Source code for quantify_scheduler.operations.acquisition_library

# Repository: https://gitlab.com/quantify-os/quantify-scheduler
# Licensed according to the LICENCE file on the main branch

"""Standard acquisition protocols for use with the quantify_scheduler."""

from __future__ import annotations

import warnings
from typing import Any

import numpy as np

from quantify_core.utilities import deprecated
from quantify_scheduler.enums import BinMode, TimeRef, TimeSource
from quantify_scheduler.operations.operation import Operation
from quantify_scheduler.resources import DigitalClockResource


[docs] class Acquisition(Operation): """ An operation representing data acquisition at the quantum-device abstraction layer. An Acquisition must consist of (at least) an AcquisitionProtocol specifying how the acquired signal is to be processed, and an AcquisitionChannel and AcquisitionIndex specifying where the acquired data is to be stored in the RawDataset. N.B. This class helps differentiate an acquisition operation from the regular operations. This enables us to use :func:`~.quantify_scheduler.schedules._visualization.pulse_diagram.plot_acquisition_operations` to highlight acquisition pulses in the pulse diagrams. """
@deprecated("1.0", Acquisition)
[docs] class AcquisitionOperation(Acquisition): """Deprecated alias.""" pass
[docs] class Trace(Acquisition): """ The Trace acquisition protocol measures a signal s(t). Only processing performed is rescaling and adding units based on a calibrated scale. Values are returned as a raw trace (numpy array of float datatype). Length of this array depends on the sampling rate of the acquisition device. .. important:: The exact duration of this operation, and the possible bin modes may depend on the control hardware. Please consult your hardware vendor's :ref:`Reference guide` for more information. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. duration The acquisition duration in seconds. acq_channel The data channel in which the acquisition is stored, is by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a memory location that already contains values. Which bin mode can be used for Trace acquisitions may depend on the hardware. ``BinMode.AVERAGE``, the default, works on most hardware. This bin mode stores the weighted average value of the new result and the old values. ``BinMode.FIRST`` is used for hardware where only the result of the first acquisition in a Schedule is stored, e.g. for a Trace acquisition with Qblox QTM modules. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, duration: float, port: str, clock: str, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.AVERAGE, t0: float = 0, ) -> None: if not isinstance(duration, float): duration = float(duration) if isinstance(bin_mode, str): bin_mode = BinMode(bin_mode) super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [], "duration": duration, "t0": t0, "port": port, "clock": clock, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "protocol": "Trace", "acq_return_type": np.ndarray, } ] self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class WeightedIntegratedSeparated(Acquisition): r""" Weighted integration acquisition protocol where two sets weights are applied separately to the real and imaginary parts of the signal. Weights are applied as: .. math:: \widetilde{A} = \int \mathrm{Re}(S(t))\cdot W_A(t) \mathrm{d}t .. math:: \widetilde{B} = \int \mathrm{Im}(S(t))\cdot W_B(t) \mathrm{d}t Parameters ---------- waveform_a The complex waveform used as integration weights :math:`W_A(t)`. waveform_b The complex waveform used as integration weights :math:`W_B(t)`. port The acquisition port. clock The clock used to demodulate the acquisition. duration The acquisition duration in seconds. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.APPEND. phase The phase of the pulse and acquisition in degrees, by default 0. t0 The acquisition start time in seconds, by default 0. Raises ------ NotImplementedError """ def __init__( self, waveform_a: dict[str, Any], waveform_b: dict[str, Any], port: str, clock: str, duration: float, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, phase: float = 0, t0: float = 0, ) -> None: if phase != 0: raise NotImplementedError("Non-zero phase not yet implemented") super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [waveform_a, waveform_b], "t0": t0, "clock": clock, "port": port, "duration": duration, "phase": phase, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "protocol": "WeightedIntegratedSeparated", "acq_return_type": complex, } ] self._update() # certain