multiple angles and combining displacements measured along the different beam directions. In this paper, we investigate beamsteering as a way to estimate the full 3D displacement vector over a volume, using a simulated 2D array to steer both laterally and elevationally. With simulated and in vitro data, we

potential benefits in the field of ultrasonics. The system is primarily targeted at underwater sonar and non-destructive testing, as defined by the current excitation frequency, but the concept is equally applicable to applications in biomedical ultrasound. Keywords-component; 2D array; microelectronics

ABSTRACT. This paper documents the development of a scalable 2D array system, or Mosaic that can be targeted at a wide range of NDT applications by way of a reconfigurable tile that can be tessellated to form arrays of any size and shape. Close coupling permits utilization of excitation voltages

Monitoring structural integrity of large planar structures that aims at detecting and localizing impact or damage at any point of the structure requires normally a relatively dense network of uniformly distributed ultrasonic sensors. 2-D ultrasonic phased arrays, due to their beam

Abstract. A theoretical model is suggested which describes quantum dot ensembles of the new type, namely the quantum dot arrays with defects. These defects represent local violations of the geometry of 2D arrays formed by quantum dots on crystalline substrates. The elastic moduli of strained arrays

2D arrays, also called matrix arrays, have recently appeared on the market providing key advantages to improve inspection methods and results. In particular, point focus ability, tilt and skew angle scanning are both promising features that new electronic equipment makers are promoting. Volume

For implementing 3D imaging in cardiac ultrasound 2D phase steered arrays have been proposed. But due to the large channel count needed it is desirable to lower the number of active elements without loss in imaging quality. In this work we will present a technique for lowering the sidelobe levels

Front cover illustration: A conceptual rendering of a two cascaded 2D grid array frequency multipliers. The first one is a HBV based frequency tripler while the second is a polarisation separated Schottky diode based doubler. Printed by TeknologTryck, Göteborg

We have used time resolved scanning Kerr microscopy to image collective spin wave modes within a 2D array of magnetic nanoelements. Long wavelength spin waves are confined within the array as if it was a continuous element of the same size but with effective material properties determined

rional array Rextenaional transducers that can be used to Abstmct-This paper presents micromachined two dimen-generate sound in air or water. Individual array elements consist of a thin piezoelectric ring and a thin, fully s u p ported, circular membrane. We report on an optimum de