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Now showing items 31-40 of 143
Micromachinable leaky wave air transducers
(IEEE, 1997-11)
In this paper, ultrasonic air transducers which use the lowest order antisymmetric (A/sub 0/) mode Lamb waves in a thin plate as a means of efficient coupling of ultrasonic energy to air are discussed. For a silicon plate ...
A novel approach to 3-dimensional holographic television display: principles and simulations
(IEEE, 1992-03)
The authors present a new technique for the display end of a holographic three-dimensional television system and describe the computer simulations. The technique is based on the reproduction of the desired pattern, in this ...
Optimization of the gain-bandwidth product of capacitive micromachined ultrasonic transducers
(IEEE, 2005-12)
Capacitive micromachined ultrasonic transducers (cMUT) have large bandwidths, but they typically have low conversion efficiencies. This paper defines a performance
measure in the form of a gain-bandwidth product and ...
Parallel atomic force microscopy with optical interferometric detection
(American Institute of Physics, 2001-01-05)
We have developed an atomic force microscope that uses interferometry for parallel readout of a cantilever array. Each cantilever contains a phase sensitive diffraction grating consisting of a reference and movable set of ...
High-speed tapping mode imaging with active Q control for atomic force microscopy
(American Institute of Physics, 2000)
The speed of tapping mode imaging with the atomic force microscope(AFM) has been increased by over an order of magnitude. The enhanced operation is achieved by (1) increasing the instrument’s mechanical bandwidth and (2) ...
An analytical approach to the design of multiple mode rectangular cavity waveguide filters
(Institute of Electrical and Electronics Engineers Inc., 2017)
The multiple mode rectangular cavity structure with square corner cuts is revisited. An attempt to predict the physical dimensions of the cavity for dual mode second-order and triple mode third-order filters is made. ...
Transient analysis of nonlinear circuits by combining asymptotic waveform evaluation with volterra series
(Institute of Electrical and Electronics Engineers, 1995-08)
A new method is proposed for the transient analysis of
circuits with large number of linear lumped elements and lossy coupled
transmission lines, and with few mildly nonlinear terminations. The
method combines the ...
New high-resolution display device for holographic three-dimensional video: principles and simulations
(SPIE, 1994)
A new acousto-optical holographic display device, which is expected
to solve the display resolution and refresh problems that are common
to available holographic displays, is proposed. The device is based
on the ...
Microfabricated ultrasonic transducers: towards robust models and immersion devices
(IEEE, 1996-11)
The successful fabrication of ultrasonic immersion transducers is reported. Transducers are observed to operate from 1 MHz to 20 MHz in water, with the frequency range limited by electronics, not the transducers. Transmission ...
Circuit theoretical method for efficient finite element analysis of acoustical problems
(IEEE, 1998)
In the last decade, there has been an outstanding improvement in the computer aided design tools for VLSI circuits regarding solution times and the circuit complexity. This study proposes formulating the acoustic field ...