![Highly sensitive and easy-to-use SQUID sensors](http://s1.studyres.com/store/data/022626720_1-b1a8bf776fb524c576c3afb619c90bb4-300x300.png)
Highly sensitive and easy-to-use SQUID sensors
... Commonly, a spiral input coil with up to about 100 turns is wound on the SQUID “washer” in order to obtain the desired input inductance (typically 1 µH for wire-wound pickup coils) [2]. This planar coupling scheme allows a very efficient coupling with k close to unity, but leads to parasitic microwa ...
... Commonly, a spiral input coil with up to about 100 turns is wound on the SQUID “washer” in order to obtain the desired input inductance (typically 1 µH for wire-wound pickup coils) [2]. This planar coupling scheme allows a very efficient coupling with k close to unity, but leads to parasitic microwa ...
Work Coil Design used in Induction Hardening Machine
... the height does not exceed the diameter. Multi-turn coils are to be preferred for heating long areas. When the length of a coil exceeds eight times its diameter, uniform heating may be difficult. Long area should be heated by progressive feed through short coils. ...
... the height does not exceed the diameter. Multi-turn coils are to be preferred for heating long areas. When the length of a coil exceeds eight times its diameter, uniform heating may be difficult. Long area should be heated by progressive feed through short coils. ...
ECE320 Chapter 6
... voltage, isr1, and one 90º behind it, ism1. The first reflects the rotor current, while the second depends on the voltage and frequency. In an equivalent circuit, this means that isr1 will flow through a resistor, and ism1 will flow through an inductor. • Since isr1 is equal to the rotor current (th ...
... voltage, isr1, and one 90º behind it, ism1. The first reflects the rotor current, while the second depends on the voltage and frequency. In an equivalent circuit, this means that isr1 will flow through a resistor, and ism1 will flow through an inductor. • Since isr1 is equal to the rotor current (th ...
MAX8716/MAX8717/MAX8756/MAX8757 Interleaved High-Efficiency, Dual Power-Supply Controllers for Notebook Computers General Description
... step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems. Fixed-frequency ope ...
... step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems. Fixed-frequency ope ...
Lecture 4: RLC series circuit: V
... Ideally, the frequency response is flat over 20-20,000 Hz, and rolls off sharply at frequencies below 20 Hz and above 20,000 Hz. ...
... Ideally, the frequency response is flat over 20-20,000 Hz, and rolls off sharply at frequencies below 20 Hz and above 20,000 Hz. ...
improved short coil correction factor for induction heating of billets
... empirical frequency corrected ‘short coil’ equation. Measurements of electrical conductivity (<± 0.5%), current (± 1%), heat (± 1-3%), and magnetic flux density (± 1-2%) have been performed. The results are compared with 1D analytical calculations, and 2D axial symmetric FEM modeling using COMSOL 4. ...
... empirical frequency corrected ‘short coil’ equation. Measurements of electrical conductivity (<± 0.5%), current (± 1%), heat (± 1-3%), and magnetic flux density (± 1-2%) have been performed. The results are compared with 1D analytical calculations, and 2D axial symmetric FEM modeling using COMSOL 4. ...
MAX17582 Dual-Phase, Quick-PWM Controller for IMVP-6.5 CPU Core Power Supplies General Description
... VCC, VDD, V3P3 to GND ...........................................-0.3V to +6V D0–D6 to GND..........................................................-0.3V to +6V PGDIN, DPRSLPVR, PSI to GND..............................-0.3V to +6V SLOW to GND ......................................................... ...
... VCC, VDD, V3P3 to GND ...........................................-0.3V to +6V D0–D6 to GND..........................................................-0.3V to +6V PGDIN, DPRSLPVR, PSI to GND..............................-0.3V to +6V SLOW to GND ......................................................... ...
Characteristics of Interleaved PFC Stages
... An inductor imbalance that in current mode, may lead to a loss of the CrM operation within the slave stage (see Figure 2a). ♦ A slight difference in the on-time of the two branches that may engender a similar issue in a voltage mode control (refer to Figure 2b). The interactive phases option where t ...
... An inductor imbalance that in current mode, may lead to a loss of the CrM operation within the slave stage (see Figure 2a). ♦ A slight difference in the on-time of the two branches that may engender a similar issue in a voltage mode control (refer to Figure 2b). The interactive phases option where t ...
focusing solenoid for the front end of a linear rf accelerator
... algorithm described in [3]. To check different aspects of the chosen design approach, several prototype solenoids were built and tested. It was necessary to use high quality NbTi strand and achieve high winding density to meet the requirements for the solenoid strength and length. Some additional co ...
... algorithm described in [3]. To check different aspects of the chosen design approach, several prototype solenoids were built and tested. It was necessary to use high quality NbTi strand and achieve high winding density to meet the requirements for the solenoid strength and length. Some additional co ...
Summary
... used. The capacitor mounting (lands, traces and vias) typically contributes about the same amount or more inductance than the capacitor’s own parasitic inductance. If a second capacitor is connected into the vias of an existing capacitor, it only improves the PDS by a very small amount. It would be ...
... used. The capacitor mounting (lands, traces and vias) typically contributes about the same amount or more inductance than the capacitor’s own parasitic inductance. If a second capacitor is connected into the vias of an existing capacitor, it only improves the PDS by a very small amount. It would be ...
Inductor
![](https://commons.wikimedia.org/wiki/Special:FilePath/Electronic_component_inductors.jpg?width=300)
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.