9.2.2.4. qumada.instrument.buffers.sr830_buffer

class qumada.instrument.buffers.sr830_buffer.SR830Buffer(device)

Bases: Buffer

Buffer for Stanford SR830

AVAILABLE_TRIGGERS: list[str] = ['external', 'trig_in_1']

ch1_names = ['X', 'R', 'X Noise', 'aux_in1', 'aux_in2']

ch2_names = ['Y', 'Phase', 'Y Noise', 'aux_in3', 'aux_in4']

force_trigger()

Triggers the trigger.

Return type:

None

is_finished()

True, if measurement is done and data has finished reading from the buffer.

Return type:

bool

is_ready()

True, if buffer is correctly initialized and ready to measure.

Return type:

bool

is_subscribed(parameter)

True, if the parameter is subscribed and saved in buffer.

Return type:

bool

property num_points: int | None

Number of points to write into buffer for each burst. Required to setup qcodes datastructure and to compare with max. buffer length.

read()

Read the buffer

Output is a dict with the following structure:

{
    "timestamps": list[float],
    "param1": list[float],
    "param2": list[float],
    ...
}

Return type:

dict

read_raw()

Read the buffer and return raw output.

Return type:

dict

setup_buffer(settings)

Sets instrument related settings for the buffer.

Return type:

None

start()

Start the buffer. This is not the trigger.

Return type:

None

stop()

Stop the buffer.

Return type:

None

subscribe(parameters)

Measure provided parameters with the buffer.

Return type:

None

property trigger: str | None

The parameter, that triggers the instruments buffer. Set the trigger parameter using a qcodes parameter.

unsubscribe(parameters)

Unsubscribe provided parameters, if they were subscribed.

Return type:

None