1) withdrawal weighting transducer
抽指加权叉指换能器
1.
A new method to design source-withdrawal weighting transducer is presented,which avoids the complexity when using traditional design methods.
提出了极性抽指加权叉指换能器设计的新方法,克服了传统设计方法的繁杂性。
2.
In order to avoid complexity for designing electrode withdrawal weighting transducer, a new method for designing electrode withdrawal weighting transducer is adopted.
为克服传统方法设计抽指加权叉指换能器的繁杂性,提出了一种全新的抽指加权叉指换能器的设计方法,它模仿生物进化规律,将所设计的抽指加权叉指换能器进行二进制编码,并根据任意给定的目标频率响应曲线和抽指加权叉指换能器的频响特性构造适应度函数,同时考虑抽指加权叉指换能器的指条抽取后的邻近效应,通过排序选择、一点交叉和变异等遗传操作,自动进化出符合任意给定频率响应特性的抽指加权换能器。
2) capacitive weighted transducer
电容加权叉指换能器
3) interdigital transducer
叉指换能器
1.
New Equivalent Circuit Model of Interdigital Transducer and Its PSPICE Simulation;
叉指换能器新的等效电路模型及其PSPICE仿真
2.
To solve these problems, the properties of Lamb wave excited by interdigital transducer in the piezoelectric substrate covered by liquid were studied based on its piezoelectricity and anisotropy.
在考虑晶体的压电性和各向异性基础上 ,从声的波动理论出发 ,对叉指换能器在液体 -压电晶片界面上兰姆波的激发理论及其性质进行了研究 。
3.
There is the excitation of bulk acoustic waves inside the substrate besides the excitation of surface acoustic waves along the substrate surface when interdigital transducer is powered by the electrical signal with one frequency.
文章对叉指换能器在不同切型基片内激励声体波的角谱（能量分布）进行了研究，所得结果在研制声学传感器、声表面波器件时具有重要意义。
4) IDT
叉指换能器
1.
The Making Technology of IDT;
声表面波器件叉指换能器的制作技术
2.
When SAW is excited by the IDTs on the substrate,and BAW is excited as well Based on this principle,experiments to suppress BAW have been done by grooving on the back of the substrates such as ST,LT,LN with the filter center frequency of 28 MHz,70 MHz,71 MHz,120 MHz respectively The BAW suppression is observed and the experimental results are also given in this pape
当叉指换能器在基片上激励声表面波模式时 ,同时伴随着体声波的激励。
3.
The design and fabrication of acoustical waveguide and interdigital transducer (IDT) in the quasi-collinear acousto-optic tunable filter (AOTF) was investigated experimentally by using SiO2/In2O3 film on LiNbO3 substrate.
以LiNbO3晶体为基底,SiO2/In2O3为镀膜材料,设计并制作了用于准共线型声光可调谐滤波器(AOTF)的声波导及其叉指换能器(IDT),研究了制作工艺,实验测量了该声波导的传输性能。
5) Interdigital transducers
叉指换能器
1.
A method to simulate surface acoustic wave device(SAWD) is proposed,in which impedances of Mason equivalent circuits are equaled by LC networks called as subcircuit,and piezoelectric material between input and output interdigital transducers are equaled by non-loss transmission line with the same delay time.
提出了采用PSPICE仿真声表面波器件的方法,它将叉指换能器一个周期段Mason等效电路复阻抗采用LC串并联网络等效,并以子电路形式由叉指换能器等效电路调用,两换能器间声传播路径采用等延迟时间的无损耗传输线等效,同时考虑外电路影响,仿真得到的异型声表面波器件的幅度特性与实测结果基本相符。
2.
The excitation of bulk acoustic waves(BAWs) by interdigital transducers(IDTs)is thoroughly studied in the structure consisting of piezoelectric crystal solid layer liquid.
对压电晶体 -固体 (层 ) -液体结构中叉指换能器的体声波激励效应进行了深入探讨 ,通过引入压电晶体-固体层界面的界面有效介电常数 ,研究了叉指换能器的体声波激励效应与晶体切向、电边界条件及固体层归一化厚度之间的关系。
6) interdigital transducer(IDT)
叉指换能器
1.
The P matrix of IDT whose electric ports both connected in serial is difficultly joined when we analysis interdigital transducer(IDT).
通过巧妙的矩阵变换,避开了复杂的公式推导,成功解决了电学端口串联叉指换能器中级联的P矩阵合成问题。
2.
If the substrate of largerelectromechanical coupling coefficient(suchas YZ-LiNbO3substrate)is used forwavelettype ofinterdigital transducer(IDT),its frequency characteristic curve is notsmooth,butits in-sertion loss is smaller.
小波式叉指换能器使用机电耦合系数比较大的基片(如YZ-L iNbO3基片)时,其频率特性曲线不光滑,但插入损耗小;小波式叉指换能器使用机电耦合系数比较小的基片(如X 112°Y-L iTaO3基片)时,其频率特性曲线光滑,但插入损耗大。
补充资料：炸指盖
【菜名】 炸指盖
【所属菜系】 韩国
【特点】 呈牙黄色，外脆里嫩，油而不腻。
【原料】
狗脯方肉500克，鸡蛋1个，炖酱500克，水淀粉50克，精盐10克，花生油750克（实耗50克），芝麻盐25克，花椒5克，桂皮5克，大料5克。
【制作过程】
1、狗脯方肉洗净，放入清水中，浸泡一天后，捞出，控干，放入煮锅内，加清水、花椒、大料、桂皮大火烧开，去浮沫，煮半熟后，捞出，洗净。 2、炖酱用清水调稀，倒入过滤煮肉汤，再放入狗脯方肉，炖烧至酥烂时，捞出，控干，待冷却后，切成长10厘米，宽2厘米的斜刀片。 3、鸡蛋、水淀粉、精盐放入碗内，调成面糊，将肉片沾上面糊。 4、炸锅放入工花生油，烧至八成热时，投入沾糊狗肉片，炸至表面呈牙黄色时，捞出，控油，用刀斩成手指块后，装盆上桌，附带小碟芝麻盐那可。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条