Seafloor exploration using a 4-element towed fiber optic hydrophone array

2011 ◽  
Author(s):  
Wei Rao ◽  
Nan Zhang ◽  
Siliang Niu ◽  
Chunyan Cao ◽  
Shuidong Xiong ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Hydrophone Array

STUDY OF ACOUSTIC ULTRA-HIGH ENERGY NEUTRINO DETECTION PHASE II

2006 ◽  
Vol 21 (supp01) ◽  
pp. 217-220 ◽  
Author(s):  
N. KURAHASHI
Keyword(s):  
Fiber Optic ◽  
High Energy ◽  
Second Phase ◽  
Ultra High Energy ◽  
Fiber Optic Cable ◽  
Future Plan ◽  
High Energy Neutrino ◽  
Neutrino Detection ◽  
Energy Neutrino ◽  
Hydrophone Array

The Study of Acoustic Ultra-high energy Neutrino Detection has started its second phase (SAUND II). Although the general location of the hydrophones has not changed, SAUND II uses a new hydrophone array that uses a fiber-optic cable to connect to shore. Changes associated with the new hydrophone array as well as a new DAQ system that incorporates multiprocessor computing and accurate GPS timestamping are reported. Initial data of lightbulb calibration conducted in March 2005, and a future plan for a more accurate calibration are also presented.

Thin Cable Fiber-Optic Hydrophone Array for Passive Acoustic Surveillance Applications

2019 ◽  
Vol 19 (9) ◽  
pp. 3376-3382 ◽  
Author(s):  
Mikhail Y. Plotnikov ◽  
Vladimir S. Lavrov ◽  
Pavel Y. Dmitraschenko ◽  
Andrey V. Kulikov ◽  
Igor K. Meshkovskiy
Keyword(s):  
Fiber Optic ◽  
Acoustic Surveillance ◽  
Passive Acoustic ◽  
Hydrophone Array ◽  
Surveillance Applications

Acoustic performance of a large-aperture, seabed, fiber-optic hydrophone array

2004 ◽  
Vol 115 (6) ◽  
pp. 2848-2858 ◽  
Author(s):  
G. A. Cranch ◽  
R. Crickmore ◽  
C. K. Kirkendall ◽  
A. Bautista ◽  
K. Daley ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Acoustic Performance ◽  
Large Aperture ◽  
Hydrophone Array

Experimental investigation of the thin fiber-optic hydrophone array based on fiber Bragg gratings

2017 ◽  
Vol 34 ◽  
pp. 47-51 ◽  
Author(s):  
Vladimir S. Lavrov ◽  
Mikhail Y. Plotnikov ◽  
Stanislav M. Aksarin ◽  
Mikhail E. Efimov ◽  
Vladimir A. Shulepov ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Fiber Optic ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Thin Fiber ◽  
Hydrophone Array

A wideband connection to sperm whales: A fiber-optic, deep-sea hydrophone array

2007 ◽  
Vol 54 (3) ◽  
pp. 428-436 ◽  
Author(s):  
Anders Heerfordt ◽  
Bertel Møhl ◽  
Magnus Wahlberg
Keyword(s):  
Deep Sea ◽  
Fiber Optic ◽  
Sperm Whales ◽  
Hydrophone Array

An all fiber optic borehole hydrophone array

1997 ◽  
Author(s):  
Bjorn Paulsson ◽  
John Fairborn ◽  
Robert Goldman ◽  
Brett Bunn ◽  
Donald Frederick
Keyword(s):  
Fiber Optic ◽  
Hydrophone Array

Imaging and diffraction modes in Scanning Transmission Electron Microscopy

1986 ◽  
Vol 44 ◽  
pp. 684-687
Author(s):  
J. M. Cowley ◽  
R. Glaisher ◽  
J. A. Lin ◽  
H.-J. Ou
Keyword(s):  
Scanning Transmission Electron Microscopy ◽  
High Efficiency ◽  
Fiber Optic ◽  
Image Intensifier ◽  
Detector System ◽  
Detector Plane ◽  
Secondary Electrons ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Special Detector

Some of the most important applications of STEM depend on the variety of imaging and diffraction made possible by the versatility of the detector system and the serial nature, of the image acquisition. A special detector system, previously described, has been added to our STEM instrument to allow us to take full advantage of this versatility. In this, the diffraction pattern in the detector plane may be formed on either of two phosphor screens, one with P47 (very fast) phosphor and the other with P20 (high efficiency) phosphor. The light from the phosphor is conveyed through a fiber-optic rod to an image intensifier and TV system and may be photographed, recorded on videotape, or stored digitally on a frame store. The P47 screen has a hole through it to allow electrons to enter a Gatan EELS spectrometer. Recently a modified SEM detector has been added so that high resolution (10Å) imaging with secondary electrons may be used in conjunction with other modes.

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