Results 221 to 230 of about 46,876 (266)
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The diagnostic value of motor evoked potentials
Clinical Neurophysiology, 1999To assess the diagnostic usefulness of motor evoked potentials (MEPs) and to identify the optimal method for calculating the central conduction time. The test results were evaluated in a prospective study of 1023 neurological patients.We evaluated the correlation between clinical and electrophysiological findings, the accuracy, the sensitivity, the ...
V, Di Lazzaro +6 more
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Progressive motor quadriparesis with wasting: a diagnostic conundrum
BMJ Case Reports, 2022The case of a man in his early 30s, presenting with slowly progressive, asymmetrical onset, pure motor quadriparesis over 9 months with bulbar involvement, absence of upper motor neuron features and significant weight loss, is reported. In view of presentation with diffuse lower motor neuron involvement of short duration, the diagnostic possibilities ...
Samhita, Panda, Monalisa, Vegda
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Possibilities of motor oil continuous diagnostics
2015 38th International Spring Seminar on Electronics Technology (ISSE), 2015Connecting to motor aggregate reliability and operational life it is very important to reliably observe the oil change interval. Determination of critical parameters of motor oil is important for correct statement of its condition in engine. By implementation of sensor system which directly acquires several parameters simultaneously, it is possible to ...
Slavomir Kardos +2 more
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Diagnostic Possibilities of Induction Motor Bearing Currents
2021 XVIII International Scientific Technical Conference Alternating Current Electric Drives (ACED), 2021The paper deals with diagnostic possibilities of induction motor bearing currents. As one of the most common electrical machine mechanical faults, failures in bearings have been the diagnostic interest for a long time. With the ever-growing amount of motors running with variable speed drives, the problems regarding bearing currents and related damages ...
Karolina Kudelina +5 more
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Novel diagnostics and therapy of colonic motor disorders
Current Opinion in Pharmacology, 2011Colonic motor abnormalities are implicated in several gastrointestinal disorders including constipation, irritable bowel syndrome and functional diarrhoea. Defining the colonic abnormalities is difficult and several novel techniques including, high-resolution fibre optic manometry, wireless motility capsules, ultrasound and magnetic resonance imaging ...
P G, Dinning, S M, Scott
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Telemetry diagnostic capabilities for asynchronous motors
2012 XXth International Conference on Electrical Machines, 2012Diagnostic tests of electrical machines are part of improving operational reliability of these devices over a long period of time. This justifies the monitoring of machines, particularly those which do not have the reserve at the workplace: the power generators, hoisting machines in mines, etc.
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Cable aging influence on motor diagnostic system
IEEE Transactions on Dielectrics and Electrical Insulation, 2013It is now established that the turn-to-turn capacitance variation of electrical motor windings can be used as an insulation system aging indicator: turn insulation aging causes a significant increase of the corresponding capacitance and a decrease of several resonance frequencies in the upper part of the impedance spectrum of the motor windings. To set
S. Savin, S. Ait-Amar, D. Roger
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Non-invasive diagnostics of motor-operated valves
Proceedings of 1994 American Control Conference - ACC '94, 2005This paper is concerned with the development of data analysis methods to be used in a model-based approach to the online monitoring and diagnosis of motor-operated valves (MOVs). The technique to be utilized will include the extensive integration of mechanical and electrical measurements and signal processing. A torque estimator is developed and tested
null Jangbom Chai, R.H. Lyon, J.H. Lang
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A Diagnostic System for Vacuum Cleaner Motors
IFAC Proceedings Volumes, 2003Abstract A prototype of a diagnostic system for quality end-tests of vacuum cleaner motors is presented. The core of the system are four modules for features extraction based on vibration analysis, sound analysis, analysis of commutation and check of parity relations respectively.
Dejan Tinta +8 more
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Sensorless approach to on-line motor diagnostics
1997 IEEE/PCA Cement Industry Technical Conference. XXXIX Conference Record (Cat. No.97CH36076), 2002Loss of process, reduced productivity, equipment damage, safety issues and life extension have driven continuing research in the area of noninvasive online motor diagnostics to recognize incipient failures and avoid the catastrophic results. Breakthroughs have been made utilizing a variety of methods which can be applied on today's cost-effective ...
G.B. Kliman, J.G. Mazereeuw, S.C. Patel
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