The practicalities of obtaining and using hydrophone calibration data to derive pressure waveforms
AM Hurrell, S Rajagopal - IEEE Transactions on Ultrasonics …, 2016 - ieeexplore.ieee.org
This paper considers the means by which calibration data are used to convert hydrophone
output voltage into pressure. Hydrophone frequency responses are complex-valued …
output voltage into pressure. Hydrophone frequency responses are complex-valued …
Robust spot-poled membrane hydrophones for measurement of large amplitude pressure waveforms generated by high intensity therapeutic ultrasonic transducers
V Wilkens, S Sonntag, O Georg - The Journal of the Acoustical Society …, 2016 - pubs.aip.org
The output characterization of medical high intensity therapeutic ultrasonic devices poses
several challenges for the hydrophones to be used for pressure measurements. For …
several challenges for the hydrophones to be used for pressure measurements. For …
Using a heterodyne vibrometer in combination with pulse excitation for primary calibration of ultrasonic hydrophones in amplitude and phase
M Weber, V Wilkens - Metrologia, 2017 - iopscience.iop.org
A high-frequency vibrometer was used with ultrasonic pulse excitation in order to perform a
primary hydrophone calibration. This approach enables the simultaneous characterization of …
primary hydrophone calibration. This approach enables the simultaneous characterization of …
On the importance of consistent insonation conditions during hydrophone calibration and use
S Rajagopal, SP Robinson, J Ablitt… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Hydrophones are generally calibrated in acoustic fields with temporally localized (short
pulse) or long duration (tone burst) signals. Free-field conditions are achieved by time gating …
pulse) or long duration (tone burst) signals. Free-field conditions are achieved by time gating …
Complex-valued frequency response of hydrophones: Primary calibration and uncertainty evaluation
M Weber, V Wilkens - 2016 Ieee International Ultrasonics …, 2016 - ieeexplore.ieee.org
A vibrometer is used for hydrophone calibration in conjunction with ultrasonic nonlinear
pulse excitation. This enables the characterization of the amplitude and phase response of …
pulse excitation. This enables the characterization of the amplitude and phase response of …
[PDF][PDF] Erweiterung des Primärnormals für den Ultraschallwechseldruck und Verminderung der Kalibrierunsicherheiten
M Weber, V Wilkens - Aachen, Germany: Jahrestagung für …, 2016 - pub.dega-akustik.de
Um die Größe „Ultraschallwechseldruck in Wasser “darzustellen und weiterzugeben wird
ein Primärnormal benötigt. Dieses führt die physikalische Einheit des Wechseldrucks, das …
ein Primärnormal benötigt. Dieses führt die physikalische Einheit des Wechseldrucks, das …