Accelerometer Versus Geophone Response - A Field Case History

Hons, Michael S.; Stewart, Robert E.; Lawton, Don C.; Bertram, Malcolm B.; Hauer, Glenn

doi:10.3997/2214-4609.20147584

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…The geophone response depends on the sensor type. The traditional moving‐coil velocimeter has the impulse response of a damped spring, with a natural frequency typically around 10 Hz (Hons et al., 2008). The more recent MEMS accelerometer has, within the sweep band, the response to particle velocity of a temporal derivative.…”

Section: Introductionmentioning

confidence: 99%

In search of the vibroseis first arrival

Trickett

2022

Geophysical Prospecting

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The first step in correcting for time delays of land seismic data due to low-velocity weathered layers is to pick the first-arrival times of the refracting energy. But doing so for vibroseis data can be difficult, as the seismic wavelet is often ringy and uncompact, resulting in cycle-skipped picks. Even when we manage to pick a waveform feature consistently, it is not clear where the first-arrival time is in relation to it. I present a novel method that shapes the seismic wavelet to a Ricker wavelet whose peak is located at the true arrival time, so the time of the first arrival is unambiguous. Further, the arrivals are less ringy and their energy more focused, so that they are less likely to cycle skip or be overwhelmed by random noise. The result is more accurate and consistent first-arrival picks.

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Section: Introductionmentioning

confidence: 99%

In search of the vibroseis first arrival

Trickett

2022

Geophysical Prospecting

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Pipeline leakage alert system with water displacement detection

Rusli

Aziz

Jaafar

et al. 2017

2017 IEEE Conference on Wireless Sensors (ICWiSe)

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Empirical Model of Ground-Borne Vibration Induced by Commuter Railway Traffic

Lazi¹,

Adnan²,

Sulaiman³

2021

JST

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Train-induced ground-borne vibration has a negative effect on residential areas near railway tracks. Residents who are regularly exposed to ground-borne vibration can experience sleep disturbances and more serious health problems in the long run. In addition, it concerns the mental health of those who live nearby. Residents’ productivity and quality of life can be harmed as a result of direct exposure to train-induced ground-borne vibration. The relevant authorities must record a few precise measurements using technically sophisticated instruments and equipment to research further the impact of ground-borne vibrations induced by train traffic. However, the equipment is usually costly, and it has become one of the main stumbling blocks to achieving the desired results. This paper aimed to propose an alternative to the authority’s current guidelines and standards for vibration limits and environmental control. This research established a regression prediction model to forecast the peak particle velocity of commuter train ground-borne vibration. The established model considered a few parameters obtained from site surveys with limited or no tools at all. The data collected was measured along the ground rail tracks involving human-operated trains. Residents living in landed residential areas near railway tracks were selected as the recipients. Finally, the peak particle velocity models were established, validated, and a sensitivity analysis was carried out.

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Accelerometer Versus Geophone Response - A Field Case History

Cited by 3 publications

References 3 publications

In search of the vibroseis first arrival

In search of the vibroseis first arrival

Pipeline leakage alert system with water displacement detection

Empirical Model of Ground-Borne Vibration Induced by Commuter Railway Traffic

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