Results 281 to 290 of about 1,828,003 (344)
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Simulations of ultrasonic fields of radial ultrasonic array

Ultrasound, 2007
Objective of this study was to develop an ultrasound probe small enough (diameter – less then 10mm, length less then 6mm) The probe must send and receive signals in 360 degrees, obtaining in this way the information needed for the software to generate a 2D image.
E. Jasiūnienė, R. Kažys, L. Mažeika
openaire   +1 more source

3D-Printed Integrated Ultrasonic Microneedle Array for Rapid Transdermal Drug Delivery.

Molecular Pharmaceutics, 2022
Transdermal drug delivery (TDD) is an attractive alternative to oral and hypodermic injection drug administration, and is poised to increase its impact on medicine and pharmaceutical design.
Zi‐Yi Chen   +6 more
semanticscholar   +1 more source

Measurement of Elastic Constant Matrix of Carbon Fiber Composites With an Ultrasonic 2D-Array Transducer

IEEE Sensors Journal, 2022
The use of carbon fiber reinforced polymer (CFRP) composites is gaining popularity in various industries. Due to its anisotropic nature, the characterization of the mechanical properties of CFRP is challenging.
Voon‐Kean Wong   +8 more
semanticscholar   +1 more source

Self-localization with ultrasonic sensor array

2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008
We have developed a positioning system that uses a phased array sensor to measure the distance and direction of multiple landmarks relative to the position of a mobile robot so that the robot can self-localize. The positioning system can control the strength and the width of the beam from the phased array sensor and observe the multiple landmarks at ...
Yukihiko Ono   +5 more
openaire   +1 more source

Robot guidance using ultrasonic arrays

Journal of Robotic Systems, 1994
AbstractThe flexibility of robots can be considerably increased by having sensors that can detect the location and orientation of the components that are being manipulated by the robots. Vision systems have been widely applied to this problem, but there has been very little reported work on the use of ultrasonic sensors. This article reports the use of
Philip Webb, Ian Gibson, Catherine Wykes
openaire   +1 more source

A Stretchable and Wearable Ultrasonic Transducer Array for Bladder Volume Monitoring Application

IEEE Sensors Journal
Monitoring bladder volume is an essential application for patients with voiding dysfunction. Current wearable ultrasonic bladder monitors are rigid, bulky, and cannot conform to human skin.
Cong Pu   +4 more
semanticscholar   +1 more source

Experimental analysis of surface detection methods for two‐medium imaging with a linear ultrasonic array

Ultrasonics, 2019
HighlightsSurface detection methods are compared.Two‐medium imaging with a linear ultrasonic array is executed in less than 100 ms on a CPU.A fast search for the fastest path is presented.
M. Matuda, F. Buiochi, J. Adamowski
semanticscholar   +1 more source

Flexible and Stretchable Ultrasonic Transducer Array Conformed to Complex Surfaces

IEEE Electron Device Letters, 2021
In this work, a flexible and stretchable ultrasonic transducer array consisting of $3\times3$ elements is proposed to achieve conformal contact with various nonplanar complex surfaces.
Wei Liu, Chun-ling Zhu, Dawei Wu
semanticscholar   +1 more source

ELECTRONIC ARRAY PROBE FOR ULTRASONIC IMAGING

The Journal of the Acoustical Society of America, 2010
An electronic array probe for ultrasonic imaging includes an array of transmitting and/or receiving electroacoustic transducers arranged in concentric bands in which the transducers are tangent to one other in both radial and circumferential directions.
openaire   +1 more source

Transducer arrays in medical ultrasonics

The Journal of the Acoustical Society of America, 1978
Ultrasonic instrumentation based on linear and phased array transducers is increasingly being used in clinical diagnosis and yields information not hitherto available. However, the use of ultrasonic arrays is not necessarily restricted to diagnosis. They may, in the future, play an important role in therapy as well.
openaire   +1 more source

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