qtt.measurements.acquisition package

Submodules

qtt.measurements.acquisition.configuration_storage module

Functionality to store and load instrument configurations.

qtt.measurements.acquisition.configuration_storage.load_configuration(file_path: str) → qilib.utils.python_json_structure.PythonJsonStructure[source]

Loads the instrument configuration from disk storage.

Parameters

file_path – The store file location on disk.

Returns

The loaded configuration from disk.

qtt.measurements.acquisition.configuration_storage.save_configuration(file_path: str, configuration: qilib.utils.python_json_structure.PythonJsonStructure) → None[source]

Saves the instrument configuration to disk storage.

Parameters

  • file_path – The store file location on disk.

  • configuration – The instrument configuration that needs to be stored to disk.

qtt.measurements.acquisition.uhfli_scope_reader module

Provides oscilloscope functionality for the Zurich Instruments UHFLI.

class qtt.measurements.acquisition.uhfli_scope_reader.UHFLIScopeReader(address)[source]

Bases: qtt.measurements.acquisition.interfaces.acquisition_scope_interface.AcquisitionScopeInterface

Represents an acquisition wrapper for acquiring data with the Zurich Instruments UHFLI.

acquire(number_of_averages: int, timeout: float = 30) → List[qilib.data_set.data_array.DataArray][source]

Collects records from the UHFLI.

Parameters

  • number_of_averages – The number of averages taken during acquiring.

  • timeout – The time the collecting of records can maximally take before raising an error.

Returns

A list with the recorded scope records as data arrays.

acquire_single_sample(channel: int, parameter: str, partial: bool = False) → Union[qcodes.instrument.parameter.Parameter, float][source]

Collect a single point for each added measurement signal.

Parameters

  • channel – Input channel that signal is acquired from.

  • parameter – Modulation parameter, ‘x’, ‘y’, ‘phi’ or ‘R’

  • partial – If True return this method as partial, else acquire a sample and return it.

Returns

This method as a partial method or single sample.

property enabled_channels

Gets the channel enabled states.

Returns

The channels which are set to be enabled.

get_nearest_sample_rate(sample_rate: float) → float[source]

Gets the nearest sample rate corresponding to the given value.

Parameters

sample_rate – A possible sample rate to check for a nearest actual settable sample rate value.

Returns

The nearest settable sample rate value on the UHFLI.

initialize(configuration: qilib.utils.python_json_structure.PythonJsonStructure) → None[source]

Applies the configuration to the UHFLI.

Parameters

configuration – The configuration with all the UHFLI settings.

property input_range

Gets the amplitude input range of the channels.

Returns

The amplitude input range of the channels set value.

property number_of_samples

Gets the sample count to take during a acquisition.

Returns

The number of samples set value.

property period

Gets the measuring period of the acquisition.

Returns

The measuring period set value in seconds.

property sample_rate

Gets the sample rate of the acquisition device.

Returns

The input range amplitude in Volt for each channel.

set_channel_limits(channel: int, lower_limit: float, upper_limit: float) → None[source]

Sets the upper and lower limit of the scope full scale range.

Parameters

  • channel – The input channel number.

  • lower_limit – The lower limit range.

  • upper_limit – The upper limit range.

set_input_signal(channel: int, attribute: Optional[str]) → None[source]

Adds an input channel to the scope.

Parameters

  • channel – The input channel number.

  • attribute – The input signal to acquire.

start_acquisition() → None[source]

Starts the acquisition mode of the scope in the UHFLI.

stop_acquisition() → None[source]

Stops the acquisition mode of the scope in the UHFLI.

property trigger_channel

Gets the external triggering channel.

Returns

Signal Input 1, Signal Input 2, Trig Input 1, Trig Input 2, Aux Output 1, Aux Output 2, Aux Output 3, Aux Output 4, Aux In 1 Ch 1, Aux In 1 Ch 2, Osc phi Demod 4, Osc phi Demod 8, AU Cartesian 1, AU Cartesian 2, AU Polar 1, AU Polar 2.

Return type

The trigger channel value. The possible trigger channel values are

property trigger_delay

Gets the delay in seconds between the external trigger and acquisition.

Returns

The scope trigger delay in seconds.

property trigger_enabled

Gets the external triggering enabled status.

Returns

The trigger enabled status set value.

property trigger_level

Gets the external triggering level in Volts.

Returns

The trigger level in Volts.

property trigger_slope

Gets the external triggering slope.

Returns

Rise, Fall, Both or None).

Return type

The scope trigger slope (possible values are

qtt.measurements.acquisition.uhfli_stimulus module

class qtt.measurements.acquisition.uhfli_stimulus.UHFLIStimulus(address: str)[source]

Bases: object

A wrapper that provides methods to control Lock-in of Zurich instrument’s UHF-LI devices.

connect_oscillator_to_demodulator(oscillator: int, demodulator: int) → None[source]

Connects an oscillator (1 - 8) to the given demodulator.

Parameters

  • oscillator – The oscillator number to connect to (1 - 8).

  • demodulator – Which demodulator the oscillator belongs to.

initialize(configuration: qilib.utils.python_json_structure.PythonJsonStructure) → None[source]

Apply configuration to the UHFLI.

Parameters

configuration – The configuration for the UHFLI.

set_demodulation_enabled(channel: int, is_enabled: bool) → None[source]

Enable data transfer in the demodulators.

Parameters

  • channel – The output channel number to enable (1 - 8).

  • is_enabled – True to enable and False to disable.

set_demodulator_signal_input(demodulator: int, input_channel: int) → None[source]

Set the signal demodulator input channel.

Parameters

  • demodulator – Which demodulator the channel belongs to.

  • input_channel – The input channel (1 or 2).

set_oscillator_frequency(oscillator: int, frequency: Optional[float] = None) → Optional[qcodes.instrument.parameter.Parameter][source]

Set the oscillators frequencies.

Parameters

  • oscillator – Output channel the the oscillator belongs to (1 - 8) with MF enabled.

  • frequency – Optional parameter that if not provided, this method returns a QCoDeS parameter that can be used to set the oscillator frequency. Allowed frequencies are 0 - 600 MHz.

set_output_enabled(output: int, is_enabled: bool) → None[source]

Control the outputs on the device.

Parameters

  • output – One of the two outputs on the device.

  • is_enabled – True to enable and False to disable.

set_signal_output_amplitude(channel: int, demodulator: int, amplitude: float) → None[source]

Set the amplitude of the output signal.

Parameters

  • channel – The output channel to set the amplitude on (1 - 8).

  • demodulator – Which demodulator the channel belongs to.

  • amplitude – Amplitude in volts, allowed values are 0.0 - 1.5 V.

set_signal_output_enabled(channel: int, demodulator: int, is_enabled: bool) → None[source]

Enable one of the 16 output amplitudes.

Parameters

  • channel – The output channel to enable (1 - 8).

  • demodulator – Which demodulator the channel belongs to.

  • is_enabled – True to enable and False to disable.