Class AnalogInput

Represents an operator that generates a sequence of voltage measurements from one or more DAQmx analog input channels.

AnalogInput configures and starts a data acquisition task for sampling voltage measurements from one or more physical analog input channels. Samples from each channel will be collected in a sample buffer, where each row corresponds to a channel in the acquisition task, and each column to a sample from each of the channels. The order of the channels follows the order in which you specify the channels in the Channels property.

If no input source is specified, data will be collected asynchronously every time a new buffer is filled.

Alternatively, if an input observable sequence is provided, a new data buffer will be collected every time a new notification is emitted by the input source.

Inheritance

Object

Source<Mat>

AnalogInput

Inherited Members

Object.ToString()

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Namespace: Bonsai.DAQmx

Assembly: Bonsai.DAQmx.dll

Syntax

public class AnalogInput : Source<Mat>

Properties

ActiveEdge

Gets or sets a value specifying on which edge of a clock pulse sampling takes place.

Declaration

public SampleClockActiveEdge ActiveEdge { get; set; }

Property Value

Type	Description
NationalInstruments.DAQmx.SampleClockActiveEdge

BufferSize

Gets or sets the number of samples to acquire, for finite samples, or the size of the buffer for continuous sampling.

Declaration

public int BufferSize { get; set; }

Property Value

Type	Description
Int32

Channels

Gets the collection of analog input channels from which to acquire voltage samples.

Declaration

public Collection<AnalogInputChannelConfiguration> Channels { get; }

Property Value

Type	Description
Collection<AnalogInputChannelConfiguration>

SampleMode

Gets or sets a value specifying whether the acquisition task will acquire a finite number of samples or if it continuously acquires samples.

Declaration

public SampleQuantityMode SampleMode { get; set; }

Property Value

Type	Description
NationalInstruments.DAQmx.SampleQuantityMode

SampleRate

Gets or sets the sampling rate for acquiring voltage measurements, in samples per second.

Declaration

public double SampleRate { get; set; }

Property Value

Type	Description
Double

SamplesPerChannel

Gets or sets the number of samples per channel in each output buffer. If not specified, the number of samples will be set to the size of the buffer.

Declaration

public int? SamplesPerChannel { get; set; }

Property Value

Type	Description
Nullable<Int32>

SignalSource

Gets or sets the optional source terminal of the clock. If not specified, the internal clock of the device will be used.

Declaration

public string SignalSource { get; set; }

Property Value

Type	Description
String

Methods

Generate()

Generates an observable sequence of voltage measurements from one or more DAQmx analog input channels.

Declaration

public override IObservable<Mat> Generate()

Returns

Type	Description
IObservable<Mat>	A sequence of 2D Mat objects storing the voltage samples. Each row corresponds to a channel in the acquisition task, and each column to a sample from each of the channels. The order of the channels follows the order in which you specify the channels in the Channels property.

Overrides

Bonsai.Source<OpenCV.Net.Mat>.Generate()

Generate<TSource>(IObservable<TSource>)

Generates an observable sequence of voltage measurements from one or more DAQmx analog input channels, where each new buffer is emitted only when an observable sequence emits a notification.

Declaration

public IObservable<Mat> Generate<TSource>(IObservable<TSource> source)

Parameters

Type	Name	Description
IObservable<TSource>	source	The sequence containing the notifications used for emitting sample buffers.

Returns

Type	Description
IObservable<Mat>	A sequence of 2D Mat objects storing the voltage samples. Each row corresponds to a channel in the acquisition task, and each column to a sample from each of the channels. The order of the channels follows the order in which you specify the channels in the Channels property.

Type Parameters

Name	Description
TSource	The type of the elements in the source sequence.