Kapacitivne beskontaktne elektrode za mjerenje biopotencijala

master's thesis

• Title (english): Capacitive non-contact electrodes for biopotential measurement
• Author: Dora Vranješ
• Mentor: Mario Cifrek (mentor)
• Committee member: Mario Cifrek (predsjednik povjerenstva)
• Committee member: Hrvoje Džapo (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-07-17, Croatia

Abstract

Rad sadrži opis funkcionalnosti, proces dizajniranja i izrade beskontaktnih kapacitivnih elektroda (BKE) za mjerenje EKG-a i elektrode kapacitivnog pogona desne noge. Topologija korištena za izradu BKE je unaprijeđeno naponsko sljedilo za transformaciju visoke impedancije kapacitivnog sučelja koža-elektroda. Elektrode su spojene na akvizicijski Bluetooth modul s pomoću kojeg se signali prikupljeni preko osjetilne površine elektroda šalju na razvojni sustav Nordic Semiconductor nRF52 spojen na prijenosno računalo. Signali srčane aktivnosti prate se u stvarnom vremenu s pomoću programa SerialPlot. Tiskane pločice projektirane su u programskom paketu Altium Designer.

Abstract (english)

The work contains the description of functionality, design and manufacturing process of both capacitive non-contact electrodes for ECG measurement and the capacitive right leg drive electrode. The topology that is used in the design of the ECG electrodes is an improved voltage follower used to transform the high impedance of the capacitive skin-electrode interface. The electrodes are connected to an acquisition Bluetooth module which transfers the signals acquired through the sensory surface to the Nordic Semiconductor nRF52 development kit connected to a laptop. Heart activity signals are observed in real time in the SerialPlot program. The printed circuit boards are designed in the Altium Designer software package.

• Keywords: beskontakne kapacitivne elektrode; kapacitivni pogon desne noge; elektrokardiografija
• Keywords (english): capacitive non-contact electrodes; capacitive driven-right-leg; electrocardiography
• Language: croatian
• URN:NBN: urn:nbn:hr:168:720720
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 22:27:02