Quantum-composers 9250 Series Manual do Utilizador descarregar pdf (Página 10)

9250 Manual Version 1.2 | Quantum Composers

Channel Timer Functions

The Channel Timer functions as a non-retriggerable, delayed, one shot pulse generator. This

means that the timer will only generate one delayed pulse for every start pulse received.

Once the channel timer has started counting, additional start pulses will be ignored until the

pulse has been completed (non-retriggerable). The start pulse for each channel is provided

by the internal T

pulse generated by the internal system timer. Whether or not a pulse is

generated for each T

pulse is determined by the Channel Mode Generator. Standard modes

include:

 Normal

A pulse is generated for each T

pulse.

 Single Shot

One pulse is generated for the first T

pulse, after

which the output is inhibited.

 Burst

‘N’ number of pulses are generated for each T

pulse, after which the output is inhibited.

 Duty Cycle

‘N’ number of pulses are produced, one for each

pulse, after which ‘M’ number of pulses will be

inhibited, one for each T

pulse. The cycle is then

repeated for each subsequent T

pulse.

A Different mode may be selected for each channel, allowing a wide variety of output

combinations. Each output may also be independently disabled or gated (using the external

gate input).

Digital Output Multiplexer

The outputs of each of the Channel Timers are routed to a set of multiplexers. This allows

routing of any or all Channel Timers to any or all of the units’ outputs. In the normal mode of

operation, the output of the n

Channel Timer is routed to the n

output connector. As an

example, if a double pulse is required on Channel A, one can multiplex the Channel A timer

with the Channel B timer, then adjust each timer to provide the necessary pulses. Only the

timing parameters are multiplexed together, not the actual output amplitudes.

Dependent & Independent Timing Events (Sync Function)

The 9250 allows the user to control the relationship between the Channel Timers by setting

the sync source for each timer. Independent events are all timed relative to the internal T

start pulse. Dependent events may be linked together by setting the sync source to the

controlling event. This allows the instrument to match the timed events and adjustments can

be made in one event without detuning the timing between it and the dependent event.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 50 51

Comentários a estes Manuais

Sem comentários

Quantum-composers 9250 Series Manual do Utilizador Página 10

Comentários a estes Manuais

Manuais e produtos relacionados com Geradores Quantum-composers 9250 Series