Buscar
Mostrando ítems 31-40 de 4160
Potential use of the veris apparent EC sensor to predict soil texture under the semi-arid conditions of central Arizona
(2009-12-01)
The operational details of the apparent electrical conductivity (ECa) sensor manufactured by Veris Technologies have been extensively documented in literature reports, but the geographical distribution of these research ...
Improvement of flight performance for an UAV system
(Instituto Tecnológico de Costa Rica, 2016)
In the recent years UAV´s have become very popular. Due to the acquire fame of these devices, a wide number of applications have been developed in order to satisfy a demanding market that seeks new ways to improve the ...
Desenvolvimento de sistemas de controle para motores de ímãs permanentes para tração de veículos elétricos
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2020-02-27)
This master thesis presents the development of an experimental setup to drive
and control of permanent magnet synchronous motors with external rotor. The main
characteristics of these electric motors are related to their ...
High Voltage Optical Sensor Insulation Using PLA (Polylactic Acid)
(Ieee, 2018-01-01)
Electric power systems, especially after the advent of smart grids, require intelligent voltage and current meters devoted to energy billing, control, protection and quality monitoring. Novel Optical Voltage Sensors (OVS) ...
High voltage optical sensor insulation using PLA (Polylactic Acid)
(2019-01-25)
Electric power systems, especially after the advent of smart grids, require intelligent voltage and current meters devoted to energy billing, control, protection and quality monitoring. Novel Optical Voltage Sensors (OVS) ...
Desenvolvimento de sensores e instrumentação aplicados no projeto de equipamentos analisadores de qualidade de energia elétrica
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2012-11-30)
A poor quality power causes large losses to society. Thus it is used an equipment named power quality analyzers for magnitude measurement of these disturbances and determine the causes of these abnormality. The principal ...
Avaliação de um sensor de resistencia eletrica e sua correlação com atributos do solo
(2010)
The electrical measures of the soil have been used as variables that correlate with its characteristics. This study aimed at developing an electrical capacitance sensor of low cost, to evaluate its performance on the field ...
Red de sensores para el análisis de vibración en puentes utilizando acelerómetros triaxiales
(Instituto Tecnológico de Costa Rica, 2018)
In the evaluation of the state of the bridges in our country, one of the tests applied is the vibration analysis procedure, in which it is possible to observe the dynamic behavior of the structure and to take the corresponding ...
Optimization of an analogue circuit design for a portable nanoparticle detection device (POND) using printed sensors
(Instituto Tecnológico de Costa Rica, 2018)
The growing use of nanoparticles in different sectors of the industry has generated interest in their study to understand the effect they have on the human body and the environment. The Neuroelectronics group at the Technical ...