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。
When the conductance of sound radiation for IDT is equal to the output conductance for the matching network, the reflection loss and transmission loss can be reduced. 叉指换能器的声辐射电导等于匹配网络输出端电导时,可以减小反射损耗和传输损耗。
The IDT must be properly initialized before the kernel enables interrupts. IDT必须在内核开启中断前被正确地初始化。
For the need of the climbing international market, we have already established a perfect quality management system and after-sale service, and passed "GB/ T19001-2008 idt ISO9001:2008". 为了满足市场严格的质量要求,我们建立了完善的质量管理体系和售后服务,并通过ISO9001:2008质量管理体系认证。
To obtain knowledge and data from incomplete decision table ( IDT), the paper presents a new doubly variable precision limited tolerance rough set theory model ( VPLTRST). 为了能够从不完备决策表(IDT)中进行知识发现和数据挖掘,提出一种新的具有对称性的双重可变精度限制容差关系粗集模型(VPLTRST)。
For the first time, copper was used as the IDT ( interdigital transducer) material for the surface acoustic wave ( SAW) actuation device in this experiment. 本实验中首次采用铜材料作为声表面渡驱动装置的叉指换能器材料。
The comb transducer can be considered as the network of the parallel connection of some units of IDT electrical ports and the series connection of their acoustic ports. 梳状换能器可看成若干叉指单元电端并联,声端首尾串联而成的网络,采用单向结构可降低采用这种结构的声表面波延迟线的损耗。
ABAQUS, a finite element program, is selected to carry on the numerical simulation of the asphalt mixture indirect tensile tests ( IDT) with2D and3D models, appropriate meshing and material model. 应用有限元软件ABAQUS,采用合适的材料模型建立有限元模型,模型网格按不同密度进行划分,对沥青混合料劈裂试验进行二维与三维数值模拟对比研究。
Accounting for the bulk-wave effects in SAW devices, it introduces the BAW excitation theory on IDT. 针对声表面波器件中体波效应的影响,介绍了叉指换能器激发声体波的机理。
Has analyzed the IDT intensity serviceability and the limitation, proposed the improvement measure. 分析了IDT强度的适用性及局限性,提出了改进措施。
IDT/ ZnO/ Diamond structure SAW filter is designed, fabricated and tested. IDT/ZnO/Diamond结构的声表面波滤波器被设计,制作出来并进行了测试。
Broadband Analysis of Diffraction in SAW IDT 宽带SAW-IDT衍射分析
The defects of main detector, Imange Dissector Tube ( IDT), in HIPPARCOS Space Astrometry Satellite are discussed. 本文分析了依巴谷空间天体测量卫星主探测器析像管和恒星测绘仪的工作缺点;
According to the research on the computer virus which involves in manipulating interrupt description table ( IDT), we present a technology of computer virus detection based on immune theory. 本文通过对一类涉及到对中断向量表进行操作的计算机病毒作用机理的研究,提出了一种基于免疫理论的计算机病毒检测技术。
A New Type of Liquid Density Sensor Using IDT Technics 一种采用IDT技术的新型微量液体密度传感器
The theory, design, structure and the application of SAW sensor in passive tag are discussed in the paper. 本文基于信息敏感的角度对SAW传感器的理论、设计、结构、系统研究方向,在无源标识器(IDT)应用军方面进行了探讨。
This paper introduces the necessity of developing database by using internet technology and the principle of working. Furthermore, it points out the importance of developing multi-platform database and demonstrates the principle and method of technology in details by PowerBuilder IDT. 本文阐述了利用Internet技术开发数据库的必要性及其实现的工作原理,并进一步指出在此基础上进行多平台数据库开发的重要意义,并结合PowerBuilder的IDT详细介绍实现技术的工作原理和具体方法。
This paper discusses the principle and method of designing SAW IDT with specific group delay response, using a "buildingblock" approach and homogeneous fingers. 论述用积木式方法,采用均匀条宽和间隔的叉指结构,实现对群时延有特殊要求的声表面波叉指换能器的设计原理和方法。
The optimal IDT aperture and the aperture ratio are determined by calculating diffraction response. 最佳的IDT孔径和孔径比值由计算滤波器衍射频响确定。
A New Type of High Frequency Acoustic Bulk Wave Transducer Using IDT Technics 一种采用IDT技术的新型高频声体波换能器
It also presents the RF-SAWF's frequency response based on this equivalent circuit model. Simulation results verify that stepped-finger IDT can generate desired harmonic effectively and suppress fundamental and other unwanted harmonics. 并根据该模型计算并模拟了RF-SAWF的幅频响应,模拟结果证明阶梯型IDT可有效地激发高次谐波,抑制基波和其他无用谐波。
And cooperating with IDT processor, it achieves the panorama mode, the feature perspective mode, debug mode and stop mode. 协同IDT嵌入式处理器实现全景工作模式、特景工作模式、停止工作模式和调试工作模式。
Then we analyzed the Interdigital Transducer ( IDT) and acquired the device parameters. 同时对声光叉指换能器(IDT)进行了理论分析,并通过计算得到了IDT的指宽?指对数等参数?
IDT contains interrupt number and recordset made up of ISR addresses. IDT是包含中断号和ISR地址组成的记录集。
Through the review of the previous studies home and abroad, this paper choose the widely used TAM theory model and the strong explanatory IDT model as theoretical basis, then take the compatibility in IDT model as an extension variable into TAM model. 并通过回顾以往国内外学者的研究文献,选用了学术界广泛应用的TAM理论模型和有较强解释能力的IDT理论作为理论基础,将IDT理论中的兼容性作为扩展变量加入TAM模型中。
The mathematic model of pulse response of SAW tags is deduced from the pulse response model of IDT. 从叉指换能器(IDT)的脉冲响应模型推导出SAW标签的脉冲响应的数学模型。
We discuss the relationship between IDT impulse response and its geometric structure. 论述了叉指换能器脉冲响应与换能器几何结构的关系。
IDT is made of the piezoelectric material depositing on the surface, the pattern of which resembles the cross-fingers. 叉指换能器是由沉淀在压电材料基片上形如人的手指交叉图案所构成,它可以产生声表面波。