Signal Generator, Impedance Meter, Amplifier/DataLogger, Electrode Tester
SIGGI-2 is a laboratory tool for generating and measuring electrical signal parameters in the voltage range typical of biophysiological signals. It is designed to be of help for users, resellers, techicians or developers of devices for the acquisition of biosignals (e.g. EEG amplifiers).
The Calibrated Signal Generator
Issuing both built-in and user-recorded signals onto 1-32 channels (accompanied by a trigger signal), can be used to verify an amplifier's ability to correctly record amplitudes and frequencies, to visualise filter characteristics, to check linearity of DC amplifiers and to check Common Mode Rejection (CMR).
The Impedance Meter
Measures the impedance between 1-32 electrodes and their reference and ground electrodes. Special custom adaptors for any EEG-Recording cap/electrode input box can be supplied. This is a comfortable way to measure impedances independent from the EEG amplifier, or if there are reasons to doubt the impedance measurement routines built into a respective amplifier.
The Electrode Tester
Measures the electrode potential of 1-32 electrodes and its changes for up to 6 hours. This tool is unique and invaluable for assessing the suitability for individual electrodes for DC recordings.
SIGGI-2 comes with a base unit, 4x AA batteries and a battery charger, a Signal-Out box, a Trigger-Out cable, 3x Single-Ch-In cables, and a user manual.
