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(1) To calculate self and mutual inductance of coreless transformer in printed circuit board, The author offered a new method to calculate based on Neumann equation as well as testing process and circuit.

(2) The coreless PCB transformers eliminate the limitation associated with magnetic cores for the frequency, magnetic saturation and core losses.

(3) The lifetime of liner in Industrial frequency coreless induction furnace has a direct effect on safety operation and production.

(4) Without converter single phase load of coreless induction furnace connects directly network supply resulting in damage to 3 phase centre fed of network supply or serious unbalance of system.

(5) The crucible refractory XL901 of the mains frequency coreless furnace for melting copper including its main properties and the choice ofadditives[sentencedict.com], agglutinants etc. is introduced.

(6) The coreless PCB transformers eliminate the magnetic cores for the frequency, magnetic saturation and core losses.

(7) After the structure of the coreless disk PM synchronous motor is analyzed the running characteristics and control differences would be summed up.

(8) The basic structure of the disc coreless PMSM are researched. The basic operating principle of the disc coreless PMSM and its characteristics of the magnetic circuit are also studied.

(9) The electromagnetic damper studied in this paper belongs to a special kind of coreless generator, which is used for the energy absorption and dissipation in order to weaken vibration.

(10) The design rules and the characteristic of the motor are analyzed. As a new type of three stators with two rotor discs coreless PMSM, the magnetic circuit of the motor become very complicated.

(11) The number control machine can process the cored and coreless spiral springs of many radices with high accuracy and quality, and meet the requirement of enterprise.

(12) A new type of ramming drier material and its working situation of medium frequency coreless induction furnace for melting aluminum are stated.

(13) The article introduces the composition lining of the mains frequency coreless induction furnace with short coils.

(14) In 1980, the institute and Beijing municipal electrical factory has successfully developed line frequency coreless bathroom plug stem bottom note type electric insulation casting.

(15) The paper presents a brushless DC torque motor with coreless armature, which hasn't static friction torque.

(16) The range of production is complete of lamination machines, coreless rewinders, sheeter machines and bag making machines for protective packaging materials.

(17) This paper analyses the main factors that affect energy consumption in coreless induction furnace, and suggests the main measures for reducing the energy consumption.

(18) The anodized aluminium housing design helps the servo to stay cool and smooth, and are equipped with a precision coreless motor which makes for a smoother, faster and more efficient servo.

(19) They also have 2 new digital servos that have state of the art digital SMT technology, have coreless motors and also come with a blue anodized heat sink as part of the casing.

(20) Their new Analogue servos come in 6kg and 9kg versions and are both metal geared with coreless motors and come with a blue anodized heat sink as part of the casing.

(21) For the smart control performance and smooth running performance, coreless motor has been a development trend of AC motor.