Neurotechnology Research Systems
Stimulator 2.0
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6.6.3
Z conversion
The Z conversion control calculates the electrode impedance from the voltage measurement you
provide. Enter the peak to peak voltage expressed in millivolts that you observed on the voltage
monitor output. The control calculates and displays the corresponding electrode impedance
expressed in k
. The voltage monitor scale factor is handled automatically for you.
6.7
Function Stimulate / Function Z test
6.7.1
Stimulate Mode
Select stimulate mode for rectangular pulse or arbitrary waveform stimulation.
6.7.2
Impedance Test Mode
Select impedance test (Z Test) mode to perform impedance testing on electrodes. In impedance
test mode, a 1 kHz ±100 nA sinusoidal stimulation pattern is automatically selected and loaded for
each channel. Start stimulation on a channel and observe the voltage monitor output for that
channel to determine the impedance of the electrode. See section 5.9 for an example.
