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Centre for Medical Science Technology Optical Developments in Medical Engineering Prof. P.J. Bryanston-Cross Presen

A series of Optical

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Centre for Medical Science Technology Optical Developments in Medical Engineering Prof. P.J. Bryanston-Cross Presen

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    5. Opera Singer

    7. Medical Applications Fundus Camera Technology Tonometer Diabetes probe Vitrectomy

    9. Active Non-Contacting Diabetes Probe 1 Year of research and the subject of a DTI Smart Award. Design and implementation of a low cost, on-line, non-contact, spectral testing device to be used as a Diabetes Probe.

    10. Diagnostic sensors for testing for diabetes

    12. Optical Tonometer Active Non-Contacting Glaucoma Probe (AGP) 3 years of research, laboratory prototype tested on human subjects Design and implementation of an active Non-Contacting Glaucoma Probe which has the potential to be used as a low cost, on-line testing device. The objective is to provide a low cost probe which could be used by mobile medics, small practices and surgeons in the third world, eliminating in some cases the need for contact methods of testing methods

    16. A high resolution low cost Loupe system 1 year Smart Award, 2 years research as part of an EU grant. The loupe is for use in the third world as a low cost operating stereoscopic system. It uses low cost plastic aspheric lenses. The lens system has been designed with a magnification of 3 at an object distance of 300 mm. Its optical resolution is 20 lines/mm It has been designed to be viewed by the eye, which requires the exit pupil of the lens to be focused at infinity. The operation of the lens is to minimise spherical and chromatic aberrations. This is achieved by a complex surface curvature and a specially designed spectral spatial filter.

    20. Industrial Applications Tomographic array Spectral probe Small Engine

    21. Tomographic measurement of heat release Part of a 3 year Faraday Intersect project with Rolls-Royce, CORUS and DERA as the industrial partners. � The Aim here is to find a SME partner interested to develop the approach as a testing instrument for Rolls Royce. The probe is constructed from a ring of fibre optics which record the light emitted from the within the combustor. A tomographic reconstruction is used to capture the emitted light and a 40 fibre optics placed in a ring around the combustor. The objective of the work is to measure the heat release from the combustor to a spatial resolution of 10mm and a temporal resolution of 600Hz.

    22. Tomographic array:

    23. Fibres

    24. Tomographic array

    25. Spectral Measurements in a Gas Turbine Engine A spectrometer on a chip has been fibre optic linked to a diagnostic probe. The probe has been used in the fuel injector within the combustion chamber of a gas turbine engine. Tests have been made at RAe Farnborough to show how a engine can be run at a minimal running condition with switching off the engine. � This work is part of the INTErSECT faraday Centre project: The Application of Data Fusion to a Multi Sensored Intelligent Engine. Its industrial partners are: Rolls-Royce, CORUS and DERA. The project represents 2 years of research work in the area.

    30. The Small Engine project The operating pressure and temperature of a I.C. engine is very similar to those of a gas turbine engine. As a result of this a small low cost test bed engine has been develop on which a series of novel instruments are in the process of development. In particular the engine is optically instrumented and has heat transfer gauges mounted on its head and piston. It is possible to also investigate the fundamental aspects of, for example direct injection. This work is part of the INTErSECT faraday Centre project: The Application of Data Fusion to a Multi Sensored Intelligent Engine. � It represents 2 years of research.

    31. Heat Transfer Thin film, constant current, Platinum resistance, thermometers. 90 kHz response Measure Heat Flux (Not capacity)

    32. Heat Transfer - Results Fired (note noise) Wall temp increases Interpretation

    33. Heat Transfer - Results Fired Note rise of thermocouple value

    34. Firing Probe

    35. Spectral Results

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