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This paper presents a novel probe design that uses a rotating current excitation scheme and giant magnetoresi-stance (GMR) sensors for steam generator tube inspection. Rotating eddy currents in the tube wall under test is induced using a pair of axial and circumferential excitation coils. A circumferential array of GMR sensors measures the radial component of the magnetic field. The perturbation in...
Conductive silicone keypads are widely applied in many electrical products. However, they are still followed the plug-in mounting design up to now. In this study, in accordance with the development direction of Surface Mounted Technology (SMT) microelectronics packaging components, a SMT silicone keypad in quad flat no lead (QFN) form is proposed. First, the SMT silicone keypad is modeled by using...
This paper addresses the problem of designing distributed feedback laws to fore the outputs of mobile robots to follow geometric paths while holding a desired formation pattern. The solution to formation problem, unfolds in two basic parts. Firstly, a path following control law based on Lyapunov and backstepping is designed out to drive each robot to its desired path regardless of the temporal speed...
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