An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding

This paper presents the principle, design, fabrication, and characterization of Molecular Electronic Transducer (MET) dual-axis tilt sensors. The proposed sensor has a 3D-printed cylindrical channel inserted with four double-band electrodes and partially filled with a liquid electrolyte. The double-...

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Main Authors: Yik-Kin Cheung, Hongyu Yu
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/8/1229
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author Yik-Kin Cheung
Hongyu Yu
author_facet Yik-Kin Cheung
Hongyu Yu
author_sort Yik-Kin Cheung
collection DOAJ
description This paper presents the principle, design, fabrication, and characterization of Molecular Electronic Transducer (MET) dual-axis tilt sensors. The proposed sensor has a 3D-printed cylindrical channel inserted with four double-band electrodes and partially filled with a liquid electrolyte. The double-band electrodes were fabricated by wire winding with a ~0.1 mm anode-cathode distance under controlled tension. It allows the electrode to become any 3D coil rather than a 2D structure by microfabrication and exhibits good repeatability (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mn>10</mn><mo>%</mo></mrow></semantics></math></inline-formula>). The tilting changes the electrolyte level and electrode-electrolyte contact area, resulting in Faradaic current changes. The <i>x</i>-axis and the <i>y</i>-axis sensitivity reach 0.121 V/° and 0.154 V/°, respectively.
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spelling doaj.art-3e43c3c53c0142d59bcb4965aaa2953b2023-12-03T14:07:51ZengMDPI AGMicromachines2072-666X2022-07-01138122910.3390/mi13081229An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire WindingYik-Kin Cheung0Hongyu Yu1Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, ChinaDepartment of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, ChinaThis paper presents the principle, design, fabrication, and characterization of Molecular Electronic Transducer (MET) dual-axis tilt sensors. The proposed sensor has a 3D-printed cylindrical channel inserted with four double-band electrodes and partially filled with a liquid electrolyte. The double-band electrodes were fabricated by wire winding with a ~0.1 mm anode-cathode distance under controlled tension. It allows the electrode to become any 3D coil rather than a 2D structure by microfabrication and exhibits good repeatability (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mn>10</mn><mo>%</mo></mrow></semantics></math></inline-formula>). The tilting changes the electrolyte level and electrode-electrolyte contact area, resulting in Faradaic current changes. The <i>x</i>-axis and the <i>y</i>-axis sensitivity reach 0.121 V/° and 0.154 V/°, respectively.https://www.mdpi.com/2072-666X/13/8/1229tilt sensorinclinometermolecular electronic transducerelectrochemical sensoramperometry sensor3D printing
spellingShingle Yik-Kin Cheung
Hongyu Yu
An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
Micromachines
tilt sensor
inclinometer
molecular electronic transducer
electrochemical sensor
amperometry sensor
3D printing
title An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
title_full An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
title_fullStr An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
title_full_unstemmed An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
title_short An Electrochemical Tilt Sensor with Double-Band Electrodes Fabricated by Wire Winding
title_sort electrochemical tilt sensor with double band electrodes fabricated by wire winding
topic tilt sensor
inclinometer
molecular electronic transducer
electrochemical sensor
amperometry sensor
3D printing
url https://www.mdpi.com/2072-666X/13/8/1229
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