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Get Aperture Time Info (G Dataflow)

Version:
    Last Modified: September 16, 2017

    Returns the DMM aperture time and the unit of measurement for aperture time.

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    session in

    Instrument identifier from previous NI-DMM nodes.

    Default: None

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    session out

    Instrument identifier for subsequent NI-DMM nodes.

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    aperture time

    Amount of time the DMM digitizes the input signal for a single measurement, not including settling time.

    This value is identical to the value of the Aperture Time property.

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    Aperture Time Units

    Units of aperture time.

    The value of this parameter is identical to the value of the Aperture Time Units property.

    Name Description
    SECONDS The aperture time is specified in seconds.
    POWER LINE CYCLES The aperture time is specified in power line cycles.
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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

    Web Server: Not supported in VIs that run in a web application

    Hardware Support:

    Table 1. Minimum, Maximum, and Valid Aperture Times
    PXI-4070, PXI-4071, PXI-4072
    • Minimum aperture time: 8.89 µs
    • Maximum aperture time: 149 s
    • Valid aperture times: any value between the minimum and maximum
    PXI-4065
    • Minimum aperture time: 333 µs
    • Maximum aperture time: 78.2 s
    • Valid aperture times: 333 µs, 666 µs, or an integer multiple of 1.11 ms
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    Note  

    Invalid aperture times will be coerced up to the next valid aperture time. If you set the number of averages directly, the total measurement time is aperture time × number of averages. This value must be less than 78.2 s.


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