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SIMON LAWES's Outputs (19)

Mathematical approach to the validation of field surface texture parameter software (2020)
Journal Article
Todhunter, L., Leach, R., Lawes, S., Harris, P., & Blateyron, F. (2020). Mathematical approach to the validation of field surface texture parameter software. Surface Topography: Metrology and Properties, 8(1), Article 015010. https://doi.org/10.1088/2051-672x/ab7367

A new method for performance validation of surface texture parameter calculation software is introduced, focussing on field surface texture parameters. Surface height functions are defined mathematically, either using Fourier series or polynomials, a... Read More about Mathematical approach to the validation of field surface texture parameter software.

Increasing throughput in x-ray computed tomography measurement of surface topography using sinogram interpolation (2019)
Journal Article
Körner, L., Lawes, S., Bate, D., Newton, L., Senin, N., & Leach, R. K. (2019). Increasing throughput in x-ray computed tomography measurement of surface topography using sinogram interpolation. Measurement Science and Technology, 30(12), Article 125002. https://doi.org/10.1088/1361-6501/ab37e5

© 2019 Crown copyright. Reproduced with the permission of the Controller of Her Majesty's Stationery Office. X-ray computed tomography (XCT) is a non-destructive imaging technique that has recently gained interest as a tool to measure surface topogra... Read More about Increasing throughput in x-ray computed tomography measurement of surface topography using sinogram interpolation.

Characterisation Of The Surface Topography Evolution Of An Ink-jet Printed Transparent Fluoroplastic With CSI (2019)
Presentation / Conference Contribution
Gomez, C., Campanelli, C., Su, R., Lawes, S., & Leach, R. (2019, July). Characterisation Of The Surface Topography Evolution Of An Ink-jet Printed Transparent Fluoroplastic With CSI. Poster presented at 22nd International Conference on Metrology & Properties of Surfaces, Lyon, France

We present the results of an empirical investigation into the evolution of the morphology of an ink jet printed trans parent polymer using coherence scanning interferometry (CSI). CSI is a high precision optical surface measuring technique, which ha... Read More about Characterisation Of The Surface Topography Evolution Of An Ink-jet Printed Transparent Fluoroplastic With CSI.

Mathematical approach to the validation of functional surface texture parameter software (2019)
Journal Article
Todhunter, L., Leach, R., Lawes, S., Harris, P., & Blateyron, F. (2019). Mathematical approach to the validation of functional surface texture parameter software. Surface Topography: Metrology and Properties, 7(1), Article 015020. https://doi.org/10.1088/2051-672X/ab07ca

A new method for performance validation of surface texture parameter calculation software is introduced, focussing on functional surface texture parameters. Material ratio curves are defined algebraically and used to calculate functional surface text... Read More about Mathematical approach to the validation of functional surface texture parameter software.

Development of mathematical reference standards for the validation of surface texture parameter calculation software (2018)
Presentation / Conference Contribution
Todhunter, L., Leach, R., Lawes, S., Blateyron, F., & Harris, P. (2018). Development of mathematical reference standards for the validation of surface texture parameter calculation software. In n/a

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.

Development of mathematically-defined surfaces (2017)
Presentation / Conference Contribution
Todhunter, L. D., Leach, R., Lawes, S., Harris, P., & Blateyron, F. (2017). Development of mathematically-defined surfaces.

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.

True-color 3D surface metrology for additive manufacturing using interference microscopy (2017)
Presentation / Conference Contribution
DiSciacca, J., Gomez, C., Thompson, A., Lawes, S., Leach, R., Colonna de Lega, X., & de Groot, P. (2017). True-color 3D surface metrology for additive manufacturing using interference microscopy.

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.

Industrial survey of ISO surface texture parameters (2017)
Journal Article
Todhunter, L. D., Leach, R., Lawes, S., & Blateyron, F. (2017). Industrial survey of ISO surface texture parameters. CIRP Journal of Manufacturing Science and Technology, 19, https://doi.org/10.1016/j.cirpj.2017.06.001

Results of an international survey are presented, detailing the use of surface texture parameters in industry. The survey received 179 responses from a total of 34 countries, revealing the use of a variety of parameters from ISO 4287, ISO 12085, ISO... Read More about Industrial survey of ISO surface texture parameters.

Results of an industrial survey on the use of surface texture parameters (2017)
Presentation / Conference Contribution
Todhunter, L. D., Leach, R., & Lawes, S. (2017). Results of an industrial survey on the use of surface texture parameters.

In 1999, CIRP conducted an industrial survey of the use of surface texture parameters [1]. In the seventeen years since, much has changed, with the most important advancement being the introduction of areal surface texture parameters as described in... Read More about Results of an industrial survey on the use of surface texture parameters.

Coherence scanning interferometry for additive manufacture (2017)
Presentation / Conference Contribution
Gomez, C., Thompson, A., DiSciacca, J., Lawes, S., & Leach, R. (2017). Coherence scanning interferometry for additive manufacture.

Additive manufacture (AM) of metal components is a rapidly maturing technology; but given the large number of interrelated process parameters, it remains difficult to control to high precision. It has been observed that processing conditions may be a... Read More about Coherence scanning interferometry for additive manufacture.

An industrial survey on the use of surface texture parameters (2017)
Presentation / Conference Contribution
Todhunter, L. D., Leach, R., & Lawes, S. D. (2017). An industrial survey on the use of surface texture parameters.

In 1999, CIRP conducted an industrial survey of the use of surface texture parameters [1]. In the seventeen years since, much has changed, with the most important advancement being the introduction of areal surface texture parameters as described in... Read More about An industrial survey on the use of surface texture parameters.

An analysis of type F2 software measurement standards for profile surface texture parameters (2017)
Journal Article
Todhunter, L. D., Leach, R. K., Lawes, S., & Blateyron, F. (2017). An analysis of type F2 software measurement standards for profile surface texture parameters. Measurement Science and Technology, 28(6), Article 065017. https://doi.org/10.1088/1361-6501/aa6924

This paper reports on an in-depth analysis of ISO 5436 part 2 type F2 reference software for the calculation of profile surface texture parameters that has been performed on the input, implementation and output results of the reference software devel... Read More about An analysis of type F2 software measurement standards for profile surface texture parameters.

Performance assessment of a new variable stiffness probing system for micro-CMMs (2016)
Journal Article
Alblahaihid, K., Kinnell, P., Lawes, S., Desgaches, D., & Leach, R. K. (2016). Performance assessment of a new variable stiffness probing system for micro-CMMs. Sensors, 16(4), Article 492. https://doi.org/10.3390/s16040492

When designing micro-scale tactile probes, a design trade-off must be made between the stiffness and flexibility of the probing element. The probe must be flexible enough to ensure sensitive parts are not damaged during contact, but it must be stiff... Read More about Performance assessment of a new variable stiffness probing system for micro-CMMs.

Comparison of two noise reduction methods in coherence scanning interferometry for surface measurement
Presentation / Conference Contribution
Gomez, C., Su, R., Lawes, S., & Leach, R. (2019, September). Comparison of two noise reduction methods in coherence scanning interferometry for surface measurement. Presented at 14th International Symposium of Measurement Technology and Intelligent Instruments (ISMTII2019), Niigata, Japan

Coherence scanning interferometry (CSI) can measure relatively flat surfaces with sub-nanometre precision, but the measurement noise may increase significantly if the intensity of the interferometric signal reduces when measuring non-flat surfaces or... Read More about Comparison of two noise reduction methods in coherence scanning interferometry for surface measurement.