Institutionen för systemteknik Department of Electrical Engineering Harvested Stray Electric Field Energy
... 0.9 Hz was about 1.3 mW. When placing a flexible, multilaminar polyvinylidenefluoride (PVDF) bimorph stave in the area between the middle of the foot and up till the front of the foot, and when placing a prestressed spring metal strips laminated with a semi-flexible form of piezoelectric lead zircon ...
... 0.9 Hz was about 1.3 mW. When placing a flexible, multilaminar polyvinylidenefluoride (PVDF) bimorph stave in the area between the middle of the foot and up till the front of the foot, and when placing a prestressed spring metal strips laminated with a semi-flexible form of piezoelectric lead zircon ...
MAX17062 TFT-LCD Step-Up DC-DC Converter General Description Features
... series resistance are factors to consider when selecting the inductor. These factors influence the converter’s efficiency, maximum output load capability, transientresponse time, and output-voltage ripple. Physical size and cost are also important factors to be considered. The maximum output current ...
... series resistance are factors to consider when selecting the inductor. These factors influence the converter’s efficiency, maximum output load capability, transientresponse time, and output-voltage ripple. Physical size and cost are also important factors to be considered. The maximum output current ...
pptx
... – Similar to the capacitor, but an inductor is used to store energy due to current flow. This in turn maintains a constant current or is used to limit the rate of change of current flow. – This will also determine the peak to peak current in the circuit which affects the transistor, diode and the “m ...
... – Similar to the capacitor, but an inductor is used to store energy due to current flow. This in turn maintains a constant current or is used to limit the rate of change of current flow. – This will also determine the peak to peak current in the circuit which affects the transistor, diode and the “m ...
electrical engineering technology emt 113/4
... • Has a higher starting torque than a shunt motor (whose flux is constant) but a lower starting torque than a series motor (whose entire flux is proportional to armature current). • It combines the best features of both the shunt and the series motors. Like a series motor, it has extra torque for st ...
... • Has a higher starting torque than a shunt motor (whose flux is constant) but a lower starting torque than a series motor (whose entire flux is proportional to armature current). • It combines the best features of both the shunt and the series motors. Like a series motor, it has extra torque for st ...
Microsoft Word - AnytimeCE.com
... 6. At the end of each section, you’ll enter the quiz which is the same as your printed test. Refer to your circled answers when actually answering the quiz on the web. 7. Upon passing, you will proceed to the next section. If failed to pass, you will be moved to the beginning of that section for mor ...
... 6. At the end of each section, you’ll enter the quiz which is the same as your printed test. Refer to your circled answers when actually answering the quiz on the web. 7. Upon passing, you will proceed to the next section. If failed to pass, you will be moved to the beginning of that section for mor ...
EMT 113 Chapter 2
... 2. The armature conductors are forces to carry current by connecting them to DC power source 3. The current direction in the conductors under each pole is kept the same by commutator 4. According to Lorentz force equation, a current carrying conductor when placed in a magnetic field experiences a fo ...
... 2. The armature conductors are forces to carry current by connecting them to DC power source 3. The current direction in the conductors under each pole is kept the same by commutator 4. According to Lorentz force equation, a current carrying conductor when placed in a magnetic field experiences a fo ...
Unit 2 - GVPCEW
... Advantages of Electrical transducers Mostly quantities to be measured are non-electrical such as temperature, pressure, displacement, humidity, fluid flow, speed etc., but these quantities cannot be measured directly. Hence such quantities are required to be sensed and changed into some other form f ...
... Advantages of Electrical transducers Mostly quantities to be measured are non-electrical such as temperature, pressure, displacement, humidity, fluid flow, speed etc., but these quantities cannot be measured directly. Hence such quantities are required to be sensed and changed into some other form f ...
article: linear induction motor
... In both induction and synchronous motors, the AC power supplied to the motor's statorcreates a magnetic field that rotates in time with the AC oscillations. Whereas a synchronous motor's rotor turns at the same rate as the stator field, an induction motor's rotor rotates at a slower speed than the s ...
... In both induction and synchronous motors, the AC power supplied to the motor's statorcreates a magnetic field that rotates in time with the AC oscillations. Whereas a synchronous motor's rotor turns at the same rate as the stator field, an induction motor's rotor rotates at a slower speed than the s ...
Introduction - Sree Narayana Gurukulam College of Engineering
... to pole arc or L=b= ψ τ . The value of ψ is usually between 0.64 to 0.72 ( the ratio L/ τ = 0.64 to 0.72 ). However in practice L is slightly greater than pole arc , b and L/ τ is usually between 0.7 to 0.9.For square pole criterion choose L/ τ as 0.7. ...
... to pole arc or L=b= ψ τ . The value of ψ is usually between 0.64 to 0.72 ( the ratio L/ τ = 0.64 to 0.72 ). However in practice L is slightly greater than pole arc , b and L/ τ is usually between 0.7 to 0.9.For square pole criterion choose L/ τ as 0.7. ...
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.