Digital Stimulus Waveforms

Digital pulse (fixed duration)

This produced a digital pulse on the selected output line of fixed duration. It is defined by 4 parameters.

Initial delay defines the delay before the start of the pulse.

Duration defines the duration of the digital pulse.

Invert Signal defines whether the digital pulse is an OFF-ON or an ON-OFF pulse. If set to No, the digital line is initially OFF (0V) and switches to ON (5V) during the pulse. If set to Yes, the digital line is initially ON (5V) and switches to OFF (0V) during the pulse.

The digital pulse element can be used to switch open or close valves controlling the flow of solutions over a cell. Multiple digital outputs can be used to simultaneously open one valve while another is closed.

Family of digital pulse (varying in duration)

This produced a digital pulse on the selected output line, with a duration which is incrementable between records. It is defined by 5 parameters.

Initial delay defines the delay before the start of the pulse.

Starting duration defines the duration of the first pulse in the protocol.

Increment by defines the amount that the duration is incremented between records.

Number of increments defines the number of increments in the protocol. (Note that, if there are any voltage waveform elements in use within the protocol, the number of increments defined here must be the same.)

Invert Signal defines whether the digital pulse is an OFF-ON or an ON-OFF pulse. If set to No, the digital line is initially OFF (0V) and switches to ON (5V) during the pulse. If set to Yes, the digital line is initially ON (5V) and switches to OFF (0V) during the pulse.

Train of digital pulses

This produces a series of digital pulses of fixed intervals and of fixed duration. It is defined by 5 parameters.

Initial delay defines the delay before the start of the first pulse in the series.

Pulse duration defines the duration of the each pulse in the series.

Inter-pulse interval defines the time interval between pulses in the series.

Number of pulses defines the number of pulses in the series.

Invert Signal defines whether the digital pulse is an OFF-ON or an ON-OFF pulse. If set to No, the digital line is initially OFF (0V) and switches to ON (5V) during the pulse. If set to Yes, the digital line is initially ON (5V) and switches to OFF (0V) during the pulse.

This element can be used to apply a rapid train of stimuli to a cell.