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- resonance frequency method 谐振频率法
- The superimposition method adds a signal at its resonance frequency with a signal at the subharmonic frequency. 本研究并提出两类波形以有效诱发穴蚀效应，分别为串接法及重叠法。
- Combined with the graph correlating the first resonance frequency with driving point location, the method localizes the crack by monitoring a jump in the graph. 结合裂纹梁第一阶谐振频率与驱动点位置关系曲线，利用曲线上出现的突变点，准确地识别了梁的损伤状态和裂纹损伤位置。
- The principle and method of testing oil body humidity are discussed,according to the changed trait in resonance frequency and quality factor of resonance cavity when microwave acting on oil body. 根据微波通过油体后,谐振腔的谐振频率和品质因数均会发生相应的变化的特点,探讨了测量油体湿度的原理及所采取的方法。
- Finally, the vibration modes and corresponding resonance frequencies of the USM were analyzed, and the working frequency was given By the finite element method. 通过有限元方法，得到了所设计的超声马达的各阶振动模态和相应的振动频率，指出了其工作频率。
- Based on the equivalent circuit, the resonance frequency equation is derived and the resonance frequency is obtained. 在此基础上，推出了弹性薄圆盘径向振动的频率方程以及振子共振频率的表达式。
- 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。
- Resonance frequency of the microvalve is much higher than the working frequency of the thermal actuated micropump. 分析表明本文中的微型阀的固有频率比热驱动微型泵的工作频率高得多，因此阀片的动态特性可不予考虑。
- Changing the structure of the excitation device can change the resonance frequency of the PZT. 通过改变压电陶瓷的结构可以改变压电陶瓷的谐振频率。
- This paper introduces the principle and tested results of measuring nodulizing grade by audio frequency method. 介绍了音频法检测铸件球化级别的原理及试验结果。
- Frequency method and Bayesian method are the two main data mining algorithms used in pharmacovigilance nowadays. 目前各国普遍使用的数据挖掘方法主要有频数法与贝叶斯法。
- Furthermore, mineral oil can reduce resonance frequency and change VSWR, but weekly affect detection performance of antenna sensor. 变压器油使天线的谐振频率有所降低，改变了天线的驻波特性，但不影响天线的检测能力；
- The electronic filter attenuates the resonance frequency of the accelerometer to prevent overloading of the DA equipment. 电子滤波器可以减少加速表的谐振频率，防止DA设备过载。
- Abstract : The two frequency method for measurring corrosion reaction resistance based on a. c. impedance and numerical integration has been proposed. 摘要 ： 提出了基于交流阻抗和数值积分原理的二点频率法。
- 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。
- As the aperture width of input iris is narrowed down, SWR decreases, before reaching critical coupling, then increases, and resonance frequency also slightly rises. 输入膜片缝隙由宽变窄的过程中，驻波比由大变小，达到临界耦合后，驻波比又由小变大，且谐振频率略有升高；
- The results show that anomaly frequency method is effective for the analysis of high frequency information characteristics in digital subsurface fluid data. 结果表明，异常频次法是地下流体数字化资料高频信息特征分析及其应用的有效方法。
- Based on the property of electromagnetic waves and the electric technology, the light velocity is obtained by measuring the resonance frequency of a serried RLC circuit. 根据光的电磁波性质;结合电子技术基础;通过测量RLC串联电路的谐振频率间接测量了光速.
- Based on the clump intensity index, regressive analysis method and zero frequency method, the spatial distribution pattern of Latori bicolor (Walker) larvae was studied. 应用聚集度指标法、回归分析法、零频率方法对两色绿刺蛾幼虫在毛竹林间的分布型进行测定。
- The study shows that the resonance frequency of the equipment can be restricted within the range of prescriptive frequency by means of adjusting the length of cavity. 研究表明：通过微调腔体长度并优化结构参数，可以将该装置的工作频率限制在规定的范围内；
