Capacitive Electrocardiographic and Bioelectric Electrodes

López, Alfredo; Richardson, P. C.

doi:10.1109/tbme.1969.4502613

Cited by 133 publications

(53 citation statements)

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“…1(a). The deepest part of the skin, also known as the dermis and the subcutaneous layer, behaves in general as purely resistive elements, R u [4]. Capacitive electrodes measure bioelectric signal in the form of electrostatic charges whereby our main interest lies in the presence of charges rather than their flow.…”

Section: Capacitive Principle Of Noncontact Ecg Electrodementioning

confidence: 99%

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Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process

Mathias¹,

Park²,

Eungbo³

et al. 2016

Transactions on Electrical and Electronic Materials

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Contact electrodes pose threats like inflammation, metal poisoning, and allergic reaction to the user during long term ECG procedure. Therefore, we present a novel noncontact electrocardiographic electrode designed through microelectromechanical systems (MEMS) process. The proposed ECG electrode consists of small inner and large outer circular copper plates separated by thin insulator. The inner plate enables capacitive transduction of bio-potential variations on a subject's chest into a voltage that can be processed by a signal processing board, whereas the outer plate shields the inner plate from environmental electromagnetic noise. The electrode lead wires are also coaxially designed to prevent cables from coupling to ground or electronic devices. A prototype ECG electrode has an area of about 2.324 cm 2 , is very flexible and does not require power to operate. The prototype ECG electrode could measure ECG at about 500 um distance from the subject's chest.

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Section: Capacitive Principle Of Noncontact Ecg Electrodementioning

confidence: 99%

“…Actually, this technology is not new as Richard-son and Lopez were the first to develop a noncontact ECG sensor system using purely capacitive electrodes, which allow for the recording of bio-potential variations through insulating materials such as clothing [4].…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process

Mathias¹,

Park²,

Eungbo³

et al. 2016

Transactions on Electrical and Electronic Materials

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“…In order to achieve the goal of facilitating patients with severe disability a new life style, making them live independently by non-contact and no muscle action, developing a novel way to innovate the traditional human-computer interaction manner is becoming more and more fascinating [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Remote controller using steady state visual evoked potential

Song¹,

Wang²,

Wang³

et al. 2017

2nd Annual International Conference on Energy, Environmental &Amp; Sustainable Ecosystem Development (EESED 2016)

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This paper develops a new air-conditioning remote ccontrol system which based on brain waves and the Android system. First of all, the desired brain waves in EEG signals in the form of steady-state visual evoked is collected. By extracting and analysis the feature hidden in EEG signal, the system can identify the operation intention of volunteer to control air-conditioning machine, such as open or close and addition or subtraction about temperature. In addition, the control coding and wireless connections are implemented based on Bluetooth technology. Finally, we realize the Android mobile phones as the core of whole remote control. The eexperimental results show that brain wave control system of air conditioner remote is capable of stable and rapid detection of brain signals to control commands. Compared to commonly used buttons remote control, our designed system can realize the goal of non-contact control for air-conditioning.

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“…Lopetz et al prepared a dielectric electrode for the clinical bioelectric measurements, which consists of Si02 anodic-oxidized on Al plate surface [1]. There is arelationshipbetween electric capacity, C, and e expressed by C = e0e(S/d) (1) where co is dielectric constant in vacuum, S is the area of the electrode, and d is the thickness of the dielectric film.…”

Section: Introductionmentioning

confidence: 99%

Preparation of DLC Thin Films by Plasma Polymerization and Their Dielectric Properties.

Iriyama

Hasegawa

Ihara

2000

J. Photopol. Sci. Technol.

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Diamondlike carbon (DLC) thin film was prepared by the plasma polymerization of H~/CH4 on Al plate for an application to a dielectric electrode in clinical bioelectric measurements. The DLC films obtained had a high dielectric constant of as high as 12 and very low dielectric loss of about 0.03-0.06, which indicated that they worked as capacitors. The DLC films also had excellent mechanical properties, great hardness, adhesivity, and durability, although their thickness is only around 10 nm. The barrier property of the DLC films against a physiological salt solution was also satisfactory. In the simulation measurement of electrocardiogram, an oscillated signal passed through the DLC film with a physiological salt solution was detected by a synchroscope with an advance of t/2 as in the theory. A possibility of the use of the DLC film for the application to clinical bioelectric measurements was suggested.

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Capacitive Electrocardiographic and Bioelectric Electrodes

Cited by 133 publications

References 0 publications

Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process

Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process

Remote controller using steady state visual evoked potential

Preparation of DLC Thin Films by Plasma Polymerization and Their Dielectric Properties.

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