In this paper,many technical experiments be done with various source parameters of pulse vacuum electric arc ion source,such as direct loop voltage,pulse frequency,and with various plating height and magnetic intensity of magnetic field,various samples be plated. Meantime,a film thick measuring instrument be selected to measure the distributing of film thick,and then,the relation curve of various technical parameters with emission characteristics be accomplished.

The diamond like carbon (DLC) film deposited by pulsed vacuum arc ion source, and the influences of various factors including substrate temperature, main loop voltage, clearing time, film thickness and pulsed frequency on DLC film hardness have been researched. Finally, the optimum deposition parameter has been found out.

Finally,an algorithm for generating node equations and mesh equations using computer-aided analysis is represented. The proposed algorithm can provide the rule for bestowing values on node admittance matrix,node-current source matrix,and mesh impedance matrix and loop-voltage source matrix.

Based on the charge conservation law, electrostatic field loop theorem and mathematic inductive methods, a set of zero-charged equations and a set of loop-voltage equations have been obtained and the independence between the two sets of equations has been verified, and thus the calculation problem of equivalent capacitance of the arbitrary passive two-end capacitance network has been solved.

Utilizing Kirchhoff's current law(KCL),Kirchhoff's voltage law(KVL) and mathematical tools, a set of node current equations and a set of loop-voltage equations have been obtained and the independence between the two sets of equations has been verified, thus the calculation problem of equivalent self-inductance coefficient of non-mutual-inductance-coupling two-end self-inductance network has been solved.

This paper studied the nonlinear relationship between the DC arc duration, arc energy and contact breakaway velocity, circuit current, circuit voltage. By using FPC network model and fuzzy C mean method, the method of modeling for the nonlinear relationship was presented.

For normal operation of three-phase bridge rectifier, phase sequence and phase of synchronous voltage and main circuit voltage must match, current method is exchanging phase sequence and measuring voltage wave.

The analytical expression for dI/dt capability of reversely switched dynistor(RSD) was found and the main discharge circuit model for RSD was analyzed by using plasma bipolar drift model. The factors influencing the dI/dt characteristics of RSD were discussed. It is found that the dI/dt increases as the total triggering electric amount increases and the electron diffusion time and lifetime in p-base decrease and it grows as the main circuit voltage increases and the inductance decreases.

Starting with the relation between the input and output voltage (dc link voltage) of twolevel converter fed from 25 kV/50 Hz supply,the paper discusses the calculation methods for input voltage in conjunction with parameters of some AC drive locomotives in foreign countries,so as to obtain reasonable voltage value.

This paper states the measures that using anti-electric-larceny monitoring equipment to measure loop pressure and electric current in electric load management system to improve anti-electric-larceny speed.

Introduced are the topology structure of TCN control system along with the functions and hardware configuration of LCUfor DF8CJ AC-drive diesel locomotive. Some issures are probed deeply, like the locomotive characteristics control, DC link voltage control,auxiliary AC drive system control, and diagnosis, record & protection of locomotive system failure in the software design of locomotivecontrol unit.

On the basis of modeling and analysis of the voltage and current signal in resistance welding transformer circuit,a current zero-crossing derivative ratio method was proposed to calculate the dynamic power factor online.

The system structure and software design is introduced in this paper. By s oftware design,system can monitor several circuits simultaneously and possesses such functions as carrying out the statistics of eligible rate,maximum and mi nimum value of voltage,querying the monitored voltage data according to specifi ed time ,inspecting the daily voltage curve of each monitored point,printing m onthly and daily reports and so on.

The energy confinement time τE is calculated from the equation τ E=W/[UPIP-d/dt(LIP2/2)-dW/dt] where UP is the plasma loop voltage (V), IP is the plasma current (A), and L is the total internal inductance (H).

The resistive contribution to the loop voltage is of the order of 1 V.

Interpretation of toroidal current and loop voltage temporal evolution during RF-current drive experiment on the T-7 tokamak

A simple analytical model is developed and solved to describe time evolution of the loop voltage and toroidal current when RF and inductive current drive take place simultaneously.

These modes are found to result in the positive jump in the loop voltage which was also observed in the experiments.

It was found that oxygen at the fabrication steps affects in different manners the formation of open-circuit voltage and the performance of the device.

The open-circuit voltage is 55 mV, for the bacteria cell, the mediator, and glucose concentrations of 3 mg/ml (raw weight), 34 mM, and 10 mM, respectively.

The optimal generator open-circuit voltage was found for which the electron-beam current amplitude produced in a gas diode was maximal behind a foil.

The relaxations of the short-circuit current and the open-circuit voltage are investigated at different intensities of light with wavelengths in the range 300-1200 nm.

It is found that the open-circuit voltage returns to its original value after the cessation of light exposure and a short-term holding of structures in the short-circuited state.

In this paper, the authors gire a brief description of the cause of circulating current and divide the rectifier circuits for reversing drives into two categories.According to the characteristics of the circulating loop .voltage for various numbers of phases and for different kinds of loads, a generalized formula for calculating the average value of circulating current is derived. Computing coefficients for the frequently used rectifier circuits are given.

Using the Multi-Loop Method, the authors of this paper have analysed the stator and rotor currents of the squirrel-cage induction motors with rotor-bar and end-ring faults, and also analysed their steady-state operation. In this paper, the rotor circuits are treated individually. And after the voltage and flux-linkage equations of all the stator and rotor circuits, together with their parameters, are derived, a mathematical model of induction motors analysed with the Multi-Loop Method is established. The supposed...

Using the Multi-Loop Method, the authors of this paper have analysed the stator and rotor currents of the squirrel-cage induction motors with rotor-bar and end-ring faults, and also analysed their steady-state operation. In this paper, the rotor circuits are treated individually. And after the voltage and flux-linkage equations of all the stator and rotor circuits, together with their parameters, are derived, a mathematical model of induction motors analysed with the Multi-Loop Method is established. The supposed steady-state expressions of the circuit currents being substituted for the corresponding currents in the voltage equations, linear algebra equations are obtained by setting coefficients of the sine or cosine functions of the same frequency equal. After solving these equations, we obtain the circuit currents and furthermore, the operating characteristics of the motors.

Force motor and torque motor are analysed in the light of a comprehenisve view and methodology by introducing such concepts as equivalent resistance, equivalent inductance and counter EMF coefficients, and by generalizing into a generalized voltage equation the loop voltage equations for converter with different number of turns in the coil and in different connections. Further on, a generalized one-to-one correspondence between the force motor and the torque motor is established so as to analyze their static...

Force motor and torque motor are analysed in the light of a comprehenisve view and methodology by introducing such concepts as equivalent resistance, equivalent inductance and counter EMF coefficients, and by generalizing into a generalized voltage equation the loop voltage equations for converter with different number of turns in the coil and in different connections. Further on, a generalized one-to-one correspondence between the force motor and the torque motor is established so as to analyze their static and dynamic characteristics, their special features and their scope of applications.