Acoustic Beam Forming Using Ultrasonic Transducers
نویسندگان
چکیده
منابع مشابه
Acoustic Beam Modeling of Ultrasonic Transducers and Arrays Using the Impulse Response and the Discrete Representation Methods
The impulse response of the velocity potential and the discrete representation methods were used in order to model the acoustic field radiated by ultrasonic transducers and arrays. The first method deals with the calculation of the exact impulse response, in which solutions are possible only for simple geometries, such as the circular piston. The second method is an approximated solution based ...
متن کاملMathematical modeling of the radiated acoustic field of ultrasonic transducers
Ultrasonic inspection techniques are widely used for nondestructive evaluation of materials. Mathematical modeling provides an efficient and reliable method to assist the design of the inspection application and the analysis of its results. In this work we use a method based on the Rayleigh-Sommerfeld integral to express the pressure in a fluid generated by different ultrasonic devices like mon...
متن کاملFeature-based localization using fixed ultrasonic transducers
We describe an approach for mobile robot localization based on geometric features extracted from ultrasonic data. As is well known, a single sonar measurement using a standard POLAROIDTM sensor, though yielding relatively accurate information regarding the range of a reflective surface patch, provides scant information about the location in azimuth or elevation of that patch. This lack of suffi...
متن کاملBroadband gradient impedance matching using an acoustic metamaterial for ultrasonic transducers
High-quality broadband ultrasound transducers yield superior imaging performance in biomedical ultrasonography. However, proper design to perfectly bridge the energy between the active piezoelectric material and the target medium over the operating spectrum is still lacking. Here, we demonstrate a new anisotropic cone-structured acoustic metamaterial matching layer that acts as an inhomogeneous...
متن کاملUltrasonic beam models for the generation of surface waves and plate waves with angle beam transducers
A new transducer beam model is developed for the generation of Rayleigh surface wave and Lamb plate waves by an angle beam transducer, which is one of the configurations commonly used for the generation of these wave types. The beam model is a fully 3-D model that takes into account the fields generated by the transducer acting on the surface of a wedge. The model also accounts for the leaky wa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advanced Engineering Forum
سال: 2012
ISSN: 2234-991X
DOI: 10.4028/www.scientific.net/aef.4.238