Full Material(s)-Please Click here
... wiper that slides against a fixed resistive element. To measure displacement, a potentiometer is typically wired in a voltage divider configuration. ...
... wiper that slides against a fixed resistive element. To measure displacement, a potentiometer is typically wired in a voltage divider configuration. ...
High Efficiency Motor Protection Industry White Paper
... The asymmetrical offset is dependent mainly upon at which point on the voltage wave the circuit is energized. If the circuit is energized at a voltage maximum, there is no asymmetrical offset and the inrush current is essentially the LRC for that current phase. However, if the circuit is energized w ...
... The asymmetrical offset is dependent mainly upon at which point on the voltage wave the circuit is energized. If the circuit is energized at a voltage maximum, there is no asymmetrical offset and the inrush current is essentially the LRC for that current phase. However, if the circuit is energized w ...
Magnetic properties
... (hence the remanent field Br) – To get to zero B field an H field of some magnitude –Hc must be applied in a direction opposite to the initial field Hc is called the coercivity ...
... (hence the remanent field Br) – To get to zero B field an H field of some magnitude –Hc must be applied in a direction opposite to the initial field Hc is called the coercivity ...
High voltage capacitor banks
... Nokian Capacitors Technical Services and Nokian Capacitors field representatives to find the optimum compensation system for any reactive power problem. Nokian Capacitors can offer a cost-benefit analysis of the various alternatives available and then draw up an individual plan detailing the most ec ...
... Nokian Capacitors Technical Services and Nokian Capacitors field representatives to find the optimum compensation system for any reactive power problem. Nokian Capacitors can offer a cost-benefit analysis of the various alternatives available and then draw up an individual plan detailing the most ec ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... field that energetically looks for suspicious materials or objects [5]. A magnetometer, a passive device, was much greater in use 20 years ago in the detection of weapons. The magnetometer to rely on the Earth's magnetic field-it looks for a distortion caused by the attendance of ferromagnetic (attr ...
... field that energetically looks for suspicious materials or objects [5]. A magnetometer, a passive device, was much greater in use 20 years ago in the detection of weapons. The magnetometer to rely on the Earth's magnetic field-it looks for a distortion caused by the attendance of ferromagnetic (attr ...
Stepper Motor
... type of driver circuit, which reverses the current flow through the entire coil by alternating the polarity of the terminals, giving us the name ‘bipolar’. A bipolar motor is capable of higher torque since the entire coil is energized, not just half. Let’s look at the mechanism for reversing the vo ...
... type of driver circuit, which reverses the current flow through the entire coil by alternating the polarity of the terminals, giving us the name ‘bipolar’. A bipolar motor is capable of higher torque since the entire coil is energized, not just half. Let’s look at the mechanism for reversing the vo ...
University of Pennsylvania ESE 112: Introduction to Electrical
... 3. Directly proportional to the permittivity (of dielectric), which is the ability of a material to transmit (or "permit") an electric field. Application of a capacitor: Capacitors are used in applications where a large amount of energy is required in a short amount of time. For example, the flash ...
... 3. Directly proportional to the permittivity (of dielectric), which is the ability of a material to transmit (or "permit") an electric field. Application of a capacitor: Capacitors are used in applications where a large amount of energy is required in a short amount of time. For example, the flash ...
Current Transformers
... is of such magnitude that the meter or instrument current coil cannot conveniently be made' of sufficient carrying capacity. They are also used wherever high-voltage current has to be metered, because of the difficulty of providing adequate insulation in the meter- itself. In this connection-supply ...
... is of such magnitude that the meter or instrument current coil cannot conveniently be made' of sufficient carrying capacity. They are also used wherever high-voltage current has to be metered, because of the difficulty of providing adequate insulation in the meter- itself. In this connection-supply ...
Aalborg Universitet Beczkowski, Szymon; Munk-Nielsen, Stig
... lifetime of a LED based luminaire is dependent mostly on the light source [1] but very often lifetime of the whole luminaire is limited by the power electronic components. The most problematic components in the power converters are the electrolytic capacitors, which are present in the converter to s ...
... lifetime of a LED based luminaire is dependent mostly on the light source [1] but very often lifetime of the whole luminaire is limited by the power electronic components. The most problematic components in the power converters are the electrolytic capacitors, which are present in the converter to s ...
Tutorial overview of inductively coupled RFID Systems
... which one is said to be in the near field and outside of which one is said to be in the far field. The concept of the radian sphere, which has a value for its radius of λ/2π, aids in the visualisation of whether the tag coupling is in the near or far field. If the tag is inside this sphere, the reac ...
... which one is said to be in the near field and outside of which one is said to be in the far field. The concept of the radian sphere, which has a value for its radius of λ/2π, aids in the visualisation of whether the tag coupling is in the near or far field. If the tag is inside this sphere, the reac ...
DC Machines - Electrical and Computer Engineering
... Compared with other types of single-phase ac motors, the universal motor has several advantages: 1- For a given weight, universal motors produce more power than other types. This is a large advantage for hand-held tools and small appliances, such as drills, saws,mixers, and blenders. 2- The universa ...
... Compared with other types of single-phase ac motors, the universal motor has several advantages: 1- For a given weight, universal motors produce more power than other types. This is a large advantage for hand-held tools and small appliances, such as drills, saws,mixers, and blenders. 2- The universa ...
Analyzing Magnetic Fields with Solenoids - PhysicsEd
... my students to note the number of loops they wrap the wire around the straw in order to discuss the influence of the number of loops on the magnetic field. Other extensions to this activity include ways for students to explore different designs for their solenoids and the effects these designs creat ...
... my students to note the number of loops they wrap the wire around the straw in order to discuss the influence of the number of loops on the magnetic field. Other extensions to this activity include ways for students to explore different designs for their solenoids and the effects these designs creat ...
Chapter 24: Capacitance
... Molecular model of induced charge - II • Figure 24.20 below shows polarization of the dielectric and how the induced charges reduce the magnitude of the resultant electric field. ...
... Molecular model of induced charge - II • Figure 24.20 below shows polarization of the dielectric and how the induced charges reduce the magnitude of the resultant electric field. ...
capacitor
... Molecular model of induced charge - II • Figure 24.20 below shows polarization of the dielectric and how the induced charges reduce the magnitude of the resultant electric field. ...
... Molecular model of induced charge - II • Figure 24.20 below shows polarization of the dielectric and how the induced charges reduce the magnitude of the resultant electric field. ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.