status of equipment, environmental applications to proactively predict natural disasters, as well as day-to-day applications such as vital sign monitoring. Despite this urgent need, existing solutions, such as laser vibrometers, commercial Wi-Fi devices, and cameras, lack wide practical deployment due to their limited sensitivity and functionality. Here we proposed a fully passive, metamaterial-based vibration processing device, fabricated prototypes working at different frequencies ranging from 5 Hz to 285 Hz, and verified that the device can improve the sensitivity of wireless vibration measurement methods by more than ten times when attached to vibrating surfaces. Additionally, the device realizes an analog real-time vibration filtering/labeling effect, and the device also provides a platform for surface editing, which adds more functionalities to the current non-contact sensing systems. Finally, the working frequency of the device is widely adjustable over orders of magnitudes, broadening its applicability to different applications, such as structural health diagnosis, disaster warning, and vital signal monitoring.

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Remote Bridge Monitoring Using Infrasound

Cited by 18 publications

References 35 publications

Infrastructure Structural Health Monitoring via Infrasound

Infrastructure Structural Health Monitoring via Infrasound

Airborne Infrasound Makes a Splash

Metamaterial-based passive analog processor for wireless vibration sensing

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