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频率扫描
相关语句
  frequency sweep
    Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal
    层状液晶的小振幅振荡频率扫描研究
短句来源
    The viscoelastic properties of lamellar liquid crystal, formed by non-ionic surfactant, were studied with small amplitude oscillation frequency sweep, and the effects of surfactant concentration, temperature , AgNO3 and as-produced Ag on them were investigated.
    利用小振幅振荡频率扫描研究了非离子表面活性剂所形成的层状液晶的粘弹性,考察了表面活性剂的浓度、温度,硝酸银的加入和银的生成对其影响.
短句来源
    three different kinds of frequency sweep curves appear with increasing temperature;
    随温度升高出现三种不同的频率扫描曲线;
短句来源
  frequency scanning
    Characteristics of Frequency Scanning in the CW Ring Dye Laser
    连续波环形染料激光器的频率扫描特性
短句来源
    The frequency scanning range of the cw ring dire laser has the maximum value △λ_(s max) and the minimum value △λ_(s min).
    连续波环形染料激光器的频率扫描范围存在着最大值△λ_s max和最小值△λ_s min。
短句来源
    A new method, MPR frequency scanning technique, is used to characterize the film-on-substrate system. The numerical multiparameter estimation is performed using the frequency response of MPR signals.
    首先提出了利用MPR频率扫描测量薄膜热物性的新方法,即利用MPR频响信号同时确定薄膜热扩散率、衬底热扩散率和界面热阻这三个热学参数。
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  “频率扫描”译为未确定词的双语例句
    4. The theory of cavity enhanced absorption spectroscopy is studied in detail and the numerical simulation is firstly demonstrated.
    4.深入研究了腔内增强吸收光谱的理论,首次给出了具体的解析表达形式及数值模拟计算结果,分析了腔内增强吸收光谱测量的灵敏度、线性度与激光频率扫描速度、吸收腔长改变速度的关系。
短句来源
    A novel time_resolved two_photon excitation fluorescence spectroscopic system based on a high repetition rate streak camera and capable of simultaneous measurement of fluorescence spectrum and lifetime of the samples is presented.
    建立了一台基于高重复频率扫描相机的双光子激发时间分辨荧光光谱测量系统,能够同时测量样品的荧光光谱和寿命.
短句来源
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  frequency scan
The high resolution spectra are measured tuning the length of a CO2 waveguide laser by means of a PZT yielding a frequency scan of 230 MHz around the CO2 laser lines.
      
Our frequency scan data, as well as our data for the time course of resistance and capacitance, show that the fast change is associated with both the under-the-cells and between-the-cells resistance.
      
The high sensitivity of the intracavity arrangement allowed very strong double-resonance and two-photon transition signals to be observed with high microwave-frequency scan-rates (1 GHz/min), and low microwave pumping powers (≦10mW/cm2).
      
In this way an idler frequency scan of 100-150?GHz could be obtained, after which the signal frequency hops ahead over the FSR of the intracavity etalon of the OPO (207?GHz).
      
Low noise, mode-by-mode absorption spectra are recorded at a high acquisition rate (laser frequency scan greater than 400?GHz/s) and covering four orders of magnitude in absorption coefficient.
      
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  frequency sweep
Fatigue crack growth rate test using a frequency sweep method
      
Fatigue crack propagation characteristics of a diesel engine crankshaft are studied by measuring the fatigue crack growth rate using a frequency sweep method on a resonant fatigue test rig.
      
A novel criterion for the thermorheologically simple material, and a procedure to calculate the shift factor from the angular frequency sweep and temperature ramp data were presented.
      
Various dynamic mechanical tests (strain sweep, frequency sweep, and time sweep) were performed to estimate viscoelastic characteristics and fatigue behavior.
      
Active head oscillations were performed at four discrete frequencies (0.12, 0.32, 0.80, 2.0 Hz) and over a frequency sweep between 0.1 and 2.0 Hz.
      
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  frequency scanning
In the second case, the Brewster reflection conditions are not realized, and the variations in the intensity of the reflected light observed upon frequency scanning are smaller.
      
