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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mackersie, J.W. Timoshkin, I.V. MacGregor, S.J. |
| Copyright Year | 2004 |
| Description | Author affiliation: Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK (Mackersie, J.W.; Timoshkin, I.V.; MacGregor, S.J.) |
| Abstract | High power ultrasound (HPU) can be generated by the application of pulsed power technology to produce acoustic waves of high power and bandwidth. A study was conducted into the variation of the amplitude and frequency content of the acoustic signal with the applied voltage, pulse energy and electrode separation. Measurements indicate that, for a given electrode separation, whilst there is some increase in the amplitude of the detected acoustic emission with an increase in the electrical pulse energy it is only a modest effect. For a given pulse energy a considerably greater increase in the acoustic signal is observed when the distance between the electrodes is extended-thereby increasing the size of the signal source. The maximum amplitude of the detected signal approximately varies as the electrode separation to the power of 2/3. At large separations the delay time between the application of the voltage pulse and the breakdown of the water is considerable thus allowing energy loss through ionic conduction in the water. |
| Starting Page | 458 |
| Ending Page | 461 |
| File Size | 696527 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780385861 |
| DOI | 10.1109/MODSYM.2004.1433612 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-05-23 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ultrasonic imaging Acoustic applications Acoustic pulses Electrodes Acoustic emission Pulse measurements Acoustic signal detection Breakdown voltage Power generation Pulse generation |
| Content Type | Text |
| Resource Type | Article |
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