Abstract：
:Testing electrophysiological recording equipments is an important task in multi-channel extracellular in vivo electrophysiology. In this paper, a miniature, battery powered multi-channel electrophysiological signal-generator (ESG) is described that was designed for this purpose. The device is based on a Xilinx CPLD (Complex Programmable Logic Device) and it is powered by a 3V lithium coin battery. It is a useful tool for calibration and testing the performance, quality and parameters of the recording equipments used for acquiring EEG, field potentials, ECG, EMG, and multiple unit activity. The device is ideally suited to identify instances when errors interfere with the proper recording, and repair of wiring or service of the equipment is needed. Two versions of the device are described; one is for 16 (ESG16), and another is for 32 channels (ESG32). Both versions provide amplitude and time calibration, as well as cross-talk and CMRR (common mode rejection ratio) testing for the recording equipment.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Máthé K,Tóth A,Petykó Z,Szabó I,Czurkó Adoi
10.1016/j.jneumeth.2007.05.017subject
Has Abstractpub_date
2007-09-15 00:00:00pages
1-8issue
1eissn
0165-0270issn
1872-678Xpii
S0165-0270(07)00231-2journal_volume
165pub_type
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