Parasitic Effects on Electrical Bioimpedance Systems: Critical Review
Parasitic capacitance represents the main error source in measurement systems based on electrical impedance spectroscopy. The capacitive nature of electrodes’ impedance in tetrapolar configuration can give origin to phase errors when electrodes are coupled to parasitic capacitances. Nevertheless, re...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/22/8705 |
| _version_ | 1797464025853853696 |
|---|---|
| author | David William Cordeiro Marcôndes Aleksander Sade Paterno Pedro Bertemes-Filho |
| author_facet | David William Cordeiro Marcôndes Aleksander Sade Paterno Pedro Bertemes-Filho |
| author_sort | David William Cordeiro Marcôndes |
| collection | DOAJ |
| description | Parasitic capacitance represents the main error source in measurement systems based on electrical impedance spectroscopy. The capacitive nature of electrodes’ impedance in tetrapolar configuration can give origin to phase errors when electrodes are coupled to parasitic capacitances. Nevertheless, reactive charges in tissue excitation systems are susceptible to instability. Based on such a scenario, mitigating capacitive effects associated with the electrode is a requirement in order to reduce errors in the measurement system. A literature review about the main compensation techniques for parasitic capacitance was carried out. The selected studies were categorized into three groups: (i) compensation in electronic instrumentation; (ii) compensation in measurement processing, and (iii) compensation by negative impedance converters. The three analyzed methods emerged as effective against fixed capacitance. No method seemed capable of mitigating the effects of electrodes’ capacitance, that changes in the frequency spectrum. The analysis has revealed the need for a method to compensate varying capacitances, since electrodes’ impedance is unknown. |
| first_indexed | 2024-03-09T18:01:06Z |
| format | Article |
| id | doaj.art-82e2f17cfdc84770abaaedde75a6dfaf |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T18:01:06Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-82e2f17cfdc84770abaaedde75a6dfaf2023-11-24T09:54:27ZengMDPI AGSensors1424-82202022-11-012222870510.3390/s22228705Parasitic Effects on Electrical Bioimpedance Systems: Critical ReviewDavid William Cordeiro Marcôndes0Aleksander Sade Paterno1Pedro Bertemes-Filho2Center for Science and Technology, Department of Electrical Engineering, Santa Catarina State University, Joinville 89219710, BrazilCenter for Science and Technology, Department of Electrical Engineering, Santa Catarina State University, Joinville 89219710, BrazilCenter for Science and Technology, Department of Electrical Engineering, Santa Catarina State University, Joinville 89219710, BrazilParasitic capacitance represents the main error source in measurement systems based on electrical impedance spectroscopy. The capacitive nature of electrodes’ impedance in tetrapolar configuration can give origin to phase errors when electrodes are coupled to parasitic capacitances. Nevertheless, reactive charges in tissue excitation systems are susceptible to instability. Based on such a scenario, mitigating capacitive effects associated with the electrode is a requirement in order to reduce errors in the measurement system. A literature review about the main compensation techniques for parasitic capacitance was carried out. The selected studies were categorized into three groups: (i) compensation in electronic instrumentation; (ii) compensation in measurement processing, and (iii) compensation by negative impedance converters. The three analyzed methods emerged as effective against fixed capacitance. No method seemed capable of mitigating the effects of electrodes’ capacitance, that changes in the frequency spectrum. The analysis has revealed the need for a method to compensate varying capacitances, since electrodes’ impedance is unknown.https://www.mdpi.com/1424-8220/22/22/8705electrical bioimpedanceerror compensationsparasitic capacitancescritical review |
| spellingShingle | David William Cordeiro Marcôndes Aleksander Sade Paterno Pedro Bertemes-Filho Parasitic Effects on Electrical Bioimpedance Systems: Critical Review Sensors electrical bioimpedance error compensations parasitic capacitances critical review |
| title | Parasitic Effects on Electrical Bioimpedance Systems: Critical Review |
| title_full | Parasitic Effects on Electrical Bioimpedance Systems: Critical Review |
| title_fullStr | Parasitic Effects on Electrical Bioimpedance Systems: Critical Review |
| title_full_unstemmed | Parasitic Effects on Electrical Bioimpedance Systems: Critical Review |
| title_short | Parasitic Effects on Electrical Bioimpedance Systems: Critical Review |
| title_sort | parasitic effects on electrical bioimpedance systems critical review |
| topic | electrical bioimpedance error compensations parasitic capacitances critical review |
| url | https://www.mdpi.com/1424-8220/22/22/8705 |
| work_keys_str_mv | AT davidwilliamcordeiromarcondes parasiticeffectsonelectricalbioimpedancesystemscriticalreview AT aleksandersadepaterno parasiticeffectsonelectricalbioimpedancesystemscriticalreview AT pedrobertemesfilho parasiticeffectsonelectricalbioimpedancesystemscriticalreview |