Distributed temperature and strain sensing within metallic ALM structures

研究新的策略和方法，使基于光纤的传感器与金属增材层制造（ALM）组件的集成。该项目的目标应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，开发提高ALM系统内纤维气密性的技术，并探索生产各种金属基板的选择。ii）改进将纤维嵌入试样内的制造技术，增加试样尺寸，设计可附着的试样和试样生产的自动化。iii）开发用于生产多光栅平面条的技术。“许多这样的条带可以串联连接，使阵列结构能够用于测试和纳入演示器。该项目的主要目标应该是生产嵌入式温度传感器阵列，但是如果时间/限制允许，试样/条带必须设计成具有能够牢固地机械固定到底层部件的特征（即正在测量的组件），并且必须了解阵列中的测量值与表面的测量值的比较情况。

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.