Neurotechnology Research Systems
Stimulator 2.0
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6.4
Number of Repetitions and Pulse Rate
6.4.1
No. of Repetitions
The number of repetitions is simply the number of times that the bi-phasic pulse (defined using the
GUI controls) or the arbitrary waveform (loaded from a text file) is repeated. The number of
repetitions can range from 1 to 32767. An infinite number of repetitions can also be generated by
typing “0” or “INF” in the control. The defined number of pulses or waveforms will be generated
every time the channel is started.
6.4.2
Rate
The rate is the frequency at which the defined pulse or arbitrary waveform is repeated, expressed
in Hertz, or the time between the start of one pulse or arbitrary waveform and the start of the next
pulse or arbitrary waveform, expressed in milliseconds. Use the radio buttons to select whether to
express the rate in Hertz or in milliseconds. The maximum time between pulses is 125000 ms
corresponding to a minimum rate of 0.008 Hz. The minimum time between pulses generally
depends on the length of the pulse or arbitrary waveform that is being repeated. The time between
pulses must include the duration of the pulse and at least 5 µs between pulses. For example a pulse
that lasts for 200 µs must be repeated at a rate less than 4878 Hz since 1/(200
µs + 5 µs) ~ 4878 Hz.
The rate parameter may be entered in steps of 0.001 ms (1 µs).
Rate
Number of repetitions = 3
Содержание Stimulator 2.0
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