Journal
MICROMACHINES
Volume 13, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/mi13081229
Keywords
tilt sensor; inclinometer; molecular electronic transducer; electrochemical sensor; amperometry sensor; 3D printing; double-band electrode
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Funding
- Research Grants Council of Hong Kong [16213019]
- Project of Hetao Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone [HZQB-KCZYB-2020083]
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This paper presents the principle, design, fabrication, and characterization of a Molecular Electronic Transducer (MET) dual-axis tilt sensor. The proposed sensor, with 3D-printed cylindrical channel, four double-band electrodes, and liquid electrolyte, shows good sensitivity and repeatability.
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 similar to 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 (+/- 10%). The tilting changes the electrolyte level and electrode-electrolyte contact area, resulting in Faradaic current changes. The x-axis and the y-axis sensitivity reach 0.121 V/degrees and 0.154 V/degrees, respectively.
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