fields are required in the acquisition data if "acq_return_type" not in self.data["acquisition_info"][0]: self.data["acquisition_info"][0]["acq_return_type"] = complex self.data["acquisition_info"][0]["protocol"] = "WeightedIntegratedSeparated" def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class SSBIntegrationComplex(Acquisition): """ Single sideband integration acquisition protocol with complex results. A weighted integrated acquisition on a complex signal using a square window for the acquisition weights. The signal is demodulated using the specified clock, and the square window then effectively specifies an integration window. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. duration The acquisition duration in seconds. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.AVERAGE. phase The phase of the pulse and acquisition in degrees, by default 0. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, port: str, clock: str, duration: float, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.AVERAGE, phase: float = 0, t0: float = 0, ) -> None:
[docs] waveform_i = { "port": port, "clock": clock, "t0": t0, "duration": duration, "wf_func": "quantify_scheduler.waveforms.square", "amp": 1, }
[docs] waveform_q = { "port": port, "clock": clock, "t0": t0, "duration": duration, "wf_func": "quantify_scheduler.waveforms.square", "amp": (0 + 1j), }
if phase != 0: raise NotImplementedError("Non-zero phase not yet implemented") super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [waveform_i, waveform_q], "t0": t0, "clock": clock, "port": port, "duration": duration, "phase": phase, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "acq_return_type": complex, "protocol": "SSBIntegrationComplex", } ] self._update() # certain fields are required in the acquisition data if "acq_return_type" not in self.data["acquisition_info"][0]: self.data["acquisition_info"][0]["acq_return_type"] = complex self.data["acquisition_info"][0]["protocol"] = "SSBIntegrationComplex" def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class ThresholdedAcquisition(Acquisition): """ Acquisition protocol allowing to control rotation and threshold. This acquisition protocol is similar to the :class:`~.SSBIntegrationComplex` acquisition protocol, but the complex result is now rotated and thresholded to produce a "0" or a "1", as controlled by the parameters for rotation angle `<qubit>.measure.acq_rotation` and threshold value `<qubit>.measure.acq_threshold` in the device configuration (see example below). The rotation angle and threshold value for each qubit can be set through the device configuration. .. admonition:: Note Thresholded acquisition is currently only supported by the Qblox backend. .. admonition:: Examples .. jupyter-execute:: from quantify_scheduler import Schedule from quantify_scheduler.device_under_test.transmon_element import BasicTransmonElement from quantify_scheduler.operations.acquisition_library import ThresholdedAcquisition # set up qubit qubit = BasicTransmonElement("q0") qubit.clock_freqs.readout(8.0e9) # set rotation and threshold value rotation, threshold = 20, -0.1 qubit.measure.acq_rotation(rotation) qubit.measure.acq_threshold(threshold) # basic schedule schedule = Schedule("thresholded acquisition") schedule.add(ThresholdedAcquisition(port="q0:res", clock="q0.ro", duration=1e-6)) Parameters ---------- port : str The acquisition port. clock : str The clock used to demodulate the acquisition. duration : float The acquisition duration in seconds. acq_channel : int The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index : int The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode : BinMode or str Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.AVERAGE. feedback_trigger_label : str The label corresponding to the feedback trigger, which is mapped by the compiler to a feedback trigger address on hardware, by default None. phase : float The phase of the pulse and acquisition in degrees, by default 0. t0 : float The acquisition start time in seconds, by default 0. """ def __init__( self, port: str, clock: str, duration: float, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.AVERAGE, feedback_trigger_label: str | None = None, phase: float = 0, t0: float = 0, acq_rotation: float = 0, acq_threshold: float = 0, ) -> None:
