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2008•Ultraschall in der Medizin - European Journal of UltrasoundRequires access

Experimentelle Untersuchungen der Schallfelder von Ultraschall-Breitbandwandlern

Norbert Leitgeb, S. Schuy, Franz Josef Holzer, Paul Wach, K. Richter, R. Millner

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Abstract

Quantitative analysis of ultrasonic signals, as increasingly practised, makes it necessary to increase the band width as well as the efficiency of ultrasonic transducers. An broad band ultrasonic transducer is presented which meets the requirements by double lambda/4 layer matching and was specially designed for medical ultrasonic spectroscopy. In an extended measurement programme transmitter characteristic, spatial dependence of the spectral content of the transmitter signals as well as beam geometry and its frequency dependence are investigated and compared with conventional transducers.

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What this paper is about

Quantitative analysis of ultrasonic signals, as increasingly practised, makes it necessary to increase the band width as well as the efficiency of ultrasonic transducers. An broad band ultrasonic transducer is presented which meets the requirements by double lambda/4 layer matching and was specially designed for medical ultrasonic spectroscopy. In an extended measurement programme transmitter characteristic, spatial dependence of the spectral content of the transmitter signals as well as beam geometry and its frequency dependence are investigated and compared with conventional transducers.

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Available abstract

Quantitative analysis of ultrasonic signals, as increasingly practised, makes it necessary to increase the band width as well as the efficiency of ultrasonic transducers. An broad band ultrasonic transducer is presented which meets the requirements by double lambda/4 layer matching and was specially designed for medical ultrasonic spectroscopy. In an extended measurement programme transmitter characteristic, spatial dependence of the spectral content of the transmitter signals as well as beam geometry and its frequency dependence are investigated and compared with conventional transducers.

Key concepts: Ultrasonic sensor, Transmitter, Transducer, Acoustics, Ultrasonic testing, Materials science, Optics, Physics

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Experimentelle Untersuchungen der Schallfelder von Ultraschall-Breitbandwandlern — Research Paper | ScholarLens