A reliability study of light refractive tomography utilized for noninvasive measurement of ultrasound pressure fields

Light refractive tomography is an optical measurement technique that is able to provide absolute sound pressure values in specified volumes. Because of the simplicity of the measurement principle as well as the compactness of the measurement setup, light refractive tomography offers higher measurement performance and fewer error sources than light diffraction tomography. In this contribution, a numerically simulated ultrasound pressure field is exploited to determine the experimental parameters and to analyze the error sources as well as their influences on final results. After that, several ultrasound transducers excited with 1 MHz signals are investigated. The light refractive tomography results show good agreement with hydrophone measurements. Finally, we reconstruct 2000 transient states of the ultrasound pressure field within a volume of about 38 cm3 after sending the burst signal. Without applying any smoothing to the resulting images, the reconstructed pressure field varies continuously in both spatial and temporal dimensions.

[1]  X. Jia,et al.  Interferometric detection of finite-amplitude ultrasonic waves , 1994, 1994 Proceedings of IEEE Ultrasonics Symposium.

[2]  Circular ultrasonic transducer characterization:theoretical and experimental results , 2003 .

[3]  C. Koch,et al.  Primary calibration of hydrophones with extended frequency range 1 to 70 MHz using optical interferometry , 1999, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[4]  G. Kino.  Acoustic waves : devices, imaging, and analog signal processing , 1987 .

[5]  Stefan Lindner,et al.  Interferometrische Messung und Visualisierung von Schallwellen und Turbulenzen (Interferometric Measurement and Visualisation of Acoustic Waves and Vortexes) , 2002 .

[6]  R. Bracewell.  The Fourier Transform and Its Applications , 1966 .

[7]  H. Ermert,et al.  Refraction and time of flight corrections in 3D ultrasound computed tomography , 2010, 2010 IEEE International Ultrasonics Symposium.

[8]  A. McNab,et al.  Ultrasonic field measurement in test cells combining the acousto-optic effect, laser interferometry and tomography , 2004, IEEE Ultrasonics Symposium, 2004.

[9]  H. Ermert,et al.  A high-frequency ultrasound imaging system combining limited-angle spatial compounding and model-based synthetic aperture focusing , 2011, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[10]  G. Quentin,et al.  Optical heterodyne detection of pulsed ultrasonic pressures , 1993, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[11]  M. Unser,et al.  Interpolation revisited [medical images application] , 2000, IEEE Transactions on Medical Imaging.

[12]  Remenieras,et al.  Characterization of airborne transducers by optical tomography , 2000, Ultrasonics.

[13]  O. Matar,et al.  Acoustic pressure measurement by acousto-optic tomography , 2001, 2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263).

[14]  Piotr Kwiek,et al.  Uncertainty considerations of ultrasonic field mapping by light-diffraction tomography , 1997 .

[15]  David W. Griffith,et al.  Observation of Raman–Nath optical diffraction in the phase grating plane , 1982 .

[16]  Lindstrom,et al.  High resolution light diffraction tomography: nearfield measurements of 10 MHz continuous wave ultrasound , 1999, Ultrasonics.

[17]  D. R. Bacon,et al.  Primary calibration of ultrasonic hydrophone using optical interferometry , 1988, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[18]  F. Patat,et al.  Mapping of airborne ultrasonic fields using optical heterodyne probing and tomography reconstruction , 2000, 2000 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.00CH37121).

[19]  Quantitative measurement of ultrasonic pressures with an optical heterodyne interferometer , 1991, IEEE 1991 Ultrasonics Symposium,.

[20]  Manfred Kaltenbacher.  Advanced simulation tool for the design of sensors and actuators , 2010 .

[21]  R. Lerch,et al.  Beam profile measurements using light refractive tomography , 2008, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[22]  Bernhard G. Zagar,et al.  Acoustic Microscopy Technique to Precisely Locate Layer Delamination , 2007, IEEE Transactions on Instrumentation and Measurement.

[23]  Andy R Harland,et al.  Nonperturbing measurements of spatially distributed underwater acoustic fields using a scanning laser Doppler vibrometer. , 2004, The Journal of the Acoustical Society of America.

[24]  G. Harvey,et al.  Noninvasive field measurement of low-frequency ultrasonic transducers operating in sealed vessels , 2006, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.