Cowell, D orcid.org/0000-0003-0854-542X, Carpenter, T orcid.org/0000-0001-5676-1739, Fisher, B et al. (1 more author) (2017) In-situ Measurement of Transducer Impedance using AFE Active Termination through Analysis of Ultrasound Echoes. In: Proceedings of the 2017 IEEE International Ultrasonics Symposium (IUS). 2017 IEEE International Ultrasonics Symposium (IUS), 06-09 Sep 2017, Washington, DC, USA. IEEE ISBN 978-1-5386-3384-7
Abstract
Measurement of transducer impedance in ultrasound systems indicates both the performance of a transducer and the presence of damaged elements and cables. Load impedance analysis is typically performed with dedicated test equipment and is a time consuming and thus expensive process, especially for high channel count systems. This paper proposes a method for the measurement of channel source impedance (transducer, coaxial cable and T/R switch) through the use of an integrated receiver analogue front end with configurable termination resistance. The proposed method is first demonstrated using a pitch-catch configuration using a separate source transducer to excite the transducer under test. Subsequently the method is demonstrated the Ultrasound Array Research Platform (UARP) and a linear array transducer in a pulse echo mode where the transducer impedance is determined through the analysis of two ultrasound echoes. The proposed method is especially suited to rapid transducer testing in the field, such as in a hospital, or where access to the transducer is not possible as in many industrial processes.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Impedance; Transducers; Impedance measurement; Ultrasonic variables measurement; Ultrasonic imaging; Voltage measurement; Frequency measurement |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Feb 2020 14:14 |
Last Modified: | 08 Feb 2020 11:50 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/ULTSYM.2017.8092162 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:156528 |