Toward novel wearable pyroelectric temperature sensor for medical applications
Davidson, Alan and Buis, Arjan and Glesk, Ivan (2017) Toward novel wearable pyroelectric temperature sensor for medical applications. IEEE Sensors Journal, 17 (20). 6682 - 6689. ISSN 1530-437X (https://doi.org/10.1109/JSEN.2017.2744181)
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Abstract
Knowledge of an amputees’ residual limb skin temperature is considered to be of particular importance as an indicator of tissue health. Temperature within the prosthetic socket typically varies over the range 25°C to 35°C and this warm, confined environment causes sweating which creates favourable conditions for both the growth of bacteria and an increased risk of tissue breakdown. With this in mind a wearable sensor for the real-time measurement of temperature variations at the prosthetic socket/liner interface is under development and a proof of concept prototype is presented. The sensor exploits the large pyroelectric effect present in ferroelectric lead zirconate titanate (PbZr)x (Ti)(1-x)(O3) (PZT) and has several inherent advantages over other methods of temperature sensing. The sensing element is a low cost commercially available thick-film PZT device. Mathematical models are developed to describe the sensor immitance and response to temperature change, and both the clamped and unclamped capacitances are investigated over the range 20°C to 40°C. Sensor characteristics were found to be dominated by the clamped dielectric constant and operation under short-circuit conditions is found to offer a constant sensor gain over the temperature range of interest
ORCID iDs
Davidson, Alan ORCID: https://orcid.org/0000-0003-0510-0185, Buis, Arjan ORCID: https://orcid.org/0000-0003-3947-293X and Glesk, Ivan ORCID: https://orcid.org/0000-0002-3176-8069;-
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Item type: Article ID code: 61866 Dates: DateEvent15 October 2017Published24 September 2017Published Online16 August 2017Accepted3 May 2017SubmittedNotes: (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works. Subjects: Technology > Engineering (General). Civil engineering (General) > Bioengineering
Technology > Electrical engineering. Electronics Nuclear engineeringDepartment: Faculty of Engineering > Electronic and Electrical Engineering
Faculty of Engineering > Biomedical Engineering
Strategic Research Themes > Health and WellbeingDepositing user: Pure Administrator Date deposited: 29 Sep 2017 09:31 Last modified: 11 Nov 2024 11:46 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/61866