نتایج جستجو برای: linear motors
تعداد نتایج: 494508 فیلتر نتایج به سال:
An operation of any electromechanical device, in that number electric machines, it is electric motors and generators, can be seen as: a) An impact of magnetic field on a piece of ferromagnetic material, b) An interaction of two magnetic fields: magnetic field of primary part and magnetic field of secondary part; the secondary magnetic field can be generated: either by a current flowing in a win...
Initially, linear motors have been particularly dedicated to transportation systems. Nowadays, linear motors are meant to replace a system using a rotating motor and a transmission to realize a linear movement. With linear motors the performances increase considerably since the mechanical limitations are removed. This leads to a better precision, a higher acceleration and a higher speed of the ...
Linear motors are strong candidates in electromagnetic launching technology for space-use. In this paper, two types linear motors, including parallel magnetic circuit linear permanent magnet brushless DC motor (PMC-LPMBDCM) and serial magnetic circuit linear permanent magnet brushless DC motor (SMC-LPMBDCM), have been presented for electromagnetic catapult. The rudimental configurations of thes...
Linear motors are widely used in cryogenic fields to drive Stirling-type cryocoolers. Generally the Joule heat loss associated with copper lead is considered as the main loss in motors while the iron loss is ignored at a lower frequency operation, not only because it’s regarded as small enough but also it’s difficult to measure or calculate. This paper introduces an experimental method to measu...
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