Triggering
After setting up the device, stimulation triggers can be sent via the output port. These then activate the target stimulator, producing stimulation with the desired parameters. By altering the stimulation mode and settings, a wide range of stimulation parameters can be applied.
Controls
The device has three stimulation modes, normal, high frequency and burst, each of which has its own configurable parameters. The stimulation mode and parameters are set using the device interface.
The current mode and the parameters for that mode are displayed on the LCD screen on the front panel. A flashing cursor shows which parameter is currently selected.
Rotating the control knob will alter the currently selected setting within its allowed range. If the mode is selected, this will alter the currently selected stimulation mode. Pressing the knob will move the selection to the next setting on the screen, allowing each parameter to be set. The flashing cursor will move to the newly selected parameter and this can then be set using the control knob.
Normal mode
Normal mode provides a range of parameters for tonic stimulation at low frequencies. Stimulation is applied regularly at the specified frequency. The applied frequency can be adjusted with high resolution.
The configurable parameters are shown in the following table:
| Parameter | Units | Minimum | Maximum |
|---|---|---|---|
| Frequency | Hz | 0 | 100 |
An example of the stimulation using normal mode at 40Hz along with the synchronisation output is shown below.
High frequency mode
High frequency mode provides a range of parameters for tonic stimulation at high frequencies. Stimulation is applied regularly at the specified frequency. The applied frequency can be adjusted at kHz resolution.
The configurable parameters are shown in the following table:
| Parameter | Units | Minimum | Maximum |
|---|---|---|---|
| Frequency | kHz | 0 | 10 |
An example of the stimulation using high frequency mode at 1kHz along with the synchronisation output is shown below.
Burst mode
Burst mode provides a range of parameters for applying burst stimulation. A fixed number of trigger pulses are sent at high frequency, with these bursts repeated at regular intervals. This stimulation setting is defined by the frequency, i.e. the number of bursts applied per second; the intra-burst frequency, i.e. the frequency of pulses within a burst; and the duration, i.e. the number of pulses within a burst.
The configurable parameters are shown in the following table:
| Parameter | Units | Minimum | Maximum |
|---|---|---|---|
| Frequency | Hz | 0 | 50 |
| Intra-burst frequency | kHz | 0 | 10 |
| Duration | Pulses | 0 | 20 |
An example of the stimulation using burst mode with a burst frequency of 40Hz, an intra-burst frequency of 1kHz and a burst duration of five pulses along with the synchronisation output is shown below.
