Ionoacoustic application of an optical hydrophone to detect proton beam range in water.
Sign Up to like & getrecommendations! Published in 2022 at "Medical physics"
DOI: 10.1002/mp.16189
Abstract: BACKGROUND Proton range uncertainty has been the main factor limiting the ability of proton therapy to concentrate doses to tumors to their full potential. Ionoacoustic (IA) range verification is an approach to reducing this uncertainty… read more here.
Keywords: beam; beam range; proton beam; range ... See more keywords
Characterization and imaging of a hydrothermally active near-vertical fault zone in crystalline rocks based on hydrophone VSP data
Sign Up to like & getrecommendations! Published in 2019 at "Tectonophysics"
DOI: 10.1016/j.tecto.2018.11.015
Abstract: Abstract A shallow, hydrothermally active, fault zone embedded in fractured crystalline rocks of the Central Swiss Alps has been drilled and geophysically explored in view of its potential analogies to planned petrothermal reservoirs in the… read more here.
Keywords: fault zone; hydrothermally active; hydrophone; fault ... See more keywords
A bionic micro-electromechanical system piezo-resistive vector hydrophone that suppresses vibration noise
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Micromechanics and Microengineering"
DOI: 10.1088/1361-6439/ab3dd1
Abstract: For piezo-resistive sensors have outstanding low-frequency response, micro-electro-mechanical system (MEMS) piezo-resistive vector hydrophones play an important role in low-frequency sound waves measurements. However, their signal-noise ratio (SNR) can be decreased by vibration noise. The conventional… read more here.
Keywords: vibration noise; piezo resistive; vibration; resistive vector ... See more keywords
Directional hydrophone clusters reveal evasive responses of small cetaceans to disturbance during construction at offshore windfarms
Sign Up to like & getrecommendations! Published in 2023 at "Biology Letters"
DOI: 10.1098/rsbl.2022.0101
Abstract: Mitigation measures to disperse marine mammals prior to pile-driving include acoustic deterrent devices and piling soft starts, but their efficacy remains uncertain. We developed a self-contained portable hydrophone cluster to detect small cetacean movements from… read more here.
Keywords: hydrophone clusters; construction offshore; directional hydrophone; hydrophone ... See more keywords
Low-Frequency Fiber Optic Hydrophone Based on Ultra-Weak Fiber Bragg Grating
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2023.3266357
Abstract: A winding low-frequency hydrophone based on ultra-weak fiber Bragg grating (UWFBG) was studied. Through analyzing the hydrophone principle and sensitivity factors, such as the material, radius, and thickness of the elastic cylindrical shell, the probe… read more here.
Keywords: inline formula; hydrophone; fiber; tex math ... See more keywords
On the Importance of Consistent Insonation Conditions During Hydrophone Calibration and Use
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3205851
Abstract: Hydrophones are generally calibrated in acoustic fields with temporally localized (short pulse) or long duration (tone burst) signals. Free-field conditions are achieved by time gating any reflections from the hydrophone body, mounting structures, and surrounding… read more here.
Keywords: tone; calibration; tone burst; active element ... See more keywords
Hydrophone Measurements for Biomedical Ultrasound Applications: A Review
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3213185
Abstract: This article presents basic principles of hydrophone measurements, including mechanisms of action for various hydrophone designs, sensitivity and directivity calibration procedures, practical considerations for performing measurements, signal processing methods to correct for both frequency-dependent sensitivity… read more here.
Keywords: biomedical ultrasound; hydrophone measurements; measurements biomedical; applications review ... See more keywords
Using vessel noise from a single hydrophone to estimate environmental properties
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.5014890
Abstract: This paper estimates seabed and water-column properties of a shallow-water site in the Chukchi Sea using vessel noise recorded on a single ocean-bottom hydrophone. A shallow-hazards seismic survey vessel transited with a fixed heading, passing… read more here.
Keywords: estimate; vessel noise; hydrophone; using vessel ... See more keywords
Three-component homovibrational vector hydrophone based on fiber Bragg grating F-P interferometry.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.009195
Abstract: A fiber optic vector hydrophone is an interesting topic for many applications. Using a fiber Bragg grating (FBG) as a reflection unit, the vector hydrophone combines the advantages of miniaturization, high reliability, and low cost.… read more here.
Keywords: vector; fiber bragg; vector hydrophone; bragg grating ... See more keywords
Analysis and Simulation of Morphology Algorithm for Fiber Optic Hydrophone Array in Marine Seismic Exploration
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Coastal Research"
DOI: 10.2112/si94-029.1
Abstract: ABSTRACT Zhong, Z.-C. and Li, H.-Q., 2019. Analysis and simulation of morphology algorithm for fiber optic hydrophone array in marine seismic exploration. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal… read more here.
Keywords: hydrophone array; optic hydrophone; hydrophone; fiber optic ... See more keywords
Design and Implementation of a Composite Hydrophone of Sound Pressure and Sound Pressure Gradient
Sign Up to like & getrecommendations! Published in 2021 at "Micromachines"
DOI: 10.3390/mi12080939
Abstract: The bionic cilium MEMS vector hydrophone has the characteristics of low power consumption, small volume, and good low-frequency response. Nevertheless, there exists the problem of left–right ambiguity in the azimuth estimation of a single hydrophone.… read more here.
Keywords: sound pressure; pressure gradient; pressure sound; hydrophone ... See more keywords