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mechanical commutation中文什么意思

發(fā)音:   用"mechanical commutation"造句
  • 機(jī)械換向
  • mechanical:    adj. 1. 機(jī)械的;機(jī)械制的。 2.機(jī)械學(xué)的,力學(xué)的 ...
  • commutation:    n. 1.換算,交換,變換。 2.減刑;抵償;抵償金;劃 ...
  • quantum mechanical commutation circuit:    量子力學(xué)開關(guān)電路
  • commutation:    n. 1.換算,交換,變換。 2.減刑;抵償;抵償金;劃撥。 3.【電學(xué)】整流,換向。 4.〔美國〕使用長期票(在兩地間)經(jīng)常來往。
  • angle of commutation:    換向角; 太陽-行星角距
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例句與用法

  1. Mechanical commutation ( graphite or precious metal brushes ) , highest efficiency , low inductance , low electromagnetic interference , multiple combination possibilities with gears , feedback devices and control electronics
    機(jī)械換向器(石墨和金屬電刷) ,高效率,小電感,電磁干擾小,能與多種齒輪箱,反饋設(shè)備和控制電子元件配合使用。
  2. The permanent magnet brushless dc motor is a dc motor using electronic commutation in place of mechanical commutation in fact , so it has excellent characteristics of dc motors , for example good start and timing performance . it simplifies the motor ' s structure and overcomes the friction disadvantages of ordinary dc motor because it does n ' t use mechanical commutation . it is extensively used in aviations , robots , digital machine tool and so on
    永磁無刷直流電動機(jī)實(shí)際上是以電子換向代替機(jī)械換向的直流電動機(jī),因而保持了直流電動機(jī)的優(yōu)良特性,具有較好的起動和調(diào)速性能,又因它無需機(jī)械換向器使電機(jī)的結(jié)構(gòu)簡單,可以從根本上克服一般有刷直流電動機(jī)易于產(chǎn)生換向火花的弊病,在航天、機(jī)器人、數(shù)控機(jī)床等許多工業(yè)領(lǐng)域已得到廣泛應(yīng)用。
  3. The chip jk3ce that is one of micro - controllers in motorola 68hc08 family is used as control unit in this system . the zero crossing point of the back emf can be obtained by comparing the terminal voltage with the virtual neutral point , then using the software of the system can figure out the commutation period . the electronic commutation replaces the mechanical commutation in this way
    本系統(tǒng)采用的控制芯片為motorola系列單片機(jī)中的jk3ce ,反電勢過零點(diǎn)可以通過比較電機(jī)端電壓和虛擬中點(diǎn)電壓來得到,將過零點(diǎn)信號送往單片機(jī)捕捉端口后由系統(tǒng)軟件來確定換相時刻,這樣就可以由電子換向裝置替代機(jī)械換相裝置,有利于提高系統(tǒng)運(yùn)行的可靠性,并降低了系統(tǒng)維護(hù)的費(fèi)用。

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