We present the implementation of optical load sensors utilizing mechanically induced reversible sampled fiber Bragg gratings (SFBGs). The load is measured by the reflectivity of the first-order Fourier component of the induced SFBGs. The theoretical and experimental characterization indicates that such SFBGs can be tailored to realize load sensors with high sensitivity of near-linear response and free of influence from environmental and system noises.
This paper presents a novel algorithm for controlling a new endurance test rig for the validation of a safety switch of the Cortech HealthCare Ltd shower and commode chair. The paper outlines the design of the algorithm as well as the main concept and criteria together with the validation and testing methods. In order to validate the algorithm, a set of preliminary trials is also presented.
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