Piezoresistive Tactile Sensor Discriminating Multidirectional Forces
Flexible tactile sensors capable of detecting the magnitude and direction of the applied force together are of great interest for application in human-interactive robots, prosthetics, and bionic arms/feet. Human skin contains excellent tactile sensing elements, mechanoreceptors, which detect their a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-10-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/15/10/25463 |
| _version_ | 1798034581360738304 |
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| author | Youngdo Jung Duck-Gyu Lee Jonghwa Park Hyunhyub Ko Hyuneui Lim |
| author_facet | Youngdo Jung Duck-Gyu Lee Jonghwa Park Hyunhyub Ko Hyuneui Lim |
| author_sort | Youngdo Jung |
| collection | DOAJ |
| description | Flexible tactile sensors capable of detecting the magnitude and direction of the applied force together are of great interest for application in human-interactive robots, prosthetics, and bionic arms/feet. Human skin contains excellent tactile sensing elements, mechanoreceptors, which detect their assigned tactile stimuli and transduce them into electrical signals. The transduced signals are transmitted through separated nerve fibers to the central nerve system without complicated signal processing. Inspired by the function and organization of human skin, we present a piezoresistive type tactile sensor capable of discriminating the direction and magnitude of stimulations without further signal processing. Our tactile sensor is based on a flexible core and four sidewall structures of elastomer, where highly sensitive interlocking piezoresistive type sensing elements are embedded. We demonstrate the discriminating normal pressure and shear force simultaneously without interference between the applied forces. The developed sensor can detect down to 128 Pa in normal pressure and 0.08 N in shear force, respectively. The developed sensor can be applied in the prosthetic arms requiring the restoration of tactile sensation to discriminate the feeling of normal and shear force like human skin. |
| first_indexed | 2024-04-11T20:46:13Z |
| format | Article |
| id | doaj.art-5f5cc4f94225443bbbda8e54709dcc97 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:46:13Z |
| publishDate | 2015-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5f5cc4f94225443bbbda8e54709dcc972022-12-22T04:04:01ZengMDPI AGSensors1424-82202015-10-011510254632547310.3390/s151025463s151025463Piezoresistive Tactile Sensor Discriminating Multidirectional ForcesYoungdo Jung0Duck-Gyu Lee1Jonghwa Park2Hyunhyub Ko3Hyuneui Lim4Department of Nature-Inspired Nanoconvergence System, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nanoconvergence System, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, KoreaDepartment of Nature-Inspired Nanoconvergence System, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaFlexible tactile sensors capable of detecting the magnitude and direction of the applied force together are of great interest for application in human-interactive robots, prosthetics, and bionic arms/feet. Human skin contains excellent tactile sensing elements, mechanoreceptors, which detect their assigned tactile stimuli and transduce them into electrical signals. The transduced signals are transmitted through separated nerve fibers to the central nerve system without complicated signal processing. Inspired by the function and organization of human skin, we present a piezoresistive type tactile sensor capable of discriminating the direction and magnitude of stimulations without further signal processing. Our tactile sensor is based on a flexible core and four sidewall structures of elastomer, where highly sensitive interlocking piezoresistive type sensing elements are embedded. We demonstrate the discriminating normal pressure and shear force simultaneously without interference between the applied forces. The developed sensor can detect down to 128 Pa in normal pressure and 0.08 N in shear force, respectively. The developed sensor can be applied in the prosthetic arms requiring the restoration of tactile sensation to discriminate the feeling of normal and shear force like human skin.http://www.mdpi.com/1424-8220/15/10/25463tactile sensorpiezoresistiveshear forcecarbon nanotubeinterlocking microdomemultidirectional detection |
| spellingShingle | Youngdo Jung Duck-Gyu Lee Jonghwa Park Hyunhyub Ko Hyuneui Lim Piezoresistive Tactile Sensor Discriminating Multidirectional Forces Sensors tactile sensor piezoresistive shear force carbon nanotube interlocking microdome multidirectional detection |
| title | Piezoresistive Tactile Sensor Discriminating Multidirectional Forces |
| title_full | Piezoresistive Tactile Sensor Discriminating Multidirectional Forces |
| title_fullStr | Piezoresistive Tactile Sensor Discriminating Multidirectional Forces |
| title_full_unstemmed | Piezoresistive Tactile Sensor Discriminating Multidirectional Forces |
| title_short | Piezoresistive Tactile Sensor Discriminating Multidirectional Forces |
| title_sort | piezoresistive tactile sensor discriminating multidirectional forces |
| topic | tactile sensor piezoresistive shear force carbon nanotube interlocking microdome multidirectional detection |
| url | http://www.mdpi.com/1424-8220/15/10/25463 |
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