Design of portable electrocardiography (ECG) based on capacitive electrode

2019 ◽  
Author(s):  
Kresna Devara ◽  
Fitriyanti Nur Aisyah ◽  
Ketut Vanda A. W. N. ◽  
Savira Ramadhanty ◽  
Nji Raden Poespawati ◽  
...  
Keyword(s):  
Capacitive Electrode

scholarly journals Investigation on a Novel Capacitive Electrode for Geophysical Surveys

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Zhiyu Wang ◽  
Shun Wang ◽  
Guangyou Fang ◽  
Qunying Zhang
Keyword(s):  
Electrical Contact ◽  
Capacitive Coupling ◽  
Environmental Damage ◽  
Good Prospect ◽  
Test Results ◽  
Geophysical Surveys ◽  
Detection Circuit ◽  
Operating Bandwidth ◽  
Capacitive Electrode ◽  
Alternative Structure

Nonpolarizable electrodes are applied widely in the electric field measurement for geophysical surveys. However, there are two major problems: (1) systematic errors caused by poor electrical contact in the high resistive terrains and (2) environmental damage associated with using nonpolarizable electrodes. A new alternative structure of capacitive electrode, which is capable of sensing surface potential through weak capacitive coupling, is presented to solve the above problems. A technique is introduced to neutralize distributed capacitance and input capacitance of the detection circuit. With the capacitance neutralization technique, the transmission coefficient of capacitive electrode remains stable when environmental conditions change. The simulation and field test results indicate that the new capacitive electrode has an operating bandwidth range from 0.1 Hz to 1 kHz. The capacitive electrodes have a good prospect of the applications in geophysical prospecting, especially in resistive terrains.

Investigation into the energy storage behaviour of layered α-V2O5 as a pseudo-capacitive electrode using operando Raman spectroscopy and a quartz crystal microbalance

2017 ◽  
Vol 19 (36) ◽  
pp. 24689-24695 ◽  
Author(s):  
Minghai Yao ◽  
Peng Wu ◽  
Shuang Cheng ◽  
Lufeng Yang ◽  
Yuanyuan Zhu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Energy Storage ◽  
Quartz Crystal Microbalance ◽  
Layered Structure ◽  
Quartz Crystal ◽  
Step Procedure ◽  
Capacitive Electrode

α-V2O5 nanowires with a layered structure have been fabricated through a two-step procedure.

scholarly journals A simple and reproducible capacitive electrode

2016 ◽  
Vol 38 (3) ◽  
pp. 286-289 ◽  
Author(s):  
Enrique Spinelli ◽  
Federico Guerrero ◽  
Pablo García ◽  
Marcelo Haberman
Keyword(s):  
Capacitive Electrode

A capacitive electrode with fast recovery feature

2012 ◽  
Vol 33 (8) ◽  
pp. 1277-1288 ◽  
Author(s):  
Enrique Spinelli ◽  
Marcelo Haberman ◽  
Pablo García ◽  
Federico Guerrero
Keyword(s):  
Fast Recovery ◽  
Capacitive Electrode
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