Shock-wave measurement using a calibrated interferometric fiber-tip sensor
✍ Scribed by Christian Koch; Walter Molkenstruck; Rainer Reibold
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 614 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0301-5629
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✦ Synopsis
The results of shock-wave measurements using a calibrated fiber-tip sensor based on a Michelson interferometer are presented. A transfer function, obtained by an independent experiment that describes the properties of the sensor system, was used to correct the measured shock-wave data in the Fourier frequency domain. The phase of the transfer function was determined from its amplitude by a fitting procedure using minimum-phase terms. As an example of application, the acoustic output field of an electromagnetic lithotriptor was investigated, and the shock-wave source was reliably characterized. The measured data provide a basis for estimating the hazard to which a patient is exposed during shock-wave treatment and for optimizing a lithotriptor system to produce a sharply localized and effective acoustic field. @ 1997 World Federation for Ultrasound in Medicine & Biology.