Returns an array of previously measured LCR data on the specified channel that have been taken and stored in a buffer.

To use this VI:

Note This function is not supported by all instruments. Refer to Supported VIs by Device for information about supported instruments.


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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle identifies a particular instrument session.

  • cstr.png channel name —

    channel name specifies the channel from which to fetch data. You can only fetch data from one channel at a time.

    Specify the channel using the form PXI1Slot3/0, where PXI1Slot3 is the instrument resource name and 0 is the channel.

  • ci32.png count (1) —

    count (1) specifies the number of measurements to fetch.

  • cdbl.png timeout (1.0) —

    timeout (1.0) specifies the maximum time allowed for this VI to complete, in seconds. If the VI does not complete within this time interval, NI-DCPower returns an error.

    Note When setting the timeout interval, ensure you take into account any triggers so that the timeout interval is long enough for your application.
  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • ii32.png actual count —

    actual count indicates the number of measured values actually retrieved from the specified channel.

  • iivrn.png instrument handle out —

    instrument handle out passes the handle used to identify the session in all subsequent NI-DCPower VI calls.

  • i1dcclst.png measurements —

    measurements returns an array of LCR measurement data.

  • idbl.png V DC —

    V DC is the measured DC voltage, in volts.

  • idbl.png I DC —

    I DC is the measured DC current, in amps.

  • idbl.png stimulus frequency —

    stimulus frequency is the frequency of the LCR test signal, in Hz.

  • icdb.png AC voltage —

    AC voltage is the measured AC voltage, in volts RMS.

  • icdb.png AC current —

    AC current is the measured AC current, in amps RMS.

  • icdb.png Z —

    Z is the complex impedance.

  • idbl.png Z magnitude —

    Z magnitude is the magnitude of the complex impedance, in ohms.

  • idbl.png Z theta —

    Z theta is the impedance phase angle, in degrees.

  • icdb.png Y —

    Y is the complex admittance.

  • idbl.png Y magnitude —

    Y magnitude is the magnitude of the complex admittance, in siemens.

  • idbl.png Y theta —

    Y theta is the admittance phase angle, in degrees.

  • idbl.png Ls —

    Ls is the inductance, in henrys, as measured using a series circuit model.

  • idbl.png Cs —

    Cs is the capacitance, in farads, as measured using a series circuit model.

  • idbl.png Rs —

    Rs is the resistance, in ohms, as measured using a series circuit model.

  • idbl.png Lp —

    Lp is the inductance, in henrys, as measured using a parallel circuit model.

  • idbl.png Cp —

    Cp is the capacitance, in farads, as measured using a parallel circuit model.

  • idbl.png Rp —

    Rp is the resistance, in ohms, as measured using a parallel circuit model.

  • idbl.png D —

    D is the dissipation factor of the circuit.

    The dimensionless dissipation factor is directly proportional to how quickly an oscillating system loses energy. D is the reciprocal of Q, the quality factor.

  • idbl.png Q —

    Q is the quality factor of the circuit.

    The dimensionless quality factor is inversely proportional to the degree of damping in a system. Q is the reciprocal of D, the dissipation factor.

  • iu16.png measurement mode —

    measurement mode returns the measurement mode.

    SMU (1061)

    The channel(s) are operating as a power supply/SMU.
    LCR (1062)

    The channel(s) are operating as an LCR meter.
  • ibool.png DC in compliance —

    DC in compliance indicates whether the output was in DC compliance at the time the measurement was taken.

  • iu8.png Pad 0 —

  • ibool.png AC in compliance —

    AC in compliance indicates whether the output was in AC compliance at the time the measurement was taken.

  • iu8.png Pad 1 —

  • ibool.png unbalanced —

    unbalanced indicates whether the bridge was unbalanced at the time the measurement was taken.

  • iu8.png Pad 2 —

  • idbl.png Reserved 1 —

  • idbl.png Reserved 2 —

  • idbl.png Reserved 3 —

  • idbl.png Reserved 4 —

  • idbl.png Reserved 5 —

  • idbl.png Reserved 6 —

  • idbl.png Reserved 7 —

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.