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Influence of Various Liquids on Characteristics of Backward A<sub>1</sub> Lamb Wave in YX LiNbO<sub>3</sub> Plate: Theory and Experiment. [PDF]
Sensors (Basel)Smirnov A, Nedospasov I, Kuznetsova I.
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Applications of Acoustic Waves in Micro-Droplet Technologies. [PDF]
Biosensors (Basel)Liu J +6 more
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SIAM Journal on Applied Mathematics, 2008
In this work we present a new hybrid imaging technique that combines electrical impedance tomography (EIT) with acoustic tomography. The novel technique makes use of the fact that the absorbed electrical energy inside the body raises its temperature, thus leading to expansion effects.
Bastian Gebauer, Otmar Scherzer
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In this work we present a new hybrid imaging technique that combines electrical impedance tomography (EIT) with acoustic tomography. The novel technique makes use of the fact that the absorbed electrical energy inside the body raises its temperature, thus leading to expansion effects.
Bastian Gebauer, Otmar Scherzer
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Tympanometry and Acoustic Impedance
Acta Oto-Laryngologica, 1977In recordings of the acoustic impedance of the middle ear (tympanometry) the change in air pressure in the ear canal will mostly influence the capacitive component of the acoustic impedance. By choosing a probe tone frequency close to the resonance frequency of the middle ear, characteristic tympanometric patterns can be demonstrated in certain middle ...
G, Lidén +3 more
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Investigative Radiology, 1969
A technique is described for measuring directly the acoustic impedance of tissue, and experimental results are reported for normal and abnormal post-mortem mammalian tissue as well as various live tissue at 5 MHz.
E C, Gregg, G L, Palagallo
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A technique is described for measuring directly the acoustic impedance of tissue, and experimental results are reported for normal and abnormal post-mortem mammalian tissue as well as various live tissue at 5 MHz.
E C, Gregg, G L, Palagallo
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Acoustic Impedance Transformation
Archives of Otolaryngology - Head and Neck Surgery, 1987To the Editor .—I read with interest Dr Goode's 1 commentary on the potential for otosurgery to transform "tin" ears into "gold" ears. The author asserts that our conventional beliefs about the middle ear performing acoustic impedance transformation between the atmosphere and the inner ear may be incorrect.
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Acoustic impedance of the maternal abdomen
The Journal of the Acoustical Society of America, 1993Contact sensors to monitor fetal heart, breathing, and movement sounds with increased sensitivity and bandwidth are under development. To understand the inherent acoustical properties of the maternal abdomen and its interaction with these sensors, the driving-point impedance Z(jω) was measured in nine women during their last trimester of pregnancy.
G R, Wodicka +3 more
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Acoustic Neuromas and the Acoustic Impedance of the Ear
Journal of Speech and Hearing Disorders, 1973The acoustic impedance at the tympanic membrane was measured at frequencies in the range 100–1000 Hz and found to be abnormal on the affected side in four patients with acoustic neuroma. In all four the resistance was abnormally high at low frequencies on the affected side, and in three the reactance of the affected ear was raised relative to that of ...
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A Method of Measuring Acoustic Impedance
The Journal of the Acoustical Society of America, 1932An apparatus s described whereby acoustic impedances may be measured in terms of a known acoustic impedance and the complex ratios of two electrical potentiometer readings to a third. As a known impedance, there is chosen the reactance of a closed tube of uniform bore which is an eighth wave-length long.
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