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- In addition, mortise holes were made on the full-size timber, and resonant frequencies measured sequently. 结果显示,共振频率随榫槽数之增加仅略为减少。
- Resonant frequencies are related to the shape and size dimensions of the element. 共振频率与这种元件的形状和大小有关。
- The high order mode cutoff frequencies and resonant frequencies of TEM cell were analyzed using finite-element method (FEM). 采用三维有限元法分析了TEM传输室的高次模截止频率和谐振频率。
- A new experimental method for measuring resonant frequencies of objects is proposed by use of rotating shearing stroboscopic speckle interferometry. 摘要提出一种测量物体固有频率的新方法-旋转剪切频闪散斑干涉法。
- The numerical results of resonant frequencies and input VSWR of these antennas are given, and agree with the experimental data. 文中对该天线的谐振频率和输入驻皮比作了数值计算,其结果与实验数据相符。
- A FFT spectrum analyzer was used to measure the resonant frequency. 试验时采用六种实大尺寸试材,共振频率之测定系利用FFT频谱分析仪。
- The results showed that the resonant frequencies measured by the strain gauge method and the 3-component dynamometer were exactly the same as those measured by the tap tone method. 结果显示两种方法所测得之试材共振频率均与由打音法测得者完全相同,故可用来取代打音法。
- Detail view of sensor to measure the inner pipe's resonant frequency. 用来测量内管共振频率之感测器详图。
- A new approach,the multipole theory(MT) method,is briefly described for the computation of resonant frequencies of a cavity resonator. 本文给出用多极理论分析谐振腔本征值问题,以及用多极理论分析谐振腔本征值问题的使用规则。
- The mechanism and condition of gas column resonance, the influences of some factors on resonant frequencies, and the resonant features were investigated. 对气柱谐振机理、条件、有关因素对谐振激励频率的影响及谐振状态下管内振荡流特性进行了探讨。
- Analysis is made on thermally excited deflection and resonant frequency of the micromachined silicon resonant sensors. 分析了硅微机械谐振式传感器在热激励下的挠曲及谐振频率变化,建立了相应的数学模型,并对热挠曲灵敏度进行了优化设计。
- Capacity existing in the circuit and consequently the resonant frequency of the antenna system. 天线尺寸决定回路中的电感量和电容量,从而也决定天线系统的谐振频率。
- The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied. 摘要研究了预压力对超声马达共振频率的影响。
- The firmness of watermelon can be nondestructively evaluated by measuring the resonant frequency of the watermelon. 西瓜的硬度可以通过检测其固有频率得到。
- Combined with FEM design method, the longitudinal and bending resonance frequencies are degenerated. 驱动足处于变幅杆不同位置时驱动椭圆振动轨迹有所不同。
- Qf value and temperature coefficient of resonant frequency decreased gradually as (Lii/2Ndi/2)TiO3 content increased. Qf值和谐振频率温度系数随(Li_(1/2)Nd_(1/2))TiO_3含量增加而线性下降。
- Keywords: ultrasound, achilles tendon, mechanical properties, resonant frequency. 关键词:超音波、阿基里斯腱、机械特性、共振频率。
- The results showed that the resonant frequency decreased slightly with increased number of mortise holes. 此一结果将有助于对老旧建材弹性留存率之评估,有助于此等建材之有效再利用。
- The line with an impedance of approximately 37.5 ohms around 2000 Hz is this driver resonant frequency (Fs). 该线与一阻抗约37.;5欧姆左右,2000年赫兹这是司机的谐振频率(财经事务)。
- From computation results, we find that a PEC antenna with dielectric coating or substrate will show lower resonance frequencies. 从数值结果可看出,介质涂覆金属表面或作为金属的衬底,有助于增大天线的电尺寸。