Helena G. Ramos

A Four-Terminal Water-Quality-Monitoring Conductivity Sensor

Pedro M. Ramos, J. M. Dias Pereira, Helena G. Ramos et al. · IEEE Transactions on Instrumentation and Measurement · 2008 · 103 citations

Electrical Engineering, Environmental Monitoring, Engineering +14

The Lift-Off Effect in Eddy Currents on Thickness Modeling and Measurement

Jakub Král, Radislav Šmíd, Helena G. Ramos et al. · IEEE Transactions on Instrumentation and Measurement · 2013 · 93 citations

Magnetism, Electrical Engineering, Engineering +15

Liftoff insensitive thickness measurement of aluminum plates using harmonic eddy current excitation and a GMR sensor

A. Lopes Ribeiro, Helena G. Ramos, J. Couto Arez · Measurement · 2012 · 82 citations

Electrical Engineering, Vibrations, Engineering +5

GMR array uniform eddy current probe for defect detection in conductive specimens

Octavian Postolache, A. Lopes Ribeiro, Helena G. Ramos · Measurement · 2013 · 67 citations

Optical Eddy Current, Engineering, Nondestructive Testing +4

Magnetic sensors assessment in velocity induced eddy current testing

T. Rocha, Helena G. Ramos, A. Lopes Ribeiro et al. · Sensors and Actuators A Physical · 2015 · 60 citations

Optical Eddy Current, Engineering, Magnetic Measurement +5