All Outputs (61)

Verification of a rigorous 2D model of rough surface scattering (2018)
Conference Proceeding

A rigorous two-dimensional (2D) model of electromagnetic surface scatter has been developed, based on a boundary element method (BEM) established by Simonsen [1]. Simulated far-field scatter is compared to that measured from a laser scatterometer for... Read More about Verification of a rigorous 2D model of rough surface scattering.

Metrological design of calibration and benchmarking artefacts for an additive manufacturing system (2018)
Conference Proceeding

Development of mathematical reference standards for the validation of surface texture parameter calculation software (2018)
Conference Proceeding

A framework for the validation of surface texture parameter calculation software is proposed. The framework utilises mathematically defined surfaces and mathematically calculated surface texture parameter values to produce a reference against which t... Read More about Development of mathematical reference standards for the validation of surface texture parameter calculation software.

Curvature-based segmentation of powder bed point clouds for in-process monitoring (2018)
Conference Proceeding

This paper presents a curvature-based analysis of point clouds collected in-process with fringe projection in a polymer powder bed fusion process. The three-dimensional point clouds were obtained from outside of the build chamber with a fringe projec... Read More about Curvature-based segmentation of powder bed point clouds for in-process monitoring.

Correlating volume and surface features in additively manufactured metal parts (2018)
Conference Proceeding

Design of a multi-sensor in-situ inspection system for additive manufacturing (2018)
Conference Proceeding

Benchmarking of an additive manufacturing process (2018)
Conference Proceeding

Internal surface measurement by X-ray computed tomography: an additive manufacturing industrial case study (2018)
Conference Proceeding

A programmable software framework for the generation of simulated surface topography (2018)
Conference Proceeding

A flexible and programmable software framework has been developed that enables the creation of simulated, areal surface topography datasets. The framework allows the creation of surfaces through a layered approach where deterministic topographic stru... Read More about A programmable software framework for the generation of simulated surface topography.

Development of an X-ray simulator: from STTL file to grey scale image (2018)
Conference Proceeding

The effects of vibration on fringe projection systems (2018)
Conference Proceeding

Mechanical vibration noise is a significant source of error in precision measuring instruments. Errors due to vibration can be detected in measurement signals, and so methods to control mechanical vibration must be considered throughout the design pr... Read More about The effects of vibration on fringe projection systems.

Lateral error compensation for focus variation microscopy (2018)
Conference Proceeding

Focus variation microscopy measures both the areal form and areal surface texture of components. Improvements to the accuracy and precision of focus variation microscopes usually requires measurements with multiple image-fields to compensate lateral... Read More about Lateral error compensation for focus variation microscopy.

Measurement noise calibration, noise bandwidth specification and environment effects in a 3D point autofocusing instrument (2018)
Conference Proceeding

Flexible software framework for the generation of simulated surface topography (2018)
Conference Proceeding

Development of mathematically-defined surfaces (2017)
Conference Proceeding

New software has been developed that enables the creation of areal surface topography representations. The goal of this software package is to utilise the mathematically-defined surface representations in the development of surface texture parameter... Read More about Development of mathematically-defined surfaces.

Additively manufactured lattice structures for precision engineering applications (2017)
Conference Proceeding

Error modelling of a hybrid five degree of freedom mechanism for manipulation of high repetition rate laser microtargets (2017)
Conference Proceeding

Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing (2017)
Conference Proceeding

The mechanical performance of additively manufactured (AM) components remains an issue, limiting the implementation of AM technologies. In this work, a new method is presented, to examine the evolution of defects in an Inconel 718 two-bar test specim... Read More about Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing.

True-color 3D surface metrology for additive manufacturing using interference microscopy (2017)
Conference Proceeding

Coherence scanning interferometry (CSI) is widely used for surface topography characterisation. With the ability to measure both rough surfaces with the high slopes and optical finishes, CSI has made contibutions in fields from industrial machining t... Read More about True-color 3D surface metrology for additive manufacturing using interference microscopy.

Optimisation of surface topography characterisation for metal additive manufacturing using coherence scanning interferometry (2017)
Conference Proceeding

The surface topography of metal additive manufactured (AM) parts can be challenging to measure due to the presence of complex features, such as high slopes, step like recesses and protuberances, and local variations in reflectance. Recent innovations... Read More about Optimisation of surface topography characterisation for metal additive manufacturing using coherence scanning interferometry.