Results 211 to 220 of about 1,547,632 (266)

Estimating the Eddy-Current Modeling Error

IEEE Transactions on Magnetics, 2008
The eddy-current model is an approximation of the full Maxwell equations. We will give estimates for the modeling error and show how the constants in the estimates are influenced by the geometry of the problem. Additionally, we analyze the asymptotic behavior of the modeling error when the angular frequency tends to zero.
Schmidt, Kersten, Sterz, Oliver, Hiptmair, Ralf   +2 more
openaire   +2 more sources

Error neutralised switched-current comparator

ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003
This paper describes an error-neutralised switched-current comparator, which makes use of cross-coupled capacitors to compensate conductance errors resulting from both the overlap capacitances and the channel length modulation effect in the comparator's memory stage.
Apisak Worapishet, John B. Hughes, Christofer Toumazou   +2 more
openaire   +1 more source

Compensation of Current Measurement Error for Current-Controlled PMSM Drives

IEEE Transactions on Industry Applications, 2012
Accurate measurement of phase current is crucial in a current-controlled permanent-magnet synchronous machine (PMSM) drive system. Current measurement error directly deteriorates torque control performance. This paper analyzes effects of the current measurement error on the phase current and the output voltage of the current controller.
Myoungho Kim, Seung-Ki Sul, Junggi Lee
openaire   +1 more source

Current transformer error correction

2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015
This paper presents the development of micro-processor based device with ability to decrease protection-type current transformer measurement error in the area of small currents. Measurement transformers are available with a high precision class of 0.2 and 0.5 and maximal measurable current up to double rated value.
Aleksandrs Dolgicers, Jevgenijs Kozadajevs   +1 more
openaire   +1 more source

ON THE CONSTANT‐CURRENT ERROR IN SKIN RESISTANCE MEASUREMENT

Psychophysiology, 1965
ABSTRACTA substantial reduction in skin resistance (SR) is produced by a rise in induced voltage. This indicates that with a constant‐current circuit, variations in voltage can have a significant effect on the SR level. Therefore, SR levels obtained with a constant‐current and constant‐voltage circuits were compared for a group of Ss. The higher the SR
R C, Wilcott, L J, Hammond
openaire   +2 more sources

Capacitive Error in Current Comparators

IEEE Transactions on Instrumentation and Measurement, 1964
The equations for the capacitive error of various constructions of audio-frequency current comparators are derived and discussed. The experimental procedure for trimming a comparator using an excitation winding is presented. The interrelationship between sensitivity and accuracy is indicated.
openaire   +1 more source

Error neutralisation in switched current memory cells

ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003
This paper demonstrates that high performance operation of switched-current memory cells can be achieved by neutralisation of the cell's errors using gate-drain capacitive feedback. Simulation indicates that this technique can achieve 9-10 bit performance at a sampling frequency of 100 MS/s.
John B. Hughes, Kenneth W. Moulding
openaire   +1 more source

Current Design with Minimum Error in Transcranial Direct Current Stimulation

2018
As a non-invasive brain stimulation technology, transcanial direct current stimulation (tDCS) has been recently attracting more and more attention in research and clinic applications due to its convenient implementation and modulation of the brain functionality.
Jing Qin 0003, Yushan Wang, Wentai Liu
openaire   +1 more source

Current strategies for the treatment of inborn errors of metabolism

Journal of Genetics and Genomics, 2018
Inborn errors of metabolism (IEMs) are a large group of inherited disorders characterized by disruption of metabolic pathways due to deficient enzymes, cofactors, or transporters. The rapid advances in the understanding of the molecular pathophysiology of many IEMs, have led to significant progress in the development of many new treatments.
Michael J, Gambello, Hong, Li
openaire   +2 more sources

A proposed method for the determination of current-transformer errors

Electrical Engineering, 1940
CURRENT TRANSFORMERS for relay service must be able to function with reasonable accuracy under very high overload conditions, and it is therefore necessary that their accuracy for such high currents be verified. However, in performing the usual accuracy test at very high currents, certain difficulties are encountered — the principal ones being:
G. Camilli, R. L. Ten Broeck
openaire   +1 more source