Analyzing Simple Electric Motors in the Classroom
... practice and repetition to be able to create very reliable armatures. However, if students have sufficient time and guidance for building their own armatures, they are able to observe the construction process from start to finish, and may find complete construction more educational. Another solution ...
... practice and repetition to be able to create very reliable armatures. However, if students have sufficient time and guidance for building their own armatures, they are able to observe the construction process from start to finish, and may find complete construction more educational. Another solution ...
e/m Experiment - sestechno.com
... Our arrangement for measuring e/m, the charge to mass ratio of the electron is a very simple set-up. It is based on Thomson’s method. The e/m-tube is bulb-like and contains a filament, a cathode, a grid, a pair of deflection plates and an anode. The tube is filled with helium at a very low pressure. ...
... Our arrangement for measuring e/m, the charge to mass ratio of the electron is a very simple set-up. It is based on Thomson’s method. The e/m-tube is bulb-like and contains a filament, a cathode, a grid, a pair of deflection plates and an anode. The tube is filled with helium at a very low pressure. ...
PC250 Test Board for the A250
... AC coupling is often a more convient and safer method to connect the detector when the lowest noise performance is not required. In this configuration the HV bias is applied through the PC250 test board. In order to configure the board for AC coupling the user must do the following: ...
... AC coupling is often a more convient and safer method to connect the detector when the lowest noise performance is not required. In this configuration the HV bias is applied through the PC250 test board. In order to configure the board for AC coupling the user must do the following: ...
Introduction to MOS Transistor
... Goal: to cancel the imaginary admittance with an inductor! An effective output capacitance of 135 fF An effective output resistance of 1/1.107mS=900 Ohms Since we know fo, and Ceff, we can calculate Leff: 15.3 nH ...
... Goal: to cancel the imaginary admittance with an inductor! An effective output capacitance of 135 fF An effective output resistance of 1/1.107mS=900 Ohms Since we know fo, and Ceff, we can calculate Leff: 15.3 nH ...
Instructions for use and maintenance
... This is a safety class I device, which may be supplied with power only from the power outlet with a protective conductor, which must be connected to the device as first and in any case must not be interrupted (e.g. by an extension cord). Any interruption of the protective earth conductor, or its dis ...
... This is a safety class I device, which may be supplied with power only from the power outlet with a protective conductor, which must be connected to the device as first and in any case must not be interrupted (e.g. by an extension cord). Any interruption of the protective earth conductor, or its dis ...
Superconducting RF Cavities for Particle
... • Superconducting RF (SRF) provides efficient, high-gradient accelerators at high duty-factor. • SRF accelerator cavities are a success story. • Large variety of SRF cavities, depending on: – Type of accelerator – Particle velocity – Current and Duty factor – Gradient – Acceleration or deflecting mo ...
... • Superconducting RF (SRF) provides efficient, high-gradient accelerators at high duty-factor. • SRF accelerator cavities are a success story. • Large variety of SRF cavities, depending on: – Type of accelerator – Particle velocity – Current and Duty factor – Gradient – Acceleration or deflecting mo ...
Lab 1 - UniMAP Portal
... A transformer is a static machine having two or more windings coupled by a mutual magnetic field. Ferromagnetic cores are commonly used to provide tight magnetic coupling and high flux densities. Single-phase transformers are widely used in low power electronic or control circuits to isolate one cir ...
... A transformer is a static machine having two or more windings coupled by a mutual magnetic field. Ferromagnetic cores are commonly used to provide tight magnetic coupling and high flux densities. Single-phase transformers are widely used in low power electronic or control circuits to isolate one cir ...
Multistage Transistor Amplifiers
... amplifier is coupled in some way to the input of the next stage. The resulting system is referred to as the multistage amplifier. In fact, a multistage amplifier consists of single amplifiers in which output of first stage is connected to the input of the second stage through a suitable coupling dev ...
... amplifier is coupled in some way to the input of the next stage. The resulting system is referred to as the multistage amplifier. In fact, a multistage amplifier consists of single amplifiers in which output of first stage is connected to the input of the second stage through a suitable coupling dev ...
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.