3.3.2. qupulse.hardware.dacs

class qupulse.hardware.dacs.AlazarCard(card, config: Optional[atsaverage.config.ScanlineConfiguration] = None)[source]

Bases: qupulse.hardware.dacs.dac_base.DAC

arm_program(program_name: str) → None[source]

Prepare the device for measuring the given program and wait for a trigger event.

property buffer_strategy: qupulse.hardware.dacs.alazar.BufferStrategy
property card: Any
clear() → None[source]

Clears all registered programs.

property config
property current_config
delete_program(program_name: str) → None[source]

Delete program from internal memory.

property mask_prototypes: Dict[str, Tuple[int, str]]
measure_program(channels: Iterable[str]) → Dict[str, numpy.ndarray][source]

Get all measurements at once and write them in a dictionary.

property record_size_factor: int

The total record size of each measurement gets extended to be a multiple of this. None means that the minimal value supported by the card is taken.

register_mask_for_channel(mask_id: str, hw_channel: int, mask_type='auto') → None[source]
Parameters

  • mask_id – Identifier of the measurement windows

  • hw_channel – Associated hardware channel (0, 1, 2, 3)

  • mask_type – Either ‘auto’ or ‘periodical

register_measurement_windows(program_name: str, windows: Dict[str, Tuple[numpy.ndarray, numpy.ndarray]]) → None[source]

Register measurement windows for a given program. Overwrites previously defined measurement windows for this program.

Parameters

  • program_name – Name of the program

  • windows – Measurement windows by name. First array are the start points of measurement windows in nanoseconds. Second array are the corresponding measurement window’s lengths in nanoseconds.

register_operations(program_name: str, operations) → None[source]

Register operations that are to be applied to the measurement results.

Parameters

  • program_name – Name of the program

  • operations – DAC specific instructions what to do with the data recorded by the device.

set_measurement_mask(program_name, mask_name, begins, lengths) → Tuple[numpy.ndarray, numpy.ndarray][source]

Set/overwrite a single the measurement mask for a program. Begins and lengths are in nanoseconds.

Parameters

  • program_name – Name of the program

  • mask_name – Name of the mask/measurement windows

  • begins – Staring points in nanoseconds

  • lengths – Lengths in nanoseconds

Returns

Measurement windows in DAC samples (begins, lengths)

class qupulse.hardware.dacs.DAC[source]

Bases: object

Representation of a data acquisition card

abstract arm_program(program_name: str) → None[source]

Prepare the device for measuring the given program and wait for a trigger event.

abstract clear() → None[source]

Clears all registered programs.

abstract delete_program(program_name) → None[source]

Delete program from internal memory.

abstract measure_program(channels: Iterable[str]) → Dict[str, numpy.ndarray][source]

Get the last measurement’s results of the specified operations/channels

abstract register_measurement_windows(program_name: str, windows: Dict[str, Tuple[numpy.ndarray, numpy.ndarray]]) → None[source]

Register measurement windows for a given program. Overwrites previously defined measurement windows for this program.

Parameters

  • program_name – Name of the program

  • windows – Measurement windows by name. First array are the start points of measurement windows in nanoseconds. Second array are the corresponding measurement window’s lengths in nanoseconds.

abstract register_operations(program_name: str, operations) → None[source]

Register operations that are to be applied to the measurement results.

Parameters

  • program_name – Name of the program

  • operations – DAC specific instructions what to do with the data recorded by the device.

abstract set_measurement_mask(program_name: str, mask_name: str, begins: numpy.ndarray, lengths: numpy.ndarray) → Tuple[numpy.ndarray, numpy.ndarray][source]

Set/overwrite a single the measurement mask for a program. Begins and lengths are in nanoseconds.

Parameters

  • program_name – Name of the program

  • mask_name – Name of the mask/measurement windows

  • begins – Staring points in nanoseconds

  • lengths – Lengths in nanoseconds

Returns

Measurement windows in DAC samples (begins, lengths)

Modules

qupulse.hardware.dacs.alazar

qupulse.hardware.dacs.alazar2

qupulse.hardware.dacs.dac_base