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Effects of parasitic electrical components on an ultrasound system: measurements and simulations using SPICE models
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0003-4958-146X
2003 (English)In: Transducing Materials and Devices: Transducing Materials and Devices / [ed] Yoseph Bar-Cohen, Bellingham, Wash.: SPIE - International Society for Optical Engineering, 2003, p. 174-182Conference paper, Published paper (Refereed)
Abstract [en]

When driver and receiver electronics for an ultrasound measurement system are physically implemented, parasitic components are introduced in the system. These may arise from bond wires, circuit board paths or cabling. The parasitic components will influence the excitation pulse behavior as well as amplitude and time of arrival for received pulses. In the system investigated, a coaxial cable is used to connect the transducer with the electronics. The inductance and capacitance of the cable are dominating parasitic components in the system. This paper investigates the effects of these components for varying cable lengths and compares measurements with system simulations using SPICE models. The simulations give highly accurate temporal behavior of the excitation pulse. The peak to peak amplitude and the perceived time of flight of the received echo in a pulse echo system is measured. Amplitude variations of 60% are recorded for cable lengths varied between 0.07 m and 2.3 m., with simulations predicting the same variations. The time of flight is measured using the excitation pulse as time trigger. Variations are up to 40 ns for a total travel time of about 8 µs. The simulations predict this variation within a few ns.

Place, publisher, year, edition, pages
Bellingham, Wash.: SPIE - International Society for Optical Engineering, 2003. p. 174-182
Series
Proceedings of the Society of Photo-Optical Instrumentation Engineers, ISSN 0361-0748 ; 4946
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-32388DOI: 10.1117/12.468265ISI: 000182252000020Scopus ID: 2-s2.0-0038175129Local ID: 6e1d1100-68f0-11db-8cbe-000ea68e967bISBN: 0-8194-4741-2 (print)OAI: oai:DiVA.org:ltu-32388DiVA, id: diva2:1005622
Conference
Transducing Materials and Devices : 31/10/2002 - 01/11/2002
Note
Godkänd; 2003; 20061031 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Johansson, JonnyDelsing, Jerker

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CiteExportLink to record
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  • apa
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