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1)  electrochemical frequency modulation
电化学频率调制
1.
A system for electrochemical frequency modulation (EFM) measurement was set up, which consisted of a potentiostat, a laptop computer, a NI DAQ card and application softwares developed with LabVIEW 7.
电化学频率调制(electrochemical frequency modulation,EFM)是一种腐蚀速度检测的新方法,能够同时测得腐蚀电流密度和Tafel常数。
2)  EO-FM
电光频率调制
3)  QFM Quantized Frequency Modulation
量化频率调制
4)  frequency modulation
频率调制
1.
Numerical analysis for the stochastic resonance of frequency modulation;
频率调制随机共振的数值分析
2.
A reflective dielectric resonator of performing frequency modulation for incident vibrated signal;
一种对振动信号实现频率调制的反射型介质谐振器
3.
Characteristic Analysis of Wavelength Tuning and Frequency Modulation of Coupled Cavity Laser Diodes;
耦合腔激光器的波长调谐与频率调制特性分析
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5)  FM
频率调制
1.
In order to meet the requirement of high speed underwater acoustic communication,the OFDM/FM method is given in the paper,which is based on the orthogonal frequency division multiplexing(OFDM)technique.
为满足高速水声通信的需要,在对正交频分复用(OFDM)技术的原理进行研究的基础之上,结合水声信道的特性,给出了进行二次频率调制(FM)的OFDM/FM实现方法,并通过仿真得到了该方法的性能。
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6)  modulation frequency
调制频率
1.
The effect of modulation frequency on phase demodulation is analyzed in sinusoidal phase modulating(SPM) interferometry for displacement measurement.
针对正弦相位调制(SPM)干涉测量技术用于位移测量时,调制频率对干涉信号相位解调的影响,提出一种调制频率的优化选择依据。
2.
The relations between pyroelectric current and sensitive area as well as modulation frequency are analysed.
本文导出热释电列阵的热传递函数,明确地分析了热释电探测器灵敏元的面积,电流响应率及调制频率的关系。
3.
lt has a deep study on low-frequency modulation characteristics, which includes the modulation wave through high-speed photodetector, the relationship between modulation frequency and threshold current , and the relationship between average output power and modulation frequency.
给出了用高速光电探测器探测到的调制信号波形,并进一步分析了调制 频率与闭值电流之间的关系,以及调制频率与平均输出功率之间的关系。
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补充资料：电化学调制红外光谱
分子式：
CAS号：

性质：该法使用色散型光谱仪，信号检测系统采用锁定技术。实验时随着红外波长非常慢的变化，电极在两个选定的电位下以低频(如约10Hz)的方波(或正弦波)调制。电极响应信号包括反射率直流分量R和由电位调制引起的小交流分量ΔR，以及整个频率区的噪声，通过锁定放大器得到与调制电位同频率的信号ΔR。把几次扫描的光谱平均，得到以ΔR/R对波长或波数的红外光谱。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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