Distributed temperature and strain sensing within metallic ALM structures

研究将基于光纤的传感器与金属增材层制造（ALM）组件集成的新策略和方法。该项目的目标应该是开发和展示生产金属嵌入式传感器阵列的能力，以实现分布式温度和应变传感。i)增加对纤维金属界面的理解，开发技术以提高ALM系统内纤维的密封性，并探索生产各种金属基板的选择。ii)改进在纸面内嵌入纤维的制造技术，增加纸面尺寸，设计可附纸面和纸面生产自动化。3)多光栅平面“条带”生产技术的发展。许多这些条带可以串联起来，使阵列结构能够进行测试和并入演示器。该项目的主要目标应该是生产一个嵌入式温度传感器阵列，但如果时间/限制允许，也需要配置应变测量。贴片/贴片的设计必须具有能够对底层组件（即被测量的组件）进行坚固机械固定的功能，并且必须能够将阵列中的测量值与表面的测量值进行比较。

To investigate novel strategies and approaches that enable the integration of optical fibre based sensors with metal additive layer manufactured (ALM) components. The goal of the project should be to develop and demonstrate the ability to produce arrays of metal embedded sensors to enable distributed temperature and strain sensing.i) Increase understanding of fibre-metal interfaces, develop techniques to improve fibre hermaticity within ALM systems and explore options for producing various metal substrates.ii) Improve manufacturing techniques for embedding fibres within coupons, increase coupon size, design attachable coupon and automation of coupon production.iii) Development of techniques for producing multi-grating planar 'strips.' A number of these strips could them be connected in series enabling array construction for testing and incorporation into demonstrator.The primary goal of the project should be to produce an embedded array of temperature sensors however if time/constraints permit, collocated strain measurements would also be desirable.The coupons/strips must be designed with features that enable robust mechanical fixing to underlying components (i.e. the component that is being measured), and there must be an appreciation how measurements in the array compare to those of the surface.