dwfpy.analog_input.AnalogInputChannel

class AnalogInputChannel(module, channel)[source]

Bases: object

Represents an Analog Input channel.

Methods

`get_data`	Gets the acquired data samples.
`get_noise`	Gets the acquired noise samples.
`get_sample`	Gets the last ADC conversion sample.
`setup`	Sets up the channel for data acquisition.

Attributes

`adc_bits`	Gets the number bits used by the ADC.
`attenuation`	Gets or sets the channel attenuation.
`bandwidth`	Gets or sets the channel bandwidth in Hz.
`coupling`	Gets or sets the channel coupling.
`coupling_info`	Gets the supported channel coupling modes.
`device`	Gets the device.
`enabled`	Enables or disables the channel.
`filter`	Gets or sets the acquisition filter.
`filter_info`	Gets the supported acquisition filters.
`impedance`	Gets or sets the channel impedance in Ohms.
`index`	Gets the channel index.
`label`	Gets or sets the channel label.
`module`	Gets the Analog Input module.
`offset`	Gets or sets the channel offset in volts.
`offset_max`	Gets the maximum supported offset voltage.
`offset_min`	Gets the minimum supported offset voltage.
`offset_steps`	Gets the number of adjustable steps.
`range`	Gets or sets the channel range.
`range_info`	Gets the supported channel ranges.
`range_max`	Gets the maximum channel range.
`range_min`	Gets the minimum channel range.
`range_steps`	Gets the number of channel range steps.

property adc_bits: int

Gets the number bits used by the ADC.

Return type: int

property attenuation: float

Gets or sets the channel attenuation.

Return type: float

property bandwidth: float

Gets or sets the channel bandwidth in Hz.

Return type: float

property coupling: AnalogInputCoupling

Gets or sets the channel coupling.

Return type: AnalogInputCoupling

property coupling_info: Tuple[AnalogInputCoupling, ...]

Gets the supported channel coupling modes.

Return type: Tuple[AnalogInputCoupling, ...]

property device: Device

Gets the device.

Return type: Device

property enabled: bool

Enables or disables the channel.

Return type: bool

property filter: FilterMode

Gets or sets the acquisition filter.

Return type: FilterMode

property filter_info: Tuple[FilterMode, ...]

Gets the supported acquisition filters.

Return type: Tuple[FilterMode, ...]

get_data(first_sample=0, sample_count=- 1, raw=False)[source]

Gets the acquired data samples.

Before calling this function, call the ‘read_status()’ function to read the data from the device.

get_noise(first_sample=0, sample_count=- 1)[source]

Gets the acquired noise samples.

Before calling this function, call the ‘read_status()’ function to read the data from the device.

get_sample()[source]

Gets the last ADC conversion sample.

Before calling this function, call the ‘read_status()’ function to read the data from the device.

Return type: float

property impedance: float

Gets or sets the channel impedance in Ohms.

Return type: float

property index: int

Gets the channel index.

Return type: int

property label: str

Gets or sets the channel label.

Return type: str

property module: AnalogInput

Gets the Analog Input module.

Return type: AnalogInput

property offset: float

Gets or sets the channel offset in volts.

Return type: float

property offset_max: float

Gets the maximum supported offset voltage.

Return type: float

property offset_min: float

Gets the minimum supported offset voltage.

Return type: float

property offset_steps: int

Gets the number of adjustable steps.

Return type: int

property range: float

Gets or sets the channel range.

Return type: float

property range_info: Tuple[float, ...]

Gets the supported channel ranges.

Return type: Tuple[float, ...]

property range_max: float

Gets the maximum channel range.

Return type: float

property range_min: float

Gets the minimum channel range.

Return type: float

property range_steps: int

Gets the number of channel range steps.

Return type: int

setup(range=None, offset=None, coupling=None, bandwidth=None, attenuation=None, impedance=None, filter=None, enabled=True)[source]

Sets up the channel for data acquisition.

rangefloat, optional: The channel range in Volts.
offsetfloat, optional: The channel offset in Volts.
couplingstr or AnalogInputCoupling, optional: The channel coupling. Can be ‘dc’ or ‘ac’.
bandwidthfloat, optional: The channel bandwidth in Hz.
attenuationfloat, optional: The channel attenuation.
impedancefloat, optional: The channel impedance in Ohms.
filterstr or FilterMode, optional: The channel acquisition filter. Can be ‘decimate’, ‘average’, or ‘min-max’.
enabledbool, optional: If True, then the channel is enabled (default True).

Return type: None