A device for measuring the electrical bioimpedance with variety of electrode placements for monitoring the breathing and heart rate

Metshein, Margus

doi:10.1109/issc.2015.7163748

Cited by 12 publications

(12 citation statements)

References 8 publications

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“…In fact, concerning Fig. 19, the HR is available in all of the cases if the signal is magnified, carried by the RR -discussed already in [12]. The change of the amplitude of measured signal, caused by the movements of the subject's body during the measurement experiments, is distracting the result for visual interpretation.…”

Section: Discussionmentioning

confidence: 90%

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Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Metshein¹,

Parve²,

Annus³

et al. 2017

ElAEE

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The idea of a device for measuring the impedance of human body with the target of monitoring the respiratory and heart rate is proposed in this paper. Hardware realization of the proposed idea is described with the illustration of the custom designed printed circuit board. Preparation of electrode shirts with various electrode placement configurations is introduced. Series of experimental measurements in the cases of dynamic bioimpedance reference and single human subject are described and results shown to evaluate the custom made device. The excitation frequencies in the range of 2 MHz-20 MHz are utilized in the cases of large foil and textile electrodes to focus on the use of the capacitive connection to the object-constituting the novelty of the current paper. The results are analysed concerning the dependency of the visual availability of the interesting signal of breathing and heart rate of the material and the placement of the electrodes. Availability of breathing is found to be evident in all of the experimented cases. The heart rate is found to be challenging because of the presence of high frequency noise.

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Section: Discussionmentioning

confidence: 90%

“…1 (ES1) included the large wet plate surface electrodes of original size that were positioned to cover the whole back, sides and shoulders of human (Fig. 4) [10], [12]. The placement was expected to grant access to the periodical changes that take place in lungs and heart.…”

Section: Measurement Setup In the Experiments On Human By Using Thmentioning

confidence: 99%

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Metshein¹,

Parve²,

Annus³

et al. 2017

ElAEE

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“…To measure ReZ of human trunk, a custom made electrode shirt was used, described in [8]. The device was composed in a way that large wet plate surface electrodes of dimensions 80 mm x 170 mm were attached onto the outer surface of a cotton shirt and connected in desired configuration.…”

Section: B Setup For Measuring the Rez Of Human Trunkmentioning

confidence: 99%

Hardware imitation of the varying bioelectrical impedance for testing the device for measurement of the impedance of human trunk by using a JFET

Metshein

2016

2016 International Conference on Applied Electronics (AE)

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In this paper an approach of imitating the periodically varying electrical bioimpedance of human trunk in case of breathing by using a field effect transistor is presented. The principles of creating a simulation model and preparing a prototype of electronic measurement device, are described. The experiments are presented and the results are compared concerning the change of channel resistance of the field effect transistor and change of real part of impedance of trunk, caused by breathing. The problems of high frequency capacitive measurements and the impact on the design of electronic measurement device are discussed. The results are showing the possibility of using a field effect transistor for imitating breathing. This is a most suitable way of simulation because of the relatively high operating frequency of impedance measurement device needed in the case of using the capacitive electrodes.

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“…Another less common application of respiratory sensing is the evaluation of the health of combat soldiers [ 21 , 22 ]. This has a double utility: it provides information on the integrity of soldiers and allows collecting field information.…”

Section: Introductionmentioning

confidence: 99%

Sensing Systems for Respiration Monitoring: A Technical Systematic Review

Vanegas

Igual

Plaza

2020

Sensors

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Respiratory monitoring is essential in sleep studies, sport training, patient monitoring, or health at work, among other applications. This paper presents a comprehensive systematic review of respiration sensing systems. After several systematic searches in scientific repositories, the 198 most relevant papers in this field were analyzed in detail. Different items were examined: sensing technique and sensor, respiration parameter, sensor location and size, general system setup, communication protocol, processing station, energy autonomy and power consumption, sensor validation, processing algorithm, performance evaluation, and analysis software. As a result, several trends and the remaining research challenges of respiration sensors were identified. Long-term evaluations and usability tests should be performed. Researchers designed custom experiments to validate the sensing systems, making it difficult to compare results. Therefore, another challenge is to have a common validation framework to fairly compare sensor performance. The implementation of energy-saving strategies, the incorporation of energy harvesting techniques, the calculation of volume parameters of breathing, or the effective integration of respiration sensors into clothing are other remaining research efforts. Addressing these and other challenges outlined in the paper is a required step to obtain a feasible, robust, affordable, and unobtrusive respiration sensing system.

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A device for measuring the electrical bioimpedance with variety of electrode placements for monitoring the breathing and heart rate

Cited by 12 publications

References 8 publications

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Hardware imitation of the varying bioelectrical impedance for testing the device for measurement of the impedance of human trunk by using a JFET

Sensing Systems for Respiration Monitoring: A Technical Systematic Review

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