压电陶瓷材料与元件.pptx

按一下以編輯母片標題樣式,按一下以編輯母片,第二層,第三層,第四層,第五層,#,ELECERAM TECHNOLOGY CO.,LTD,壓 電 陶 瓷 材 料 與 元 件,(PIEZOELECTRIC CERAMIC MATERIAL AND DEVICES),寰辰科技股份有限公司,桃園縣桃園市龍壽街,231,號,Tel:[phone],ELECERAM TECHNOLOGY CO.,LTD,壓電效應,西元,1880,年法國居禮兄弟於石英晶體上發現壓電效應。,壓電,材料分類,晶體,Quartz,Rochele salt,etc.,陶瓷,BaTiO3,PZT,PMN,PT,etc.,高分子,PVDF,複合材料,陶瓷,/,高分子複合材料,ELECERAM TECHNOLOGY CO.,LTD,正壓電效應,正壓電效應,施加應力在壓電晶體上,會產生電荷,。,D=Q/A=d T,-,+,F,+,-,+,-,F,+,-,-,+,ELECERAM TECHNOLOGY CO.,LTD,逆壓電效應,逆壓電效應,施加電壓在壓電晶體上,會 產生應變,。,S=d E,+,-,+,-,+,+,-,-,ELECERAM TECHNOLOGY CO.,LTD,壓電效應,壓電方程式,d=D/T=S/E,狀態方程式,D=d T+,T,E,S=s,E,T,+d E,ELECERAM TECHNOLOGY CO.,LTD,壓電參數,d,33,d,31,:,壓電電荷係數,(,壓電應變係數,),g,33,g,31,:,壓電電壓係數,Q,m,:,機械品質因數,保持振動能力的指標,k,33,k,31,k,p,:,機電偶合係數,機電轉換效率指標,N,33,N,31,N,P,:,頻率常數,Y,E,31,Y,E,33,:,楊氏係數,T,c,:,居禮溫度,ELECERAM TECHNOLOGY CO.,LTD,單位晶胞正電荷中心與負電荷中心不在相同位置,形成淨電偶極距,(polarization),。,常見結晶構造,:,鈣鈦礦結構,(perovskite),例如 鋯鈦酸鉛,(PZT),鈦酸鉛,(PT),鈦酸鋇,(BaTiO3),。,壓電陶瓷內部晶體排列凌亂,需加電壓處理,(poling),後,使晶體排列一致,在居禮溫度以下才會具有壓電性,。,壓電陶瓷材料,ELECERAM TECHNOLOGY CO.,LTD,鈣鈦礦結構,(Perovskite Structure),ELECERAM TECHNOLOGY CO.,LTD,極化過程微結構變化,ELECERAM TECHNOLOGY CO.,LTD,PZT,未加電壓時,PZT,加上電壓時之內部離子運動,O,2,Pb,ELECERAM TECHNOLOGY CO.,LTD,PZT,相圖,ELECERAM TECHNOLOGY CO.,LTD,三元系,PZT,相圖,Pb(Mg,1/3,Nb,2/3,)O,Pb(Zn,1/3,Nb,2,/,3,)O,3,ELECERAM TECHNOLOGY CO.,LTD,P-E,遲滯曲線,硬性壓電陶瓷,ELECERAM TECHNOLOGY CO.,LTD,P-E,遲滯曲線,軟性壓電陶瓷,ELECERAM TECHNOLOGY CO.,LTD,軟性與硬性壓電陶瓷比較表,Characteristic,Soft,Ceramic,Hard,Ceramic,壓電係數,larger,smaller,揚氏係數,smaller,larger,介電常數,larger,smaller,介電損失,higher,lower,機電偶合係數,larger,smaller,電阻係數,very high,lower,機械品質因數,low,high,矯頑電場,low,higher,線性度,poor,better,極化,/,去極化,easier,more difficult,ELECERAM TECHNOLOGY CO.,LTD,應用限制,電壓,:,電壓方向與極性相反時,會有去極化作用,;,電壓值大於崩潰電壓,壓電陶瓷會破損,。,功率,:,功率愈高壓電陶瓷會發熱,造成去極化或破損,。,溫度,:,溫度愈高,壓電性逐漸減弱,高於居禮溫度時,永久喪失壓電性,。,應力,:,應力方向與極化方向相反時,會有去極化作用,;,外力超過機械強度,會破損。,ELECERAM TECHNOLOGY CO.,LTD,積層式壓電陶瓷元件製作流程圖,ELECERAM TECHNOLOGY CO.,LTD,應用例,產生器,-ignitor for fuel lighter,gas stoves,battery for portable device,感測器,-force sensor,accelerometer,pressure sensor,knock sensor,shock sensor,crash sensor,致動器,-micropositioning for lens or mirror,hydraulic valve,ink jet printer,ultrasonic motor,electronic switch,換能器,-ultrasonic cleaner,welder,atomizer,buzzer,air transducer,delay line,變壓器,ELECERAM TECHNOLOGY