Search Results - "Tyrer, J.R."

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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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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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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Manipulation of the Fourier Components of Speckle Fringe Patterns as Part of an Interferometric Analysis Process by Kerr, D., Santoyo, F. Mendoza, Tyrer, J.R.

“…A Fourier filtration algorithm has been applied to speckled fringe patterns, as obtained with the electronic speckle pattern interferometer. The Fourier power…”
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An improved maximum permissible exposure meter for safety assessments of laser radiation by Corder, D.A., Evans, D.R., Tyrer, J.R.

“…Current interest in laser radiation safety requires demonstration that a laser system has been designed to prevent exposure to levels of laser radiation…”
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An intelligent maximum permissible exposure meter for safety assessments of laser radiation by Corder, D.A., Evans, D.R., Tyrer, J.R.

“…There is frequently a need to make laser power or energy density measurements when determining whether radiation from a laser system exceeds the Maximum…”
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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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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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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 electronic speckle pattern shearing interferometry by Tyrer, J.R., Petzing, J.N.

“…An analysis of the out-of-plane shearing interferometer has been performed which shows that production of in-plane strain partial derivatives is possible,…”
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Analysis of power ultrasonic components using shearing interferometry by Petzing, J.N., Tyrer, J.R.

“…The design and analysis of high power ultrasonic machining components have previously relied on empirical calculations and simple, ineffective experimentation…”
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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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IMPROVED INTERFEROMETRIC TECHNIQUES FOR MEASURING FLEXTENSIONAL TRANSDUCER VIBRATION PATTERNS UNDERWATER by Petzing, J.N., Tyrer, J.R., Oswin, J.R.

“…The design of flextensional transducers involves a two-stage process. Firstly finite element analysis (FE) is used to model the transducers in order to predict…”
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High power laser beam delivery monitoring for laser safety by Corder, D.A., Evans, D.R., Tyrer, J.R., Freeland, C.M., Myler, J.K.

“…The output of high power lasers used for material processing presents extreme radiation hazards. In normal operation this hazard is removed by the use of local…”
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A technique for the indexed assessment of fumes generated by high-power laser processing by Roach, R. J., Raymond, E. A., Tyrer, J. R., Sharp, B. L.

“…Information presented by other workers on fumes generated during high-power CO sub(2) laser processing tends in most cases to be empirical and qualitative in…”
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