Contributions to model characterization of geophone sensor

Roset, X.; Río, Joaquín Del; Mànuel, A.; Palomera-Garcia, R.

doi:10.1109/imtc.2004.1351455

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…The working principle of the geophone is illustrated in Figure 5 (Roset et al, 2004). A coil is encircled around a seismic mass m and loaded by a resistance R. The ground w generates a relative motion between m and the coil.…”

Section: Geophonementioning

confidence: 99%

Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement

Collette¹,

Janssens²,

Fernandez-Carmona³

et al. 2012

Bulletin of the Seismological Society of America

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The objective of this paper is to review recent advances in the sensors used to measure seismic linear vibrations at low frequencies. The main types of inertial sensors are reviewed: absolute displacement sensors, geophones, accelerometers, and seismometers. The working principle of each of them is explained, along with the general strategies to extend their bandwidth. Finally, the principle fundamental limitations of all inertial sensors are reviewed: tilt-to-horizontal coupling, zerolength springs, and sources of noise.

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Section: Geophonementioning

confidence: 99%

Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement

Collette¹,

Janssens²,

Fernandez-Carmona³

et al. 2012

Bulletin of the Seismological Society of America

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“…R s is a shunt resistor and R tot is the summation of the shunt resistance and the coil resistance, where S is determined, by FEM, to be 17.35 V/(m/s) [27,28]. Fig.…”

Section: Non-linear Spring Effectmentioning

confidence: 99%

Modeling of an electromagnetic geophone with passive magnetic spring

Oome

Janssen

Encica

et al. 2009

Sensors and Actuators A: Physical

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“…A first model is based on passive elements [13], including a controlled source to obtain the needed gain. This model is shown in Figure 10.…”

Section: The Mechanical Design Of the Obsmentioning

confidence: 99%

“…This identification implements a model to approach the frequency response of the sensor via electric circuits. A first model is based on passive elements [ 13 ], including a controlled source to obtain the needed gain. This model is shown in Figure 10 .…”

Section: The Mechanical Design Of the Obsmentioning

confidence: 99%

Ocean Bottom Seismometer: Design and Test of a Measurement System for Marine Seismology

Mànuel

Roset

Río

et al. 2012

Sensors

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The Ocean Bottom Seismometer (OBS) is a key instrument for the geophysical study of sea sub-bottom layers. At present, more reliable autonomous instruments capable of recording underwater for long periods of time and therefore handling large data storage are needed. This paper presents a new Ocean Bottom Seismometer designed to be used in long duration seismic surveys. Power consumption and noise level of the acquisition system are the key points to optimize the autonomy and the data quality. To achieve our goals, a new low power data logger with high resolution and Signal–to-Noise Ratio (SNR) based on Compact Flash memory card is designed to enable continuous data acquisition. The equipment represents the achievement of joint work from different scientific and technological disciplines as electronics, mechanics, acoustics, communications, information technology, marine geophysics, etc. This easy to handle and sophisticated equipment allows the recording of useful controlled source and passive seismic data, as well as other time varying data, with multiple applications in marine environment research. We have been working on a series of prototypes for ten years to improve many of the aspects that make the equipment easy to handle and useful to work in deep-water areas. Ocean Bottom Seismometers (OBS) have received growing attention from the geoscience community during the last forty years. OBS sensors recording motion of the ocean floor hold key information in order to study offshore seismicity and to explore the Earth’s crust. In a seismic survey, a series of OBSs are placed on the seabed of the area under study, where they record either natural seismic activity or acoustic signals generated by compressed air-guns on the ocean surface. The resulting data sets are subsequently used to model both the earthquake locations and the crustal structure.

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Contributions to model characterization of geophone sensor

Cited by 8 publications

References 6 publications

Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement

Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement

Modeling of an electromagnetic geophone with passive magnetic spring

Ocean Bottom Seismometer: Design and Test of a Measurement System for Marine Seismology

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