Banca de DEFESA: RAQUEL NUNES PEREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAQUEL NUNES PEREIRA
DATE: 20/12/2023
TIME: 09:00
LOCAL: Google Meet - Link: meet.google.com/kdp-yogb-btx
TITLE:

Design of DGS Sensors for Monitoring Humidity in Civil Construction Materials

KEY WORDS:

DGS, planar sensor, humidity, civil construction.

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Telecomunicações
SPECIALTY: Teoria Eletromagnetica, Microondas, Propagação de Ondas, Antenas
SUMMARY:

Humidity monitoring is essential in the construction industry to ensure the durability of materials and prevent structural problems. In this study, the analysis and development of planar structures using the defect ground structure (DGS) technique and two-port resonator, for sensing applications, are performed. The operating principle consists of varying the resonant frequencies of the studied elements when the relative permittivity of the material under test (MUT) is changed. The effectiveness of the sensor is proven through the analysis of materials with previously known dielectric constants that validate its applicability. In this project, its application is directed to the determination of the percentage of water present in two samples of dry sand and to the monitoring of water loss in three specimens made of mortar. The prototype was manufactured and the preliminary results obtained in the measurements were compared with the results of other works, certifying the effectiveness of the presented sensor.

COMMITTEE MEMBERS:
Presidente - 3921178 - VALDEMIR PRAXEDES DA SILVA NETO
Interno - 6345784 - ADAILDO GOMES D ASSUNCAO
Externa ao Programa - 1804383 - CRISTHIANNE DE FATIMA LINHARES DE VASCONCELOS - UFRNExterno à Instituição - FRANCISCO DE ASSIS BRITO FILHO
Externo à Instituição - KLEBER CAVALCANTI CABRAL - UFERSA