A comparison of Multi Fibre and Single Fibre Optical Probes

    Dr P. Russhard, Rotadata, Derby, UK. 2015

    An opportunity arose in a BTT test on a gas turbine HP compressor and Fan to exchange single fibre optical probes for multi-fibre probes. An analysis of the data will highlight the differences between the data sets so that the audience can make an informed judgement as to the impact of probe technology upon BTT system capability. The techniques used to extract data will be based upon previous presentations at IIS conferences demonstrating the complete end to end BTT process. The presentation will be confined to vibration modes encountered during the engine test and therefore cannot be exhaustive but will give insight to both prove and system suppliers as to the effects of different probe technologies and perceived probe resolution.




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