Fault detection and isolation of robot manipulators is a subject that has been widely investigated in the past decade and different methodologies have been proposed. However, there is still a lack of techniques that are adequate to a straightforward application to the detection of real fault in industrial robots. In this paper we propose a very simple but effective strategy for fault detection ...

Abstrac t This paper deals with an Extended Kalman Filter (EKF) based fault detection for inter-turn shortcircuit in Permanent Magnet Synchronous Generators (PMSG). A specific faulty model in d-q frame is developed to estimate the number of short-circuited turns which are used to a fault indicator setting up. Simulation results demonstrate the sensitivity and the robustness of the chosen indica...

Aircraft and spacecraft electrical power distribution systems are critical to overall system operation, but these systems may experience faults. Early fault detection makes it easier for system operators to respond and avoid catastrophic failures. This paper discusses a fault detection scheme based on a tunable generalized likelihood algorithm. We discuss the detector algorithm, and then demons...

The IC test industry has struggled .for more than 30 years to establish a test approach that would guarantee a low defect level to the customer. We propose a comprehensive strategy for testing CMOS ICs that uses defect classes based on measured defect electrilxd properti'es. Defect classes differ from traditional fault models. Our defect class approach requires that the test strategy match the ...

Aircraft and spacecraft electrical power distribution systems are critical to overall system operation, but these systems may experience faults. Early fault detection makes it easier for system operators to respond and avoid catastrophic failures. This paper discusses a fault detection scheme based on a tunable generalized likelihood algorithm. We discuss the detector algorithm, and then demons...

magnetotelluric (mt) method is a passive electromagnetic technique that uses the natural, time varying electric and magnetic field components measured at right angles at the surface of the earth to make inferences about the earth’s electrical structure which, in turn, can be related to the geology tectonics and subsurface conditions. reflection and refraction of electromagnetic (em) signals at ...

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In this work, spectral signal analyses are employed in fault detection and isolation scheme. The procedure was applied to detect the presence of fault in proces and suppose the processing in frequency domain of the data acquisition, which represent the known commands and the actual measure outcome. The approach has been applied to electrical motor and the results show that the fault detection s...

In this study, the analysis of effect loading on DGA results Paiton UAT 2A transformer units 1 and 2 was carried out using (Dissolved Gas Analysis) test tool with X-DGA kelman to determine gas content contained in oil or oil. The is a type oil-cooled distribution that uses Nytro Libra type. useful for insulating cooling media so does not get hot. there causes failure. failure called fault which...

The paper is concerned with the application of the Support Vector Machine to the discovering of the parametric fault in analog electrical circuits. The recognition of fault is based on the measurements of the accessible terminal voltage and current of the circuit at the set of frequencies. The SVM network fulfills the role of the recognizing system and of the classifier. The numerical results o...