In order to handle the inherent complexity of the multitude of available different transducer components, a generic interface approach is necessary. Such a universal smart transducer interface should provide precisely defined interfaces between smart transducers and their users, which are simple and precisely specified within the value domain and the temporal domain. The Object Management Group...

Acknowledgments First of all I would like to thank my supervisor Prof. Dr. Hermann Kopetz for his support and advice on my work. As head of the Institute of Computer Engineering he provided me with the fruitful environment of our research group and the resources that were necessary to write this habilitation thesis. for proofreading and comments on the introduction. All remaining mistakes are m...

The received electrical signal from a pulse-echo system insoni'ing a planar acoustical interface was measured for varying degrees of rms roughness (0 0.16 mm), angle of incidence (typically +/-7'/ and range to the transducer. A planar and a focused 5 MHz transducer was used. When insonifying a smooth interface, the normalized spectrum of the received signals for a planar transducer exhibits an ...

Introduction: Acoustic Radiation Force Impulse (ARFI) Quantification measures shear wave velocities (SWVs) within the liver. It is a reliable method for predicting the severity of liver fibrosis and has the potential to assess fibrosis in any part of the liver, but previous research has found ARFI quantification in the right lobe more accurate than in the left lobe. A lack of standardised appli...

The surgical rehabilitation of mixed hearing losses can be performed by coupling the floating mass transducer of the Vibrant Soundbridge to the round window. The quality of coupling the floating mass transducer to the round window is crucial for the audiological outcome. It was the aim of this study to further observe the different patterns of floating mass transducer position at the round wind...

ed from: Figliola, R.S. and Beasley, D. S., 1991, “Theory and Design for Mechanical Measurements” GENERAL MEASUREMENT SYSTEM Assigning a specific value to a physical variable is done with the help of a measurement system. Once a value has been assigned to a physical variable it becomes known as a measured value. There are four stages to the process of assigning a value to a physical variable. G...

We present a lateral cavity acoustic transducer (LCAT) capable of pumping and mixing fluids within a microfluidic system using an acoustic energy source from an external piezoelectric buzzer. The device is capable of pumping at flow rates of approximately 250 nl min(-1) and real-time mixing in low flow rate (<1 microl min(-1)) devices typical in microfluidic systems.