A realtime depolarization strategy is put forward that takes polarization voltage and soc as inputs , and the width of depolarization pulse , revised by solution temperature , as output 提出了以蓄電池極化電壓和蓄電池的荷電狀態(tài)為輸入變量,以去極化脈沖的寬度作為輸出并根據(jù)蓄電池電解液溫度進(jìn)行修正的實(shí)時(shí)去極化策略。
Abstract : on the basis of the theory of controlled phase - changes of piezoceramics , high - temperature polarizing technology makes initial working temperature a little higher than curie temperature of a sample , but the polarization voltage needed is greatly lower than the one needed in normal polarization ( only 1 / 10 - 1 / 5 ) . the improved polarizing technology can make polarization more complete 文摘:壓電陶瓷的高溫極化是利用受控的場致有序化的順電鐵電相變原理,使起始極化溫度略高于樣品的居里溫度,但所需的極化電壓大大低于常規(guī)極化,僅為1 / 10 - 1 / 5 ;選擇較高的降溫升壓速率,可使極化趨于更加完全,具有常規(guī)極化工藝無可比擬的優(yōu)越性。
The lead zirconate titanate ( pzt ) / polymer composite presented large tan5 and dynamic modulus when the composites were exposed to higher polarization voltage and longer polarization time , because of the uniform dispersion of ceramic in polymer matrix and the strong interaction between grain and polymer . the morphology of the composites , namely the degree of the grains dispersion in polymer , can be observed through scanning electric microscope ( sem ) 顆粒結(jié)構(gòu)性高的壓電陶瓷,其復(fù)合體系內(nèi)耗大;在高極化電壓、長極化時(shí)間下,壓電陶瓷顆粒在聚合物中分散比較均勻,與聚合物接觸面大,相互間作用強(qiáng);在外力作用時(shí),體系tanb 、 g , , g ?呈現(xiàn)大的值。