A diplexer of this type can be used for discrete frequency scanning of high-power wave beams in systems for the suppression of the hydrodynamic instabilities of plasma in magnetic traps.
      
Amorphous carbon films were examined by low frequency scanning-probe acoustic microscopy (LF-SPAM).
      
Our results showed that the low frequency scanning-probe acoustic microscopy is a useful method for imaging subsurface defects with high resolution.
      
Frequency scanning of the laser is provided by acoustooptic modulation.
      
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One of the characteristic features of the metil claded dielectric waveguides different from the simple dielectric waveguides is that the former can excite guided waves with effective mode index N<1, which has the propagation constant less than the wave-number of the light in vacuum: ?/c. Authors measured directly the dispersion properties for N>1 and N<1 modes in the metal claded dielectric waveguides by the frequency scanning ATR method. The experimental results are in agreement with the theoretical calculations....

One of the characteristic features of the metil claded dielectric waveguides different from the simple dielectric waveguides is that the former can excite guided waves with effective mode index N<1, which has the propagation constant less than the wave-number of the light in vacuum: ?/c. Authors measured directly the dispersion properties for N>1 and N<1 modes in the metal claded dielectric waveguides by the frequency scanning ATR method. The experimental results are in agreement with the theoretical calculations. It is found that the coupling efficiency through the prism coupler to the metal claded dielectric waveguide is depending on the thickness of the metal coupling layer.The coupling efficiency reaches to the maximum when the thickness of the coupling layer is about 130A. The thickness of the coupling layer will influence the mode index of the waveguide owing to the slight changes of the dielectric constant of the coupling layer versus its thickness during their evaporation deposition in a vacuum coating system.

本文用频率扫描ATR(衰减全反射)法测量了用棱镜耦合的金属复盖介质波导中导模的色散性质,首次在实验中观察到模折射率ReN<1的光导模,实验结果与理论计算相符。实验中发现,耦合效率及N数值与金属层的厚度有关,当金属耦合层的厚度为130(?)时,耦合效率达到极大值。

This paper deals with study of period-doubling bifurcation and chaotic behavior under the control of freqency. All structure of bifurcation and chaos can be shown on the V0-ω parameter plane by the method of frequency sweeping. The normal and inverse bifurcation sequences are fully symmetric. On the plane of the control parameters there is a point where the values merge to a unique value. The proposed method is simple and fast, and can be used to study the behavior of the chaotic dynamic systems. Not only can...

This paper deals with study of period-doubling bifurcation and chaotic behavior under the control of freqency. All structure of bifurcation and chaos can be shown on the V0-ω parameter plane by the method of frequency sweeping. The normal and inverse bifurcation sequences are fully symmetric. On the plane of the control parameters there is a point where the values merge to a unique value. The proposed method is simple and fast, and can be used to study the behavior of the chaotic dynamic systems. Not only can it be used to measure quantitatively the values of the convergence ratio (?) and the rescaling factor (?) , but also to observe qualitatively some periodic windows which exists in the chaotic bands, as well as intermittent chaos. Bifurcation and chaos are the frequency response of the nonlinear systems.

在一类非线性系统中,应用频率控制方法,对倍周期分岔与混沌行为进行了研究。在V_0-ω外控参数平面上,频率扫描显示了分岔与混沌的整体结构:正的和逆的倍周期分岔序列的对称性;分岔收敛于一点的封闭性。本文中所建议的方法,将是一种研究分岔与混沌现象有效而快速的手段。它不仅能定量测量收敛比δ和标度因子α,分段展开还能定性地观察阵发混沌和嵌套在混沌带中的各种窗口等。分岔与混沌是一类非线性系统的频率响应。

The frequency scanning range of the cw ring dire laser has the maximum value △λ_(s max) and the minimum value △λ_(s min). △λ_(s max) is the free spectral range of the scaning Fabry-Perot etalon, △λ_(s min) is related with the matching degree of the all frequteney selectors in the ring cavity.

连续波环形染料激光器的频率扫描范围存在着最大值△λ_s max和最小值△λ_s min。△λ_s max就是扫描标准具的自由光谱范围;△λ_s min的大小是与环形腔中各个频率选择元件之间的匹配程度有关的。

 
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