[docs] waveform_i = { "port": port, "clock": clock, "t0": t0, "duration": duration, "wf_func": "quantify_scheduler.waveforms.square", "amp": 1, }
[docs] waveform_q = { "port": port, "clock": clock, "t0": t0, "duration": duration, "wf_func": "quantify_scheduler.waveforms.square", "amp": (0 + 1j), }
if phase != 0: raise NotImplementedError("Non-zero phase not yet implemented") super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [waveform_i, waveform_q], "t0": t0, "clock": clock, "port": port, "duration": duration, "phase": phase, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "acq_return_type": np.uint32, "protocol": "ThresholdedAcquisition", "feedback_trigger_label": feedback_trigger_label, "acq_threshold": acq_threshold, "acq_rotation": acq_rotation, }, ] self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class NumericalSeparatedWeightedIntegration(WeightedIntegratedSeparated): r""" Subclass of :class:`~WeightedIntegratedSeparated` with parameterized waveforms as weights. A WeightedIntegratedSeparated class using parameterized waveforms and interpolation as the integration weights. Weights are applied as: .. math:: \widetilde{A} = \int \mathrm{Re}(S(t)\cdot W_A(t) \mathrm{d}t .. math:: \widetilde{B} = \int \mathrm{Im}(S(t))\cdot W_B(t) \mathrm{d}t Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. weights_a The list of complex values used as weights :math:`A(t)` on the incoming complex signal. weights_b The list of complex values used as weights :math:`B(t)` on the incoming complex signal. weights_sampling_rate The rate with which the weights have been sampled, in Hz. By default equal to 1 GHz. Note that during hardware compilation, the weights will be resampled with the sampling rate supported by the target hardware. interpolation The type of interpolation to use, by default "linear". This argument is passed to :obj:`~scipy.interpolate.interp1d`. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.APPEND. phase The phase of the pulse and acquisition in degrees, by default 0. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, port: str, clock: str, weights_a: list[complex] | np.ndarray, weights_b: list[complex] | np.ndarray, weights_sampling_rate: float = 1e9, interpolation: str = "linear", acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, phase: float = 0, t0: float = 0, ) -> None:
[docs] t_samples = np.arange(len(weights_a)) / weights_sampling_rate
[docs] weights_a = np.array(weights_a)
[docs] weights_b = np.array(weights_b)
[docs] waveforms_a = { "wf_func": "quantify_scheduler.waveforms.interpolated_complex_waveform", "samples": weights_a, "t_samples": t_samples, "interpolation": interpolation, }
[docs] waveforms_b = { "wf_func": "quantify_scheduler.waveforms.interpolated_complex_waveform", "samples": weights_b, "t_samples": t_samples, "interpolation": interpolation, }
[docs] duration = len(t_samples) / weights_sampling_rate
super().__init__( waveform_a=waveforms_a, waveform_b=waveforms_b, port=port, clock=clock, duration=duration, acq_channel=acq_channel, acq_index=acq_index, bin_mode=bin_mode, phase=phase, t0=t0, ) self.data["name"] = self.__class__.__name__ self.data["acquisition_info"][0][ "protocol" ] = "NumericalSeparatedWeightedIntegration" self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] weights_a = np.array2string( acq_info["waveforms"][0]["samples"], separator=", ", precision=9 ) weights_b = np.array2string( acq_info["waveforms"][1]["samples"], separator=", ", precision=9 ) t_samples = acq_info["waveforms"][0]["t_samples"] weights_sampling_rate = 1 / (t_samples[1] - t_samples[0]) port = acq_info["port"] clock = acq_info["clock"] interpolation = acq_info["waveforms"][0]["interpolation"] acq_channel = acq_info["acq_channel"] acq_index = acq_info["acq_index"] bin_mode = acq_info["bin_mode"].value phase = acq_info["phase"] t0 = acq_info["t0"] return ( f"{self.__class__.__name__}(weights_a={weights_a}, weights_b={weights_b}, " f"{weights_sampling_rate=}, {port=}, {clock=}, {interpolation=}, " f"{acq_channel=}, {acq_index=}, {bin_mode=}, {phase=}, {t0=})" ) def __repr__(self) -> str: return str(self)
[docs] class NumericalWeightedIntegrationComplex(WeightedIntegratedSeparated): """Deprecated, renamed to :class:`~NumericalSeparatedWeightedIntegration`.""" def __new__(cls, *args, **kwargs) -> NumericalSeparatedWeightedIntegration: """Return :class:`~NumericalSeparatedWeightedIntegration`.""" warnings.warn( ( f"{NumericalWeightedIntegrationComplex.__name__} is " f"deprecated and will be removed in quantify-scheduler>=0.20.0. Use " f"{NumericalSeparatedWeightedIntegration.__name__} instead." ), FutureWarning, ) return NumericalSeparatedWeightedIntegration(*args, **kwargs)
