Title :
A microcontrolled neural interface with electrode impedance measurement
Author :
Carboni, Caterina ; Loi, Daniela ; Angius, Gianmarco
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy
Abstract :
An electronic interface for neural recording, Peripheral Neural System (PNS) stimulation and electrode impedance measurement is presented. The device can be connected to the computer by an USB link and is controlled by a Graphical User Interface (GUI). The system is composed by an analog unit and by a digital module for data acquisition and system configuration. Two microcontrollers allow to configure the system in different operating modes and to set stimulation/recording parameters. The experimental results show that the designed system is able to filter and amplify signals in the [950Hz-2kHz] bandwidth, to generate current stimulation pulses with software programmable amplitude, width and frequency and to measure in-vivo the impedance of the electrode.
Keywords :
bioelectric phenomena; biomedical electrodes; electric impedance measurement; medical computing; medical control systems; microcontrollers; neurophysiology; GUI; PNS stimulation; USB link; current stimulation pulses; data acquisition; electrode impedance measurement; frequency 950 Hz to 5 kHz; graphical user interface; microcontrolled neural interface; neural recording electronic interface; neural recording parameters; neural stimulation parameters; peripheral neural system; system configuration; Electrodes; Graphical user interfaces; Impedance; Impedance measurement; Microcontrollers; Time frequency analysis;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-7905-4
