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CHANGELOG¶

All notable changes to the .nde file format will be documented on this page. It is based on Keep a Changelog and adheres to Semantic Versioning.

[4.3.0] - June 15, 2026¶

Added¶

Eddy Current Testing (ECT) and Eddy Current Array (ECA) modality support. See the dedicated page for a full description.

  • New eddyCurrentProbe probe type, based on sensor groups and per-sensor offsets in a 2D surface-parallel coordinate system.
  • New EC wedge type for positioning ET probes relative to the specimen surface.
  • New eddyCurrent hardware acquisition process (frequency, drive amplitude, gain, channel mapping).
  • New impedanceTransformation software process for phase rotation and per-channel normalization of impedance data.
  • New eddyCurrentMix process for mixed-frequency signal processing.
  • New conductivity process for converting complex impedance into material conductivity and lift-off distance.
  • New layerDetection process.
  • New highPassFilter, lowPassFilter, figure6Filter, and figure8Filter spatial and temporal filter processes.
  • New mapToDescrete process for remapping allCycle acquisition data onto a regular discreteGrid.
  • New allCycle data mapping strategy for cycle-by-cycle storage of encoder positions.
  • New Polar dimension axis for rotational scanning configurations.
  • New Channel and AcquisitionCycle dataset axes for ET data.
  • New ET dataset data classes: Impedance and ImpedanceStatus. See supported datasets.
  • New rotary encoder modes Tach and Index for the encoder object.
  • New EC wedge orientation values FlipPrimary and FlipSecondary in addition to the existing Normal and Reverse.
  • New unspecifiedGeometry specimen type for acquisitions where the specimen geometry is unknown or not relevant.

[4.2.0] - October 16, 2025¶

Added¶

  • New SynchroGateRelative mode for TCG
  • New inverted parameter for encoder description

[4.1.0] - April 23, 2025¶

Added¶

  • Support of phased array angle beam raster scanning through a 4D dataset.
  • Support of scanning against \(V\) axis instead of \(U\) for specific configurations, such as ToFD parallel scanning and Raster scanning at 0°.

Changed¶

See also: Documentation updates.

[4.0.0] - November 12, 2024¶

The 4.0.0 version is a big leap and the changes are described in a dedicated section.

[3.3.0] - January 16, 2024¶

Added¶

  • The Pipe specimen now includes angularOpening, which is used to describe a curved part section.

[3.2.0] - September 28, 2023¶

Changed¶

  • elementQuantity property refers to a uniform definition of quantity using an integer data type.

Added¶

  • New planeWaveCapture group configuration.
  • New tandem PAUT group configuration.
  • Experimental elementary A-scan dataset using StackedAScan axis.
  • Experimental utMatrixCapture group with fullMatrixCapture configuration.
  • Improved object description reused for documentation.
  • Add id property to beams and dimensions array.

[3.1.1] - July 10, 2023¶

Added¶

  • Schema reorganization including new id reference.

[3.1.0] - April 21, 2023¶

Added¶

  • name and softwareProcess gain for tfmDescription.
  • uCoordinateOrientation for discreteGrid.
  • PCS for TOFD configuration.
  • customOverlay2D for plateGeometry and pipeGeometry.

Removed¶

  • exclusiveMinimum for longitudinal and transversal vertical wave attenuationCoefficient.
  • gateCscans dataset.
  • Undefined elementaryAscan dataset.

[3.0.1] - January 17, 2023¶

Added¶

  • Coherence data value unit for PCI.

Deprecated¶

  • gateCscans dataset.
  • Undefined elementaryAscan dataset.

[3.0.0] - December 20, 2022¶

  • Initial schema version supported.