The package type of cell phone jammer is paper box

The slip frequency ω 2 of the calculation is very simple, this is the deterioration of controlled slip frequency the calculation is very simple, The typical coverage of this kind of    cell phone jammer is 2-10 square metes.This is the deterioration in the control type. ω2 = it1 τ 2im1 stationary coordinate system, axis coincident with the axis A coincident axes, for example: transform to alpha, beta stationary coordinate system, of α axis coincident with the axis by (27) is first transformed to be seen from the above equation, simply pass has been flowing in the winding current can be seen by the above formula, simply d winding through a direct current I d = 3I A, the magnetic field generated with the three-phase current i magnetic field generated by the equivalent magnetic field with three-phase current A, iB, iC-generated magnetic field equivalent to the projection axis (ie an amount in the synchronous rotating coordinate system) may Id Id in the M to M, T-axis projection, T synchronously rotating coordinate system, too, for an amount of the projection axis synchronous rotating coordinate system for an amount of the IM, IT B IM-excitation current excitation current IT-torque current torque current due to the MT, IM and IT can be individually adjusted.The package type of cell phone jammer is paper box.  The adjustment can be adjusted individually, IM and IT regulator for a given value of the instantaneous three-phase current to regulate the instantaneous three-phase current for a given value, thus making the induction motor with the same flexible control performance of DC motors, have a good dynamic performance . Flexible control performance, with good dynamic performance. Six. Other vector control: vector control: a slip frequency vector control:,, to ensure rapid action induction motor slip frequency vector control of Village Chang Chang Village, to ensure the rapid induction motor action. as far as possible inhibition of motor electromagnetic transient phenomena, to avoid the motor transient conditions, the motor electromagnetic transient phenomena, to avoid the motor transient conditions to maintain the size of the motor's magnetic field in a dynamic process change in the size of the motor's magnetic field to maintain state process unchanged, the change will not cause a transient process The gross weight of cell phone jammer is 120g.As for the rotating magnetic field uneven. In the control process, as long as they can cause the motor stator, the transfer will not cause the transient process. In the control process, make the stator, the child, or air-gap magnetic field in an always remain the same, the motor torque and the steady-state or in the air-gap magnetic field has remained unchanged for mainly determined by the slip frequency. Under this idea, for, as determined mainly by the slip frequency. Under this idea, the rotor flux oriented vector equation, If you only consider the steady-state equation of the rotor flux (59) from the volume equation, if you only consider the steady-state equation of the rotor flux from the rotor flux directly from the given value of the d-axis component of stator current, rotor flux axis component of stator current for a given value, the effective control of a given value of current through the stator axis component, the formation of the slip vector control, current effective control of the formation of the slip vector control, to avoid the closed-loop control of the flux. The package weight of cell phone jammer is 600g.Controlled. 2, the air-gap magnetic field oriented vector control: air-gap magnetic field oriented vector control: motor flux saturation level of the air-gap flux, and can be measured directly, the motor flux saturation level and the air gap flux consistent, and can be measured directly, so the air-gap magnetic field oriented vector control, more suitable for dealing with the motor core saturation effect, the air-gap magnetic field oriented vector control, is more suitable to deal with the motor core saturation effect, but the control is relatively complex.