A portable electrical impedance measurement system for flexible electrodes

Mahdi Saleh; Sara Medina-Lombardero; Michael L Crichton; Alexander J Casson

doi:10.36227/techrxiv.173603650.04066125/v1

A portable electrical impedance measurement system for flexible electrodes

Mahdi Saleh, Sara Medina-Lombardero, Michael L Crichton, Alexander J Casson

EEE - Academic & Research

Research output: Preprint/Working paper › Preprint

Abstract

This paper introduces a new portable impedance measurement system for Electrical Impedance Spectroscopy (EIS) and continuous impedance monitoring of various flexible-wearable electrodes and sensors. The system comprises a low-power, highly sensitive Electro-impedance Front End (EFE) and a Bluetooth Low Energy (BLE) microcontroller. Impedance measurements are conducted on-chip and transmitted wirelessly via BLE to a nearby mobile device or PC application. As a case study, the implemented prototype interfaces flexible sensors designed for measuring changes in impedance. Preliminary results demonstrate the sensors ability to perform EIS and detect impedance variations caused by sensor stretching.

Original language	English
Publisher	TechRxiv
Pages	1-5
Number of pages	5
DOIs	https://doi.org/10.36227/techrxiv.173603650.04066125/v1
Publication status	Published - 5 Jan 2025

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10.36227/techrxiv.173603650.04066125/v1

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abstract = "This paper introduces a new portable impedance measurement system for Electrical Impedance Spectroscopy (EIS) and continuous impedance monitoring of various flexible-wearable electrodes and sensors. The system comprises a low-power, highly sensitive Electro-impedance Front End (EFE) and a Bluetooth Low Energy (BLE) microcontroller. Impedance measurements are conducted on-chip and transmitted wirelessly via BLE to a nearby mobile device or PC application. As a case study, the implemented prototype interfaces flexible sensors designed for measuring changes in impedance. Preliminary results demonstrate the sensors ability to perform EIS and detect impedance variations caused by sensor stretching.",

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AB - This paper introduces a new portable impedance measurement system for Electrical Impedance Spectroscopy (EIS) and continuous impedance monitoring of various flexible-wearable electrodes and sensors. The system comprises a low-power, highly sensitive Electro-impedance Front End (EFE) and a Bluetooth Low Energy (BLE) microcontroller. Impedance measurements are conducted on-chip and transmitted wirelessly via BLE to a nearby mobile device or PC application. As a case study, the implemented prototype interfaces flexible sensors designed for measuring changes in impedance. Preliminary results demonstrate the sensors ability to perform EIS and detect impedance variations caused by sensor stretching.

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A portable electrical impedance measurement system for flexible electrodes

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