nibcq.LCRTestParameters

class nibcq.LCRTestParameters

Bases: nibcq.measurement.ConfigFileSupport

Test parameters specific to LCR Meter (PXIe-4190) ACIR measurements.

Unlike SMU/DMM parameters, LCR does NOT use powerline_frequency. The LCR hardware handles noise rejection internally.

Supports two ways to create instances: 1. Direct instantiation with keyword arguments 2. Loading from JSON file via from_file() classmethod

cable_length

Cable length setting. Default is NI_STANDARD_1M (1 meter).

Type:

nidcpower.CableLength

voltage_range

Peak voltage range (10V or 40V), converted to RMS internally. Default is PEAK_10V (7V RMS).

Type:

LCRVoltageRange

current_amplitude

AC current amplitude in Amperes RMS. Range: 7.08e-9 A to 0.707 A. Default is 0.07 A.

Type:

float

open_compensation_enabled

Enable open compensation from onboard storage.

Type:

bool

short_compensation_enabled

Enable short compensation from onboard storage.

Type:

bool

load_compensation_enabled

Enable load compensation from onboard storage. Note: Load compensation requires both open AND short to be enabled.

Type:

bool

Examples

>>> # Direct instantiation
>>> params = LCRTestParameters(
...     voltage_range=LCRVoltageRange.PEAK_10V,
...     current_amplitude=0.07,
...     open_compensation_enabled=True,
... )
>>> # From JSON file
>>> params = LCRTestParameters.from_file("config/lcr_config.json")
classmethod from_json(json_data: Dict[str, Any]) → LCRTestParameters

Create LCRTestParameters instance from JSON dictionary.

Parameters:

json_data (Dict[str, Any]) – Dictionary containing LCR configuration data.

Returns:

Instance configured from JSON data.

Return type:

LCRTestParameters

Raises:
classmethod from_file(file_path: str) → LCRTestParameters

Create LCRTestParameters instance from JSON configuration file.

Parameters:

file_path (str) – Path to JSON configuration file.

Returns:

Instance configured from file.

Return type:

LCRTestParameters

Raises: