Next Article in Journal
Design, Implementation, and Configuration of Laser Systems for Vehicle Detection and Classification in Real Time
Previous Article in Journal
Quantifying Step Count and Oxygen Consumption with Portable Technology during the 2-Min Walk Test in People with Lower Limb Amputation
Article

Low Power Contactless Bioimpedance Sensor for Monitoring Breathing Activity †

Computer Systems Department, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
This paper is our extended conference paper “Towards noninvasive bioimpedance sensor design based on wide bandwidth ring resonator” published in Proceedings of the 2015 38th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO), Opatija, Croatia, 25–29 May 2015.
Academic Editor: Yasuhisa Omura
Sensors 2021, 21(6), 2081; https://doi.org/10.3390/s21062081
Received: 11 February 2021 / Revised: 7 March 2021 / Accepted: 11 March 2021 / Published: 16 March 2021
(This article belongs to the Section Biomedical Sensors)
An electronic circuit for contactless detection of impedance changes in a tissue is presented. It operates on the principle of resonant frequency change of the resonator having the observed tissue as a dielectric. The operating frequency reflects the tissue dielectric properties (i.e., the tissue composition and on the tissue physiological changes). The sensor operation was tested within a medical application by measuring the breathing of a patient, which was an easy detectable physiological process. The advantage over conventional contact bioimpedance measurement methods is that no direct contact between the resonator and the body is required. Furthermore, the sensor’s wide operating range, ability to adapt to a broad range of measured materials, fast response, low power consumption, and small outline dimensions enables applications not only in the medical sector, but also in other domains. This can be extended, for example, to food industry or production maintenance, where the observed phenomena are reflected in dynamic dielectric properties of the observed object or material. View Full-Text
Keywords: bioimpedance sensor; resonator; permittivity measurement; low power bioimpedance sensor; resonator; permittivity measurement; low power
Show Figures

Figure 1

MDPI and ACS Style

Pavlin, M.; Novak, F.; Papa, G. Low Power Contactless Bioimpedance Sensor for Monitoring Breathing Activity. Sensors 2021, 21, 2081. https://doi.org/10.3390/s21062081

AMA Style

Pavlin M, Novak F, Papa G. Low Power Contactless Bioimpedance Sensor for Monitoring Breathing Activity. Sensors. 2021; 21(6):2081. https://doi.org/10.3390/s21062081

Chicago/Turabian Style

Pavlin, Marko, Franc Novak, and Gregor Papa. 2021. "Low Power Contactless Bioimpedance Sensor for Monitoring Breathing Activity" Sensors 21, no. 6: 2081. https://doi.org/10.3390/s21062081

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop