magnetic toroidal cores exposed to a strong stationary magnetic field
... magnetic field intensity from ferrite magnets does not exceed the value of 300 kA/m, which is recognized as the limit of harmful influence of the magnets [4]. Also, the ferrite magnets are not capable of changing the technical characteristics of electrotechnical equipment, as neodymium (N dF eB) mag ...
... magnetic field intensity from ferrite magnets does not exceed the value of 300 kA/m, which is recognized as the limit of harmful influence of the magnets [4]. Also, the ferrite magnets are not capable of changing the technical characteristics of electrotechnical equipment, as neodymium (N dF eB) mag ...
power_point1..metal_detector..final1_
... the time it takes for a target signal to decay can vary because of the size, shape, and chemical makeup of the object ,two ways forDiscrimination Many PI's rely on the ability of an adjustable delay whereby the operator can simply adjust the delay longer to see if an object is a piece of gold or n ...
... the time it takes for a target signal to decay can vary because of the size, shape, and chemical makeup of the object ,two ways forDiscrimination Many PI's rely on the ability of an adjustable delay whereby the operator can simply adjust the delay longer to see if an object is a piece of gold or n ...
Step-up Transformers - Pacific Crest Transformers
... The role of step-up transformers in the industrial market is extremely important since their performance can directly impact the entire electrical supply of the operation. To guard against the possibility of an extended disruption in power supply for critical operations, the use of a back-up power s ...
... The role of step-up transformers in the industrial market is extremely important since their performance can directly impact the entire electrical supply of the operation. To guard against the possibility of an extended disruption in power supply for critical operations, the use of a back-up power s ...
LM2575 数据资料 dataSheet 下载
... to zero) or in discontinuous mode (inductor current goes to zero during the normal switching cycle). Each mode has distinctively different operating characteristics and, therefore, can affect the regulator performance and requirements. In many applications, the continuous mode is the preferred mode ...
... to zero) or in discontinuous mode (inductor current goes to zero during the normal switching cycle). Each mode has distinctively different operating characteristics and, therefore, can affect the regulator performance and requirements. In many applications, the continuous mode is the preferred mode ...
inductance of coaxial cable
... insulation between the conductors. For example, if for f = 50 Hz, ro1 = 10 mm we choose ri2 = 1 mm, then LH = 5.115 × 10−7 H/m, L = 5.108 × 10−7 H/m and for ri2 = 0.3 mm we have LH identical to L in the first four valid figures. A comparison of the inductance values in the Table reveals that the for ...
... insulation between the conductors. For example, if for f = 50 Hz, ro1 = 10 mm we choose ri2 = 1 mm, then LH = 5.115 × 10−7 H/m, L = 5.108 × 10−7 H/m and for ri2 = 0.3 mm we have LH identical to L in the first four valid figures. A comparison of the inductance values in the Table reveals that the for ...
Acta Innovations • ISSN 2300-5599 • 2015 • no. 17: 22
... What is more, Buck-Converter is a part of buck family. In this group one can find: buck, buck-boost and buckboost-buck Converters [1]. Buck-Converters work in continuous and discontinuous mode. Generally BuckConverter is used to reduce the input voltage. However this converter ...
... What is more, Buck-Converter is a part of buck family. In this group one can find: buck, buck-boost and buckboost-buck Converters [1]. Buck-Converters work in continuous and discontinuous mode. Generally BuckConverter is used to reduce the input voltage. However this converter ...
Practical Method to Determine Additional Load Losses due to
... The driving source for these tests is a rotating generator suited for higher speeds/frequencies or a set of power amplifier(s)/converters in combination with accurate signal generators both with a very low harmonic content. The sources do not have to be of the same power rating and voltage levels as ...
... The driving source for these tests is a rotating generator suited for higher speeds/frequencies or a set of power amplifier(s)/converters in combination with accurate signal generators both with a very low harmonic content. The sources do not have to be of the same power rating and voltage levels as ...
![Pre lab and Lab 4 for elec 3105 Transformer [no Amplifiers]](http://s1.studyres.com/store/data/000482276_1-7fa36a32045688c795c994074daff95d-300x300.png)
numerical simulations of electromagnet exposed to vibration
... is analyzed from mechatronic viewpoint, i.e. not only electrical behaviour is of interest, but also the mechanical response. A so-called pot-type electromagnet, used in the analysis (Fig. 1), consists of a vibrating yoke, an iron core and a coil wound around the core, which is connected to the elect ...
... is analyzed from mechatronic viewpoint, i.e. not only electrical behaviour is of interest, but also the mechanical response. A so-called pot-type electromagnet, used in the analysis (Fig. 1), consists of a vibrating yoke, an iron core and a coil wound around the core, which is connected to the elect ...
Scalar Potential and Conservative Electric Field Within a Loaded
... development and application of MRI, more attention has been devoted to the estimation of electric (E-) fields induced by time-varying magnetic fields generated by gradient coils. It is clear that charge distribution and scalar potential in the sample have strong effects on the final electrical field ...
... development and application of MRI, more attention has been devoted to the estimation of electric (E-) fields induced by time-varying magnetic fields generated by gradient coils. It is clear that charge distribution and scalar potential in the sample have strong effects on the final electrical field ...
SQUID - Superconducting Quantum Interference Devices
... superconductor state: Their resistance jumps zero. Their magnetic behavior changes. ...
... superconductor state: Their resistance jumps zero. Their magnetic behavior changes. ...
Manual
... This apparatus allows students to easily create an electrical DC current by turning a hand crank. The two leads on the back of the apparatus allows for devices such as lamps or small motors to be attached to the apparatus. The back of the apparatus has brushes designed to collect direct current (DC) ...
... This apparatus allows students to easily create an electrical DC current by turning a hand crank. The two leads on the back of the apparatus allows for devices such as lamps or small motors to be attached to the apparatus. The back of the apparatus has brushes designed to collect direct current (DC) ...
EM-I QB - K.Sivakumar
... 6. Define reluctance and permeance. 7. What is leakage flux and fringing? 8. Define inductance. 9. What is leakage flux and mutual flux? 10. Define magnetic reluctance. 11. What are quasi static fields? 12. How will you minimize hysteresis and eddy current losses? 13. What are the core losses and ho ...
... 6. Define reluctance and permeance. 7. What is leakage flux and fringing? 8. Define inductance. 9. What is leakage flux and mutual flux? 10. Define magnetic reluctance. 11. What are quasi static fields? 12. How will you minimize hysteresis and eddy current losses? 13. What are the core losses and ho ...
Inductor
An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. When a current flows through it, energy is stored temporarily in a magnetic field in the coil. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction, According to Lenz's law the direction of induced e.m.f is always such that it opposes the change in current that created it. As a result, inductors always oppose a change in current, in the same way that a flywheel oppose a change in rotational velocity. Care should be taken not to confuse this with the resistance provided by a resistor.An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10−6H) to 1 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current (AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.