Measuring and testing – Vibration – Sensing apparatus
Reexamination Certificate
2007-10-16
2007-10-16
Williams, Hezron (Department: 2856)
Measuring and testing
Vibration
Sensing apparatus
C073S299000, C250S227250, C367S149000
Reexamination Certificate
active
10535804
ABSTRACT:
An optical hydrophone for measurement of the acoustic pressure distribution in a fluid medium has a light source that illuminates an area of a boundary region between an optically transparent body and the fluid medium. A light receiver measures the intensity of the light reflected from the illuminated area as a measurement of acoustic pressure, due to changes in the index of refraction of the fluid medium that are caused by the acoustic pressure. The illuminated area is smaller than the boundary surface formed between the optically transparent body and the fluid medium, thereby giving the hydrophone a longer service light and a high spatial resolution capacity.
REFERENCES:
patent: 3611277 (1971-10-01), Yoder
patent: 4471474 (1984-09-01), Fields
patent: 5010248 (1991-04-01), Eisenmenger et al.
patent: 5017775 (1991-05-01), Granz et al.
patent: 5315364 (1994-05-01), Arion et al.
patent: 5353262 (1994-10-01), Yakymyshyn et al.
patent: 5488853 (1996-02-01), Niewisch et al.
patent: 5636181 (1997-06-01), Duggal
patent: 5732046 (1998-03-01), O'Donnell et al.
patent: 6172376 (2001-01-01), Xu et al.
patent: 6517512 (2003-02-01), Bock et al.
patent: 6538739 (2003-03-01), Visuri et al.
patent: 6594290 (2003-07-01), Toida
patent: 7057973 (2006-06-01), Ferrell
patent: 2006/0241495 (2006-10-01), Kurtz
patent: 38 02 024 (1989-08-01), None
patent: 39 32 711 (1991-04-01), None
patent: 195 41 952 (1997-05-01), None
patent: 197 41 747 (1998-08-01), None
patent: 197 08 806 (1998-09-01), None
patent: WO89/06512 (1989-07-01), None
“Fibre-Optic Probe Hydrophone for Ultrasonic and Shock-wave Measurements in Water,” Staudenraus et al., Ultrasonics, vol. 31, No. 4 (1993) pp. 267-273.
“Coated Fiber-Optic Hydrophone for Ultrasonic Measurement,” Koch, Ultrasonics, vol. 34, (1996) pp. 687-689.
An Optical Detection System for Biomedical Photoacoustic Imaging, Beard et al., Proc. SPIE 3916 (2000) pp. 100-109.
Photoacoustic Imaging of Blood Vessel Equivalent Phantoms, Beard, Proc. SPIE 4618 (2002), pp. 54-62.
“Measurement of Laser-Induced Acoustic Waves with a Calibrated Optical Transducer,” Paltauf et al., J. Appl. Phys., vol. 82, No. 4, Aug. 15, 1997, pp. 1525-1531.
“Novel Technique of Interferometric Optical Fiber Sensing,” Shelyakov et al., SPIE, vol. 2349 (1995), pp. 154-157.
Granz Bernd
Nanke Ralf
Saint-Surin Jacques M.
Schiff & Hardin LLP
Siemens Aktiengesellschaft
Williams Hezron
LandOfFree
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