A simple dielectric resonator-based sensor for temperature measurement

A Modified Formula for Microwave Measurement of Dielectric Loss Using a Closed Cylindrical Cavity Dielectric Resonator

This paper provides a modified formula for calculating dielectric loss of dielectric resonator of working in TE01δ mode in closed cavity. The measurement system is divided into six regions. Based on analyzing the formula of loss tangent published in literatures, a quality factor of a substrate is created, and a modified formula is proposed. Validating the modified formula, with three substrates...

ZST Dielectric Resonator for Far-Field Passive High Temperature Sensing

Dielectrically-Loaded Cylindrical Resonator-Based Wireless Passive High-Temperature Sensor

The temperature sensor presented in this paper is based on a microwave dielectric resonator, which uses alumina ceramic as a substrate to survive in harsh environments. The resonant frequency of the resonator is determined by the relative permittivity of the alumina ceramic, which monotonically changes with temperature. A rectangular aperture etched on the surface of the resonator works as both...

Dielectric multilayer-based fiber optic sensor enabling simultaneous measurement of humidity and temperature.

A multilayer-based fiber optic sensor enabling simultaneous measurement of humidity and temperature is proposed and demonstrated. The sensitive elements were multilayer coatings consisting of nano-porous TiO(2) and SiO(2) films, which were deposited on fiber end-face to form a Fabry-Perot (F-P) filter structure. Relative-humidity (RH) sensing is correlated with the shift of interference fringe ...

Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements

We propose and theoretically demonstrate a bottle resonator sensor with a nanoscale altitude and with alength several of hundreds of microns made on the top of the fiber with a radius of tens microns for refractive index and temperature sensor applications. The whispering gallery modes (WGMs) in the resonators can be excited with a taper fiber placed on the top of the resonator. These sensors c...