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A phase sensitive voltmeter for a high-speed, high-precision electrical impedance tomograph

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

17 Scopus citations

Abstract

The authors have implemented a phase-sensitive voltmeter that uses a 12-b sampling analog-to-digital converter (ADC) and a nonuniform sampling scheme to decorrelate the sampling ADC quantization noise sequence in electrical impedance tomography. Experiments have confirmed the advantage of nonuniform sampling over uniform sampling with respect to voltmeter SNR. It is found that the linearity of the nonuniform magnitude estimates is within 1 part in 216, versus the linearity of the uniform estimates, which was found to be approximately 1 part in 213.4.

Original languageEnglish
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages22-23
Number of pages2
Editionpt 1
ISBN (Print)0780302168
StatePublished - 1991
EventProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA
Duration: Oct 31 1991Nov 3 1991

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 1
Volume13

Conference

ConferenceProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityOrlando, FL, USA
Period10/31/9111/3/91

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