Results 211 to 220 of about 82,823 (258)
Some of the next articles are maybe not open access.
Induction Motor Operation With Non-Sinusoidal Impressed Voltages
Transactions of the American Institute of Electrical Engineers, 1929The usual procedure in considering the operation of induction motors has been to neglect the effect of harmonics. Although in most instances this gives results which are sufficiently accurate, the question of how much these effects are or how much is being neglected has yet to be answered in electrical engineering literature.
L. A. Doggett, E. R. Queer
openaire +1 more source
Factors Affecting Losses in Induction Motors with Non-Sinusoidal Supply
2007 IEEE Industry Applications Annual Meeting, 2007This paper presents the results of an investigation into the factors affecting losses in induction motors operating with non-sinusoidal supply. It is well known that the losses in machines increase when a non-sinusoidal supply is used. However, the specific causes of the increase in loss and resultant techniques required to mitigate these losses are ...
BOGLIETTI, Aldo +3 more
openaire +2 more sources
Non-sinusoidal magnetisation and applications
2019The book chapter shows that it is rare for soft magnetic materials in a.c. applications to be subject to perfectly sinusoidal flux-density waveforms. The designers and users of electrical machines are placing increasing demands on the magnetic cores. Traditionally, the electrical steels used in these devices are characterised under standard conditions ...
openaire +1 more source
Non-sinusoidal Behavior of Electric Circuits
1998In the preceding chapters, sinusoidal currents and voltages have been considered almost exclusively to study the fundamental principles of a.c. circuits. Using a symbolic method (with complex numbers) of calculation, and phasor (or graphical) methods of sine wave representation, we were able to deduce these circuits in a simple manner, and various ...
openaire +1 more source
Hybrid Architecture for Sinusoidal and Non-sinusoidal Transforms
Circuits, Systems, and Signal Processing, 2022I. Mamatha +2 more
openaire +1 more source
An Optical Fibre Sensor for Non-sinusoidal Current
IETE Journal of Research, 1997Measurement of current and voltage in high voltage systems employing optical fibre sensors is becoming increasingly popular as the problem of insulation is practically eliminated. Vibrations, physical and acoustic, perturb the polarisation-preserving sensing fibre and cause added noise much in excess of the signal.
H O Modi, V Jagadeesh Kumar, P Sankaran
openaire +1 more source
A Set of Non-sinusoidal Terahertz Pulses
CLEO 2024An analytical expression for a set of few-cycle pulses is derived and compared to experimental measurements of sub-cycle terahertz pulses. A set of pulses with orthogonal spectra are derived for more general ultrabroadband pulses.
openaire +1 more source
Non-sinusoidal Orthogonal Functions in Systems and Control
2016This chapter discusses different types of non-sinusoidal orthogonal functions such as Haar functions, Walsh functions, block pulse functions, sample-and-hold functions, triangular functions, non-optimal block pulse functions and a few others. It also discusses briefly the application of Walsh, block pulse and triangular functions, three major members ...
Anish Deb +2 more
openaire +1 more source
Electrical prospecting with non-sinusoidal alternating currents
Geophysics, 1938Abstract A method of electrical prospecting using alternating current of rectangular or other non-sinusoidal waveform is described. The changes in waveform caused by anomalous subsurface structure are determined by a null method in which the detected electromotive force is balanced against an electromotive force produced by passing ...
openaire +1 more source
Perceptibility of Non-sinusoidal Bands
NIP & Digital Fabrication Conference, 2002Wencheng Wu +2 more
openaire +1 more source