Wireless Capsule Technology: Remotely Powered Improved High-Sensitive Barometric Endoradiosonde

Annese, V.F. , Martin, C., Cumming, D.R.S. and De Venuto, D. (2016) Wireless Capsule Technology: Remotely Powered Improved High-Sensitive Barometric Endoradiosonde. In: 2016 IEEE International Symposium on Circuits and Systems (ISCAS), Montréal, QC, Canada, 22-25 May 2016, pp. 1370-1373. ISBN 9781479953417 (doi:10.1109/ISCAS.2016.7527504)

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Abstract

In this paper an improved design of an RFID powered swallowable barometric endoradiosonde (ERS) is presented. The ERS consists of a micro fabricated capacitive sensor printed in gold on Polycaprolactone (PCL) on which a transponder chip design in 0.35μm AMS technology is in-plane bounded to the PCL substrate. The implantable or inside the body, transponder (tag) is powered by the external reader at 900MHz through inductively coupled antennas. The tag performs the capacitance to frequency conversion and transmits data back to the reader using load-shift keying (LSK) modulation. The ERS can measure the sensor output frequency with an INL error of 0.4%, sensitivity (Δf/ΔP) of -6.12MHz/kPa, occupies a volume of 1mm3 (transponder only), consumes, 400μW and 360μW for, respectively, dynamic and static power. The sensor has an accuracy of ± 0.1kPa, works in the pressure range of 0-1.99kPa (0-15mmHg). The readout circuit has a ±1.84kHz resolution.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Martin, Mr Christopher and Annese, Mr Valerio
Authors: Annese, V.F., Martin, C., Cumming, D.R.S., and De Venuto, D.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISSN:2379-447X
ISBN:9781479953417
Published Online:11 August 2016

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190623The Multi-Corder: Poly-Sensor TechnologyDavid CummingEngineering and Physical Sciences Research Council (EPSRC)EP/K021966/1ENG - Electronics & Nanoscale Engineering
169106Sonopill: minimally invasive gastrointestinal diagnosis and therapyDavid CummingEngineering and Physical Sciences Research Council (EPSRC)EP/K034537/1ENG - Electronics & Nanoscale Engineering