CO.,LTD,已商業化之積層壓電元件,壓電變壓器,-,升壓,壓電平面喇叭,(DMA)-,手機,致動器,-,微形馬達,手機,數位相機,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器結構,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器應力及位移分佈,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器原理,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器昇壓比,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器負載效應,ELECERAM TECHNOLOGY CO.,LTD,積層壓電變壓器,www.magsoft-,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器與磁性變壓器比較,ELECERAM TECHNOLOGY CO.,LTD,壓電變壓器與磁性變壓器比較,ELECERAM TECHNOLOGY CO.,LTD,單層壓電變壓器應用實例,單層式壓電變壓器,：用於,臭氧產生器、負離子產生器、靜電消除裝置、電子口罩,等等高壓產生單元模組,ELECERAM TECHNOLOGY CO.,LTD,積層壓電變壓器應用實例,積層式壓電變壓器,：用於,筆記型電腦液晶顯示器、桌上型電腦液晶顯示器、個人數位助理,(PDA),、數位相機,(DSC),、數位攝影機,(DSC),之冷陰極管電源模組,等。,ELECERAM TECHNOLOGY CO.,LTD,經由雙簧式壓電致動器出力使基板產生振動從而構成一揚聲機制：,用於,行動電話、個人數位助理,(PDA),、筆記型電腦等之發聲模組,壓電式平面喇叭,D,istributed,M,ode,A,ctuator(DMA),ELECERAM TECHNOLOGY CO.,LTD,提升電容值及作用電場,降低驅動電壓,提升音壓,積層壓電平面喇叭,ELECERAM TECHNOLOGY CO.,LTD,3D of DMA G1,ELECERAM TECHNOLOGY CO.,LTD,DMA G-2,較佳音質電腦之動圈式喇叭尺寸,.40,x 20 x 15mm deep(12cm,).,相同頻率響應及音壓之壓電平面喇叭尺寸,42 x 10 x 2.5mm,(1.05cm,).,12 Times Smaller,ELECERAM TECHNOLOGY CO.,LTD,壓電平面喇叭體積效應,DMA is 5 times lighter,MICROSPEAKER 15gms,DMA 3gms,ELECERAM TECHNOLOGY CO.,LTD,重量效應,筆記型電腦,無須出音孔,易於薄型化,手機,無須出音孔,較大螢幕,面板,透明喇叭,易於薄型化,X,broken,smooth,ELECERAM TECHNOLOGY CO.,LTD,產品造形設計,Cone,Micro-,speaker,DMA Speaker,Actual measured results mainstream notebook PC.Two DMAs attached to rear lid.,ELECERAM TECHNOLOGY CO.,LTD,Frequency Response,DMA vs MICROSPEAKER,ELECERAM TECHNOLOGY CO.,LTD,壓,電,式,平面喇叭,與,傳統線圈,式,喇叭特性,比,較表,ELECERAM TECHNOLOGY CO.,LTD,DMA,應用實例,N506i,V501T,ELECERAM TECHNOLOGY CO.,LTD,致動器型態,Longitudinal Wafer,Transverse Wafer,Stack Actuator,Bimorph(extension),Bimorph(bending),*,致動器亦稱為馬達,ELECERAM TECHNOLOGY CO.,LTD,雙簧片形致動器,(Bimorph actuator),並聯型,串聯型,並聯型,(,偏壓,),ELECERAM TECHNOLOGY CO.,LTD,致動器工作曲線,ELECERAM TECHNOLOGY CO.,LTD,ELECERAM TECHNOLOGY CO.,LTD,致動器應用於相機鏡頭模組,ELECERAM TECHNOLOGY CO.,LTD,致動器,螺旋式,ELECERAM TECHNOLOGY CO.,LTD,產生器,(Generator),ELECERAM TECHNOLOGY CO.,LTD,產生器工作曲線,ELECERAM TECHNOLOGY CO.,LTD,ELECERAM TECHNOLOGY CO.,LTD,振盪子產品應用實例,本公司生產之霧化振盪子,用於加濕機、精油霧化以及醫療霧化領域,ELECERAM TECHNOLOGY CO.,LTD,振盪子產品應用實例,本公司生產之美容復健用超音波按摩頭,ELECERAM TECHNOLOGY CO.,LTD,空中換能器應用實例,汽車倒車雷達,ELECERAM TECHNOLOGY CO.,LTD,