A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation
In this study, we demonstrated the feasibility of a wireless strain sensor using resonant frequency modulation through tensile impedance test and wireless sensing test. To achieve a high stretchability, the sensor was fabricated by embedding a copper wire with high conductivity in a silicone rubber...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-11-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/18/11/3955 |
| _version_ | 1811186048893452288 |
|---|---|
| author | Kyeong Jae Lee Namsun Chou Sohee Kim |
| author_facet | Kyeong Jae Lee Namsun Chou Sohee Kim |
| author_sort | Kyeong Jae Lee |
| collection | DOAJ |
| description | In this study, we demonstrated the feasibility of a wireless strain sensor using resonant frequency modulation through tensile impedance test and wireless sensing test. To achieve a high stretchability, the sensor was fabricated by embedding a copper wire with high conductivity in a silicone rubber with high stretchability, in which the resonant frequency can be modulated according to changes in strain. The characteristics of the sensor and the behavior of wireless sensing were calculated based on equations and simulated using finite element method. As the strain of the sensor increased, the inductance increased, resulting in the modulation of resonant frequency. In experimental measurement, as the strain of the sensor increased from 0% to 110%, its inductance was increased from 192 nH to 220 nH, changed by 14.5%, and the resonant frequency was shifted from 13.56 MHz to 12.72 MHz, decreased by 6.2%. It was demonstrated that using the proposed sensor, strains up to 110% could be detected wirelessly up to a few centimeters. |
| first_indexed | 2024-04-11T13:39:43Z |
| format | Article |
| id | doaj.art-56b5dee255d9426d830cb8ed02637f39 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:39:43Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-56b5dee255d9426d830cb8ed02637f392022-12-22T04:21:18ZengMDPI AGSensors1424-82202018-11-011811395510.3390/s18113955s18113955A Batteryless, Wireless Strain Sensor Using Resonant Frequency ModulationKyeong Jae Lee0Namsun Chou1Sohee Kim2Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, KoreaCenter for BioMicroSystems, Korea Institute of Science and Technology (KIST), Seoul 02792, KoreaDepartment of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, KoreaIn this study, we demonstrated the feasibility of a wireless strain sensor using resonant frequency modulation through tensile impedance test and wireless sensing test. To achieve a high stretchability, the sensor was fabricated by embedding a copper wire with high conductivity in a silicone rubber with high stretchability, in which the resonant frequency can be modulated according to changes in strain. The characteristics of the sensor and the behavior of wireless sensing were calculated based on equations and simulated using finite element method. As the strain of the sensor increased, the inductance increased, resulting in the modulation of resonant frequency. In experimental measurement, as the strain of the sensor increased from 0% to 110%, its inductance was increased from 192 nH to 220 nH, changed by 14.5%, and the resonant frequency was shifted from 13.56 MHz to 12.72 MHz, decreased by 6.2%. It was demonstrated that using the proposed sensor, strains up to 110% could be detected wirelessly up to a few centimeters.https://www.mdpi.com/1424-8220/18/11/3955batteryless strain sensorwireless strain sensorresonant frequency modulationEcoflex |
| spellingShingle | Kyeong Jae Lee Namsun Chou Sohee Kim A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation Sensors batteryless strain sensor wireless strain sensor resonant frequency modulation Ecoflex |
| title | A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation |
| title_full | A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation |
| title_fullStr | A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation |
| title_full_unstemmed | A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation |
| title_short | A Batteryless, Wireless Strain Sensor Using Resonant Frequency Modulation |
| title_sort | batteryless wireless strain sensor using resonant frequency modulation |
| topic | batteryless strain sensor wireless strain sensor resonant frequency modulation Ecoflex |
| url | https://www.mdpi.com/1424-8220/18/11/3955 |
| work_keys_str_mv | AT kyeongjaelee abatterylesswirelessstrainsensorusingresonantfrequencymodulation AT namsunchou abatterylesswirelessstrainsensorusingresonantfrequencymodulation AT soheekim abatterylesswirelessstrainsensorusingresonantfrequencymodulation AT kyeongjaelee batterylesswirelessstrainsensorusingresonantfrequencymodulation AT namsunchou batterylesswirelessstrainsensorusingresonantfrequencymodulation AT soheekim batterylesswirelessstrainsensorusingresonantfrequencymodulation |