Conventional fiber Bragg grating sensors have a few limitations, such as limited interrogation resolution and speed and difficulty in separating different measurands. In this article, microwave photonic techniques applied to fiber Bragg grating sensors to improve the interrogation resolution and speed are discussed. Experimental results to validate the techniques are provided.

Recent research on fibre optic long-period gratings (LPGs) is reviewed with emphasis placed upon the characteristics of LPGs that make them attractive for applications in sensing strain, temperature, bend radius and external index of refraction. The prospect of the development of multi-parameter sensors, capable of simultaneously monitoring a number of these measurands will be discussed.

The presented review gives reliable information about the currently used measurement instrumentation in parabolic trough fields and recent monitoring approaches. usually built-in equipment solar field, clamp-on systems for flexible measurements of temperature flow, irradiance measurements, standard meteorological equipment, laboratory devices heat transfer fluid analyses instruments related to ...

In this work, we propose the finite-element-based mathematical model of metal-inducer system. This system consists a coil with put-on C-shaped ferromagnets. We study how measurands inducer, such as voltage and uncompensated force acting on metal, depend parameters. variate geometry to estimate boundary effect impact. Also, depends ferromagnets' spacing their number. The inhomogeneity electric c...

The market for nano-additive materials has been growing exponentially since 2012, with almost 5040 consumer products containing nanoparticles in 2021. In parallel, the increasing recommendations, definitions and legislations underline need traceability of manufactured methods able to identify quantify “nano” dimensional character product. From a multi-technic approach, this paper aims compare m...

The results of automatic discrimination between weather and sea clutter using S-band dual-polarization Doppler weather radar are presented. The data were collected with the NCAR SPOL radar located in the Pacific shoreline near Seattle, USA. The multiparameter dataset includes backscattered power P (or radar reflectivity Z), Doppler velocity V, spectrum width σv, differential reflectivity ZDR (p...

In a series of exploratory experiments we investigated interrelations between structure and shape of architectural indoor spaces on the one hand, and affective experience and navigation behaviour on the other hand. For this, isovist-based descriptions of 16 virtual indoor scenes were correlated with behavioural data from the experimental tasks. For all tasks-two active navigation tasks and an i...