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The need to reduce fuel consumption, minimize emissions, and improve levels of safety, comfort, and reliability is expected to result in a much higher demand for electric power in future cars. In order to develop the needed control algorithms and to optimize the required components some kind of virtual prototype environment is needed. Even so for most components good models already exist, an adequate...
Carbon fibre reinforced plastic (CFRP) materials are widely used in aircraft and wind turbine blades due to the low weight and high strength. Surface cracks, impact damage and delaminations are the most common defects for CFRP composites. In this paper, a pulsed eddy current (PEC) stimulated thermography is developed to detect and characterise these three types of defects from the heating patterns...
The paper presents a completely new realization of implicit RMS detector, employing dual-output second-generation current conveyors and metal-oxide-semiconductor transistors. The proposed circuit can be applied in measuring the RMS value of multiharmonic signals. The results of the calculations are verified using SPICE simulations.
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