[docs] class NumericalWeightedIntegration(NumericalSeparatedWeightedIntegration): """ Subclass of :class:`~NumericalSeparatedWeightedIntegration` returning a complex number. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. weights_a The list of complex values used as weights :math:`A(t)` on the incoming complex signal. weights_b The list of complex values used as weights :math:`B(t)` on the incoming complex signal. weights_sampling_rate The rate with which the weights have been sampled, in Hz. By default equal to 1 GHz. Note that during hardware compilation, the weights will be resampled with the sampling rate supported by the target hardware. t The time values of each weight. This parameter is deprecated in favor of ``weights_sampling_rate``. If a value is provided for ``t``, the ``weights_sampling_rate`` parameter will be ignored. interpolation The type of interpolation to use, by default "linear". This argument is passed to :obj:`~scipy.interpolate.interp1d`. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.APPEND. phase The phase of the pulse and acquisition in degrees, by default 0. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, port: str, clock: str, weights_a: list[complex] | np.ndarray, weights_b: list[complex] | np.ndarray, weights_sampling_rate: float = 1e9, interpolation: str = "linear", acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, phase: float = 0, t0: float = 0, ) -> None: super().__init__( port=port, clock=clock, weights_a=weights_a, weights_b=weights_b, weights_sampling_rate=weights_sampling_rate, interpolation=interpolation, acq_channel=acq_channel, acq_index=acq_index, bin_mode=bin_mode, phase=phase, t0=t0, ) self.data["acquisition_info"][0]["protocol"] = "NumericalWeightedIntegration" self._update()
[docs] class TriggerCount(Acquisition): """ Trigger counting acquisition protocol returning an integer. The trigger acquisition mode is used to measure how many times the trigger level is surpassed. The level is set in the hardware configuration. .. important:: The exact duration of this operation, and the possible bin modes may depend on the control hardware. Please consult your hardware vendor's :ref:`Reference guide` for more information. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. duration The duration of the operation in seconds. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "distribution" which stores the count value of the new result and the old register value, by default BinMode.APPEND. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, port: str, clock: str, duration: float, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, t0: float = 0, ) -> None: if bin_mode == BinMode.AVERAGE: warnings.warn( ( f"{bin_mode} is deprecated for the TriggerCount acquisition protocol, " f"and will be removed in quantify-scheduler>=0.24.0. " f"Use {BinMode.DISTRIBUTION} instead, which has the same effect." ), FutureWarning, ) bin_mode = BinMode.DISTRIBUTION if bin_mode == BinMode.DISTRIBUTION and acq_index != 0: # In average mode the count distribution is measured, # and currently we do not support multiple indices for this, # or starting the counting from a predefined count number. raise NotImplementedError( "Using nonzero acq_index is not yet implemented for AVERAGE bin mode for " "the trigger count protocol" ) super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [], "t0": t0, "clock": clock, "port": port, "duration": duration, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "acq_return_type": int, "protocol": "TriggerCount", } ] self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class TimetagTrace(Acquisition): """ The TimetagTrace acquisition protocol records timetags within an acquisition window. .. important:: The exact duration of this operation, and the possible bin modes may depend on the control hardware. Please consult your hardware vendor's :ref:`Reference guide` for more information. