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An alternate voltage-controlled current source for electrical impedance tomography applications

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dc.citedby2
dc.contributor.authorChitturi V.en_US
dc.contributor.authorFarrukh N.en_US
dc.contributor.authorid56938688700en_US
dc.contributor.authorid56272534200en_US
dc.date.accessioned2023-05-29T07:30:38Z
dc.date.available2023-05-29T07:30:38Z
dc.date.issued2019
dc.description.abstractThe desirable features of any current source in electrical impedance tomography (EIT) are high output impedance and a constant current for varying loads. Howland current sources are the most popular current sources for EIT applications. Alternately, a simple non-inverting amplifier circuit can be used as a voltage-controlled current source using IC LM7171 op-amp. A constant current of 5 mA (PP) is designed and tested over a wide range of frequencies. The frequency response indicates a stable current up to 1 MHz. These results are validated for an impedance of 1 k? which is usually considered for EIT applications. A buffer circuit is added to this current circuit to meet high output impedance matching. A minor discrepancy is visible between the theoretical value and measured value of the output current due to the tolerance band of the resistors used in the non-inverting amplifier circuit. � Springer Nature Singapore Pte Ltd 2019.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1007/978-981-13-2514-4_8
dc.identifier.epage102
dc.identifier.scopus2-s2.0-85063228257
dc.identifier.spage93
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85063228257&doi=10.1007%2f978-981-13-2514-4_8&partnerID=40&md5=3769158ba2be30eb927c74b572968efa
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/25028
dc.identifier.volume43
dc.publisherSpringeren_US
dc.sourceScopus
dc.sourcetitleLecture Notes in Networks and Systems
dc.titleAn alternate voltage-controlled current source for electrical impedance tomography applicationsen_US
dc.typeBook Chapteren_US
dspace.entity.typePublication
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