Scope

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The Module 'Scope' is designed for implementing oscilloscopes by creating Device Classes.

Device Class development

Supported parameters

An oscilloscope has many parameters that are needed before a certain configuration is reproduced. Sometimes it is easier to change parameters directly at the device. To not overwrite certain parameters when starting a measurment, we recommend to add "As is" to each ComboBox. In that case, the Device Class should not send any command to the oscilloscope.

TriggerSource

A ComboBox to provide possible trigger sources such as the channels of the oscilloscope or an external trigger in port

TriggerCoupling

A ComboBox to provide the trigger coupling that defines which mode is used to get triggered, e.g. it can be 'AC', 'DC', or high frequency ('HF').

TriggerSlope

A ComboBox to provide the trigger slope, e.g. a rising flank, a falling flank or both

TriggerLevel

A LineEdit to provide the trigger level at which the signal is recognized and the time is zeroed.

Acquisition

A ComboBox to provide how acquisition is done. Typically, the acquisition is done 'Continuous'. However, if the data related to a single trigger event needs to be measured, one should provide a mode like 'Single'.

Average

A ComboBox to provide typical values that can be used for averaging, e.g. 1, 2, 4, 8 ...

SamplingRate

A Line Edit to provide the numbers of sample per second.

TimeRange

A ComboBox to provide different modes that can be used to define the time span that is used for collecting the data.

TimeRangeValue

A LineEdit to get the number that is specifying the time range. For example, if TimeRange is 'Time range [s]' one can insert the time span of the captured signal. If the TimeRange is 'Time scale [s/div]' one has to insert the time span of a single division.

TimeOffsetValue

A LineEdit to get the offset time in seconds to shift x-axis horizontally.

Channel<i>

A CheckBox for each channel <i> that tells you whether the channel should be used or not.

Channel<i>_Name

The name that the user gave to channel <i>. Please use it do define self.variables accordingly.

Channel<i>_Range

The voltage range of channel <i>.

Channel<i>_Offset

The voltage offset of channel <i>.

Channel<i>_Impedance

The impedance value of channel <i>.

Channel<i>_ACDC

The coupling of channel <i>. Please use Channel<i>_Coupling for version >= 1.5.4.x

Channel<i>_Coupling

The coupling of channel <i>, e.g. 'AC' or 'DC'

Channel<i>_Probe

The probe of channel <i>. If not automatically detected one might have to provide options like '1:1' or '10:1'