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. duration The acquisition duration in seconds. acq_channel The data channel in which the acquisition is stored, is by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Only "BinMode.APPEND" is available at the moment; this option concatenates timetag results with the same acquisition channel and index. time_ref Selects the time reference that the timetag is recorded in relation to. String enumeration, one of: * start (default): record relative to the start of the window. * end: record relative to the end of the window. Note that this always yields a negative timetag. * first: syntactic sugar for first#, where # is the current channel. * timestamp: record relative to the timestamp marked using the ``Timestamp`` operation. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, duration: float, port: str, clock: str = DigitalClockResource.IDENTITY, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, time_ref: TimeRef | str = TimeRef.START, t0: float = 0, ) -> None: if not isinstance(duration, float): duration = float(duration) if isinstance(bin_mode, str): bin_mode = BinMode(bin_mode) super().__init__(name=self.__class__.__name__) self.data["acquisition_info"] = [ { "waveforms": [], "duration": duration, "t0": t0, "port": port, "clock": clock, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, # time_source is not settable, because all timetags will be returned # instead of just one. It is fixed to TimeSource.FIRST # because the instrument coordinator uses this to calculate the # relative timestamps. "time_source": TimeSource.FIRST, "time_ref": time_ref, "protocol": "TimetagTrace", "acq_return_type": np.ndarray, } ] self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)
[docs] class Timetag(Acquisition): """ Acquire a single timetag per acquisition index. .. important:: The exact duration of this operation, and the possible bin modes may depend on the control hardware. Please consult your hardware vendor's :ref:`Reference guide` for more information. Parameters ---------- port The acquisition port. clock The clock used to demodulate the acquisition. duration The acquisition duration in seconds. acq_channel The data channel in which the acquisition is stored, by default 0. Describes the "where" information of the measurement, which typically corresponds to a qubit idx. acq_index The data register in which the acquisition is stored, by default 0. Describes the "when" information of the measurement, used to label or tag individual measurements in a large circuit. Typically corresponds to the setpoints of a schedule (e.g., tau in a T1 experiment). bin_mode Describes what is done when data is written to a register that already contains a value. Options are "append" which appends the result to the list or "average" which stores the weighted average value of the new result and the old register value, by default BinMode.APPEND. time_source Selects the timetag data source for this acquisition type. String enumeration, one of: * ``first`` (default): record the first timetag in the window. * ``second``: record the second timetag in the window. Can be used to measure pulse distance when combined with first as reference. * ``last``: record the last timetag in the window. time_ref Selects the time reference that the timetag is recorded in relation to. String enumeration, one of: * ``start`` (default): record relative to the start of the window. * ``end``: record relative to the end of the window. Note that this always yields a negative timetag. * ``first``: record relative to the first timetag in the window. * ``timestamp``: record relative to the timestamp marked using the :class:`~quantify_scheduler.operations.pulse_library.Timestamp` operation. t0 The acquisition start time in seconds, by default 0. """ def __init__( self, duration: float, port: str, clock: str = DigitalClockResource.IDENTITY, acq_channel: int = 0, acq_index: int = 0, bin_mode: BinMode | str = BinMode.APPEND, time_source: TimeSource | str = TimeSource.FIRST, time_ref: TimeRef | str = TimeRef.START, t0: float = 0, ) -> None: super().__init__(name=self.__class__.__name__) if isinstance(time_source, str): time_source = TimeSource(time_source) if isinstance(time_ref, str): time_ref = TimeRef(time_ref) self.data["acquisition_info"] = [ { "waveforms": [], "t0": t0, "clock": clock, "port": port, "duration": duration, "acq_channel": acq_channel, "acq_index": acq_index, "bin_mode": bin_mode, "time_source": time_source, "time_ref": time_ref, "acq_return_type": float, "protocol": "Timetag", } ] self._update() def __str__(self) -> str: acq_info = self.data["acquisition_info"][0] return self._get_signature(acq_info)