Single supply differential capacitive sensor with energy harvester compatibility
This paper presents a single supply differential capacitive sensing technique suitable to be used with a hybrid energy harvester in providing power to the circuit. The proposed differential capacitive circuit is designed based on the available off-the-shelf components. Theoretical and experimental s...
| Main Authors: | , , , |
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| Format: | Proceeding Paper |
| Language: | English English |
| Published: |
IEEE
2017
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| Online Access: | http://irep.iium.edu.my/53424/ http://irep.iium.edu.my/53424/25/53424-Single%20Supply%20Differential%20Capacitive%20Sensor.pdf http://irep.iium.edu.my/53424/31/Single%20supply%20differential%20capacitive%20sensor%20with%20energy%20harvester%20compatibility.pdf |
| _version_ | 1848784228980883456 |
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| author | Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong |
| author_facet | Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong |
| author_sort | Che Mustapha, Nurul Arfah |
| building | IIUM Repository |
| collection | Online Access |
| description | This paper presents a single supply differential capacitive sensing technique suitable to be used with a hybrid energy harvester in providing power to the circuit. The proposed differential capacitive circuit is designed based on the available off-the-shelf components. Theoretical and experimental study has been carried out to observe the performance of the circuit for various excitation frequencies. Tests that were carried out include using excitation frequencies ranging with a 0.1 pF capacitance change. Results from 40 kHz up to 400 kHz show a high level of linearity up to a 0.999 R-squared value. Range of capacitance detection can be increased by controlling the feedback capacitor, Cf, and the filter components, Rd and Cd. The sensitivity range is from 0.004 to 0.122 mV per every fF change,with ± 5 % error. The circuit consumes 3.83 mW, with a 3.3 V supply voltage. This circuit is also suitable for a wireless sensing node application. |
| first_indexed | 2025-11-14T16:33:55Z |
| format | Proceeding Paper |
| id | iium-53424 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T16:33:55Z |
| publishDate | 2017 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-534242018-01-23T04:09:16Z http://irep.iium.edu.my/53424/ Single supply differential capacitive sensor with energy harvester compatibility Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong TK Electrical engineering. Electronics Nuclear engineering This paper presents a single supply differential capacitive sensing technique suitable to be used with a hybrid energy harvester in providing power to the circuit. The proposed differential capacitive circuit is designed based on the available off-the-shelf components. Theoretical and experimental study has been carried out to observe the performance of the circuit for various excitation frequencies. Tests that were carried out include using excitation frequencies ranging with a 0.1 pF capacitance change. Results from 40 kHz up to 400 kHz show a high level of linearity up to a 0.999 R-squared value. Range of capacitance detection can be increased by controlling the feedback capacitor, Cf, and the filter components, Rd and Cd. The sensitivity range is from 0.004 to 0.122 mV per every fF change,with ± 5 % error. The circuit consumes 3.83 mW, with a 3.3 V supply voltage. This circuit is also suitable for a wireless sensing node application. IEEE 2017-10-16 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/53424/25/53424-Single%20Supply%20Differential%20Capacitive%20Sensor.pdf application/pdf en http://irep.iium.edu.my/53424/31/Single%20supply%20differential%20capacitive%20sensor%20with%20energy%20harvester%20compatibility.pdf Che Mustapha, Nurul Arfah and Alam, A. H. M. Zahirul and Khan, Sheroz and Azman, Amelia Wong (2017) Single supply differential capacitive sensor with energy harvester compatibility. In: 2016 IEEE Industrial Electronics and Applications Conference (IEACon), 20-22 Nov 2016, Kota Kinabalu, Malaysia. http://ieeexplore.ieee.org/document/8067399/ 10.1109/IEACON.2016.8067399 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong Single supply differential capacitive sensor with energy harvester compatibility |
| title | Single supply differential capacitive sensor with energy harvester compatibility |
| title_full | Single supply differential capacitive sensor with energy harvester compatibility |
| title_fullStr | Single supply differential capacitive sensor with energy harvester compatibility |
| title_full_unstemmed | Single supply differential capacitive sensor with energy harvester compatibility |
| title_short | Single supply differential capacitive sensor with energy harvester compatibility |
| title_sort | single supply differential capacitive sensor with energy harvester compatibility |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://irep.iium.edu.my/53424/ http://irep.iium.edu.my/53424/ http://irep.iium.edu.my/53424/ http://irep.iium.edu.my/53424/25/53424-Single%20Supply%20Differential%20Capacitive%20Sensor.pdf http://irep.iium.edu.my/53424/31/Single%20supply%20differential%20capacitive%20sensor%20with%20energy%20harvester%20compatibility.pdf |