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You searched on: Author: steven fick

Displaying records 21 to 23.
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21. Ultrasound Power Measurement Techniques at NIST
Published: 11/12/1995
Author: Steven Earl Fick
Abstract: Megahertz-frequency sound waves with submillimeter wavelengths are widely used to probe the interior regions of many types of structures. When human tissues are exposed to ultrasound for diagnostic or therapeutic purposes, the applied power levels m ...

22. Transient Analysis of a Line-focus Transducer Probing a Liquid/Solid Interface
Published: 1/1/1995
Authors: Nelson N. Hsu, Gerald V. Blessing, Steven Earl Fick, D Xiang
Abstract: The use of a line-focus transducer operating in pulse-echo mode to probe a liquid/solid interface is a new technique which has many engineering applications. To provide a theoretical basis for multi-echo analysis and interpretation, we use numerical ...

23. An Ultrasonic Absolute Power Transfer Standard
Published: 3/1/1984
Authors: Steven Earl Fick, Donald G Eitzen, Carl E Tschiegg, Franklin R Breckenridge
Abstract: In response to increased interest in the use of calibrated sources of ultrasonic energy, we have developed a system comprising components grouped to facilitate the accurate transfer of calibration. Electronic circuitry supplied with and built into ea ...

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