Search Results - "Tyrer, J R"

Visualising scattering underwater acoustic fields using laser Doppler vibrometry by Harland, A.R., Petzing, J.N., Tyrer, J.R.

“…Analysis of acoustic wavefronts are important for a number of engineering design, communication and health-related reasons, and it is very desirable to be able…”
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The role of light in measuring ocular biomechanics by Wilson, A, Marshall, J, Tyrer, J R

“…The cornea is a highly specialised tissue with a unique set of biomechanical properties determined by its complex structure. The maintenance of these…”
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The use of holographic optical elements (HOE's) to investigate the use of a flat irradiance profile in the control of heat absorption in wire-fed laser cladding by Goffin, N.J., Higginson, R.L., Tyrer, J.R.

“…•Holographic optics were used to compare Gaussian and flat square laser beams.•The flat square beam gave wetting at a reduced power density.•The flat square…”
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Using wire shaping techniques and holographic optics to optimize deposition characteristics in wire-based laser cladding by Goffin, N. J., Higginson, R. L., Tyrer, J. R.

“…In laser cladding, the potential benefits of wire feeding are considerable. Typical problems with the use of powder, such as gas entrapment, sub-100% material…”
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Application and assessment of laser Doppler velocimetry for underwater acoustic measurements by Harland, A.R., Petzing, J.N., Tyrer, J.R., Bickley, C.J., Robinson, S.P., Preston, R.C

“…The majority of traditional methods for making underwater acoustic pressure measurements involve placing all or part of a measurement transducer in the…”
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Analysis of mutually incoherent symmetrical illumination for electronic speckle pattern shearing interferometry by Román, J. F., Moreno, V., Petzing, J. N., Tyrer, J. R.

“…A speckle shearing interferometer has been designed using symmetrical mutually incoherent illumination, in an effort to provide measurements of in-plane…”
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Microstructural characterization of autogenous laser welds on 316L stainless steel using EBSD and EDS by KELL, J., TYRER, J. R., HIGGINSON, R. L., THOMSON, R. C.

“…Summary This research is concerned with autogenous welding of 316L stainless steel and the microstructure generated by such a process. Autogenous welding does…”
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Phase-stepped ESPI and moiré interferometry for measuring stress-intensity factor and J integral by MOORE, A. J, TYRER, J. R

“…Electronic-speckle-pattern interferometry and moire interferometry were used to calculate K(I) and J for compact tension specimens. Automated-fringe-pattern…”
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Analysis of loaded mandible behaviour using speckle pattern interferometry by Roman, J. F., Petzing, J. N., Tyrer, J. R.

“…Orthognatic surgeons have a requirement for the measurement of stress distribution within the human lower jaw, in order to aid and improve surgical procedures…”
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The effect of metallographic structure on clamped plate vibration characteristics by PETZING, J. N, TYRER, J. R

“…The vibration response of a square clamped plate is dependent on the metallographic structure of the material used. Analytical studies of such systems have…”
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NON-INVASIVE MEASUREMENTS OF UNDERWATER PRESSURE FIELDS USING LASER DOPPLER VELOCIMETRY by HARLAND, A.R., PETZING, J.N., TYRER, J.R.

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In-plane pulsed carrier speckle interferometry for structural surface intensity measurement by N. Petzing, J. R. Tyrer, J.

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Geometrically qualified ESPI vibration analysis of an engine by Farrant, D.I., Petzing, J.N., Tyrer, J.R.

“…This paper presents an application in the automotive industry where a combination of electronic speckle-pattern interferometry and laser doppler velocimetry…”
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Using wire shaping techniques and holographic optics to optimize deposition characteristics in wire-based laser cladding by Goffin, N. J., Higginson, R. L., Tyrer, J. R.

“…In laser cladding, the potential benefits of wire feeding are considerable. Typical problems with the use of powder, such as gas entrapment, sub-100% material…”
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Wavefront divergence: A source of error in quantified speckle shearing data by Abdullah, W. S. Wan, Petzing, J. N., Tyrer, J. R.

“…Divergent laser illumination is commonly used in current designs of commercial electronic speckle pattern shearing interferometry (ESPSI) or shearography, for…”
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ESPI non-destructive testing of GRP composite materials containing impact damage by Zhang, Z.Y., Richardson, M.O.W., Wisheart, M., Tyrer, J.R., Petzing, J.

“…Recent developments in electronic speckle pattern interferometry (ESPI) pioneered by the authors have highlighted the potential for applying the technique to…”
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In-plane pulsed carrier speckle interferometry for structural surface intensity measurement by Petzing, J. N., Tyrer, J. R.

“…Experimental validation of structural intensity analytical and Finite Element calculations has traditionally relied on accelerometer and strain gauge…”
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Pulsed carrier out-of-plane speckle interferometry for transient vibration analysis by Petzing, J. N., Davila, A., Kerr, D., Tyrer, J. R.

“…An out-of-plane pulsed electronic speckle pattern interferometer has been developed which incorporates novel Pockels-cell-based optics in the reference path…”
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Three-dimensional human femoral strain analysis using ESPI by Tyrer, J.R., Heras-Palou, C., Slater, T.

“…With age, disease or injury the joints in the human body can wear out or bones may even fail catastrophically. In many cases it is possible to replace joints…”
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Phase-stepped ESPI and moiré interferometry for measuring stress-intensity factor andJ integral by Moore, A. J., Tyrer, J. R.

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