Measurement errors of the EIT systems using a phantom and conductive yarns
- Measurement errors of the EIT systems using a phantom and conductive yarns
- 김충현; 박지수; 구상모
- electric impedance tomography; inverse problem; phantom; algorithm
- Issue Date
- 대한전기학회논문지 : 전기물성,응용부문 C; The Transactions of The Korean Institute of Electrical Engineers
- VOL 65, NO 8-1435
- Electrical impedance tomography (EIT) has been applied to measure the location of external disturbance using a phantom and conductive yarns. According to the test results, the addition of carbon nanotube particles into the phantom does not show remarkable improvement in location errors. On the other hand combined fabric, conductive yarns with fabric, and non-woven fabric, were added to evaluate its performance as a fabric sensor. The combined fabric resulted in a decrease of 21.5% in the circumferential location error and a decrease of 50% in the radial location error, compared to those of the yarns. Additionally, it was revealed that the measurement error is almost linearly proportional to the conductivity of the phantom liquid and resistance of the conductive yarns. The combined fabric can be a promising material for fabric sensors in sports utilities and medical devices.
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