... (below 100 kHz). Keywords: Ultrasound, optical microphone, MEMS 1. INTRODUCTION Conventional laboratory style measurement microphones are problematic for gathering reliable measurements in the low ultrasonic frequency range (20 100 kHz). High frequency sensitivity is often limited by a microphone s...

... and for sizing the deformities almost 60% accuracy was obtained. 35° and 45° shear waves gave 72% and 43% accurate data respectively. nondestructive evaluation deformity sizing ACT ADDT echo amplitude shear wave normal wave ultrasound Proceedings of the ASME 2022 International Mechanical...

...-section. The parameters utilized for conventional ultrasound techniques were a 5 MHz frequency, a velocity of 0.2320 in/μs and a gain of 30 dB. In phase angle mode, an angle of 45 was utilized. These parameters were optimized and chosen for the calibration of the device with a section of the parent rail...

... and sensor performance are reported. sensors ultrasound Proceedings of the ASME 2022 International Mechanical Engineering Congress and Exposition IMECE2022 October 30-November 3, 2022, Columbus, Ohio IMECE2022-96139 MICROSCOPIC OPTICAL ACOUSTIC SENSORS FOR INTRACRANIAL MEASUREMENTS David B. Maupin1...

... AlSi10Mg ultrasound Proceedings of the ASME 2022 International Mechanical Engineering Congress and Exposition IMECE2022 October 30-November 3, 2022, Columbus, Ohio IMECE2022-96236 ULTRASONIC CHARACTERIZATION OF ALSI10MG SPECIMENS PRINTED BY DIRECT ENERGY DEPOSITION TECHNOLOGY Mariya Chukovenkova...

... for the development of ultrasonic phased array technique for non-destructive evaluation (NDE) of bulky materials. This paper ends with a summary, concluding remarks, and suggestions for future work. nondestructive evaluation damage detection ultrasound phased array reverse time migration Proceedings...

... experience high-amplitude vibrations in response to ultrasonic excitation. These methods and results are useful for assessing how a wide variety of devices, including communications equipment, might produce biological effects. ultrasound modal analysis finite element model Proceedings of the ASME...

... of these alternative means. Cryosurgery has been used successfully for more than three decades to treat benign and malignant neoplasms. To date, there is one reported case of primary breast cancer treatment with cryotherapy (Staren et al., 1997), which was followed up with ultrasound-guided biopsy, and which was found...

... components of the middle and inner ear at ultrasonic frequencies. These “built-in sound amplifiers” can be leveraged to compensate for impedance mismatches experienced in airborne ultrasound transmission. By heterodyning (amplitude modulating) a targeted ultrasonic carrier signal with an audio signal...

... Abstract This paper presents the innovative integration of both frontier submillimeter magnetic microrobot and integrated ultrasound and photoacoustic (USPA) imaging. The integrative technique will allow for potential real non-invasive microrobot operation in deep biological tissue...

..., and to reduce the necessity for performing it, ultrasound elastography was proposed. Elastography is a potential imaging technique to characterize breast masses, and to differentiate malignant from benign lesions, based on imaging estimated tissue strains under compression. This can result in lowering...

... 08 07 2010 Ultrasound based on-line cleaning for hollow fiber (HF) membrane filtration of synthetic wastewater was studied. An ultrasonic transducer was submerged into a filtration system in order to get an efficient cleaning of HF membranes in fouling conditions. An ultrafiltration...

... Ultrasound based on-line cleaning for hollow fiber (HF) membrane filtration of synthetic wastewater was studied. An ultrasonic transducer was submerged into a filtration system in order to get an efficient cleaning of HF membranes in fouling conditions. An ultrafiltration (UF) HF membrane...

... in the material and to distinguish special cases of the prestress state, for example, to evaluate quantitatively the parameters of the prestress. ultrasound wave interaction nonlinearity inhomogeneous prestress NDE N E A cs ch m fa in physically nonlinear elastic material undergoing two- para anal...

... fractions of microballoons and rubber particles are maintained at 0.63 and 0.02, respectively, in all samples. Pulse Echo ultrasonic test method is used and results are compared to determine the effect of constituent particles on the ultrasound signal attenuation. Coefficient of attenuation is observed...

.... In this work, we report on a novel porous polymer fabrication method using high-intensity focused ultrasound (HIFU). The measurements of both spatial and temporal temperature field are reported for biocompatible PMMA (polymethyl methacrylate) samples insonated with a 1.1 MHz/3.3 MHz HIFU transducer...