Capacitive tactile sensor with asymmetric electrodes for angle-detection-error alleviation
| Autor: | Cheng-Yao Lo, Rongshun Chen, Shi-Te Chuang, Mochtar Chandra |
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| Rok vydání: | 2016 |
| Předmět: |
Imagination
Materials science Chemical substance Capacitive sensing media_common.quotation_subject Shear force 02 engineering and technology 01 natural sciences law.invention Optics law Electrical and Electronic Engineering Instrumentation media_common business.industry 010401 analytical chemistry Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Capacitor Electrode Optoelectronics 0210 nano-technology business Science technology and society Tactile sensor |
| Zdroj: | Sensors and Actuators A: Physical. 250:159-169 |
| ISSN: | 0924-4247 |
| Popis: | A capacitive tactile sensing unit with an asymmetric electrode arrangement to support tolerable angle detection errors (ADEs) in processes and operations was proposed and demonstrated in this study. Each capacitor in the sensing unit contains one fan-shaped electrode on top and one square-shaped electrode at the bottom with an intentional shift on the xy-plane, which alleviated the rotational misalignment and suppressed shear force ADE from more than 2.5° to less than 0.4°. The suppression of the ADE was realized by enlarging the sector angle of the fan-shaped electrode to 100°, which provided 5° clockwise and 5° counterclockwise coverages for electrode alignment. Complete theoretical derivation of the relationships among the capacitors, design, simulation, and measurement was conducted in this research. Experimental results proved that this fan-shaped electrode design showed identical functionalities and sensitivities to those of the square-shaped electrode design for capacitive tactile sensing applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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