快好知 kuaihz


permanent magnet造句
(61) Emphatically reviewed four systems of permanent magnet material:Al-Ni-Co magnet, ferrite magnet, rare-earth magnet and glue magnet. (62) A new high power-density brushless permanent magnet traction motor with water-cooling stator frame as well as design guideline is presented. (63) The success of such a unilateral permanent magnet builds a strong basis for some scientific research such as the construction of a unilateral MRI system with homogeneous magnetic field. (64) Compared with other motors, Permanent Magnet Synchronous Motor (PMSM) has the advantages of low inertia, high torque-current ratio, low noise, no excitation loss. (65) This paper has presented a module-cascaded system for multi-coil direct-drive permanent magnet wind generator system with high voltage output, eliminating the grid-side step-up transformer. (66) The rare earth permanent magnet brushless DC square wave motor is a new type of motor. (67) Ferrovanadium can be used as additive in smelting high-intensity-low-alloy steel, high speed steel, tool steel, stainless steel and permanent magnet. (68) Compared with electromagnetic starting motor, permanent magnet starting has the characteristics of small volume, low weight, high efficiency and big ratio efficiency to weight. (69) Based on instantaneous power analysis, an instantaneous power control method of permanent magnet synchronous machine(PMSM) is proposed in this paper. (70) A calculation method based on the concept of "senary" is presented, to start up a contra-rotative rare earth permanent magnet brushless direct current motor (CR REPM BLDCM). (71) The theory and characters of testing technology for permanent magnet material NdFeB have been introduced in detail. (72) A novel mathematical model for a dual three - phase permanent magnet synchronous machine ( PMSM ) was proposed. (73) Utilizing rare-earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. (74) Emphatically reviewed four systems of permanent magnet material : Al - Ni - Co magnet, ferrite magnet, rare - magnet and glue magnet. (75) Utilization of the Nd-Fe-B permanent magnet in DC servomotor has resulted in improved efficiency and increased power-weight ratio, reduced time constant. (76) Firstly, using finite element analysis to describe that cogging force was the main cause of force ripple in tubular permanent magnet linear motors. (77) Because the dynamic character of PMA is affected by permanent magnet and exciting current, in this paper, new mathematic model and equation are established and the calculation result is analyzed. (78) The construction and the operating principle of the axial split phase hybrid type permanent magnet stepper motor are analyzed. (79) Doubly salient permanent magnet motor is a novel electromechanical controllable AC variable speed systems. (80) Characterization of temperature stability of permanent magnet with magnetic temperature compensation alloy was discussed. (81) Permanent magnet vehiele separators according to its clamping. there of the different structure, can be divided into the downstream type, counter-current type and half counter-current type 3 kinds. (82) Line - start permanent magnet synchronous machine has high efficiency and power factor. (83) The structure and working principle of the permanent magnet mechanism are proposed. (84) Magnetic Field Intensity, Magnetic Flux Density, Coercive Force, Vertical Axis Wind Turbine, NdFeB Rare-Earth Permanent Magnet. (85) Initial design includes the design about contact system structural, electromagnetic system structural. Regarding permanent magnetism relay, the permanent magnet structural design must be considered. (86) The operating conditions in a permanent magnet were analyzed to quantity the magnetic induction changes on the surface with an alternating magnetic field. (87) The main factor is thrust ripple of permanent magnet liner synchronous motor. (88) In this paper the relationship of current with loss of surface permanent magnet synchronous motor (SPMSM) is achieved by considering the copper loss and iron loss. (89) This paper introduced the process technology of resinoid diamond grinding wheel for grinding rare earth permanent magnet materials. (90) To solve this problem, a new method (EMDES), i. e. the fuzzy case design method, is proposed in this paper and applied to permanent magnet direct current motor design expert system (PMDCMDES).