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1)  tunable ultra-narrow bandwidth filter
可调谐超窄带滤波
2)  ultra-narrow bandwidth optical filter
超窄带滤波
1.
We advanced the theory of ultra-narrow bandwidth optical filter consists of two-dimensional (PCADOF) photonic crystal composed of anomalous dispersion material cylinders set on dielectric medium with the square lattice.
本文讨论了利用由反常色散材料构成的二维(2D)光子晶体实现超窄带滤波的原理,并分析了铯原子蒸汽6 P3 2? 6S12谱线的超精细结构,得到了这条谱线附近的反常色散曲线。
3)  a tunable narrow-band light source
可调谐窄带光源
1.
Sensing fiber Bragg grating(FBGs) array and reference FBGr are scanned by a tunable narrow-band light source composing a broadband source and a wavelength selector IPD manufactured by us.
用宽带光源和自主研制的波长选择器(IPD)构成可调谐窄带光源,对测量光纤光栅(FBGs)阵列和参考FBGr进行波长扫描,借助光电探测器(PIN)和DSP信号处理系统实现复用传感系统的解调。
4)  tunable filter
可调谐滤波
1.
A tunable filter is formed when a plasma defect is introduced in the one-dimensional dielectric-air microwave photonic crystal.
据等离子体的强色散特性,其等效折射率与电磁波频率及等离子体频率等参数有关,因而可以通过改变等离子参数,使一维微波光子晶体缺陷层的谐振频率发生偏移,实现微波光子晶体的可调谐滤波特性。
5)  ultra-narrow bandwidth filter
超窄带滤波器
6)  narrowband filter
窄带滤波
1.
Related technologies of narrowband filter low-velocity flow electromagnetic flowmeter
窄带滤波微流量电磁流量计的相关技术
2.
The concept of quasiperiodic one-dimension photonic crystal nanometer film is proposed,and research finds that it can be applied to realize optic narrowband filter.
研究表明,用它可以实现光学窄带滤波。
3.
Furthermore,the change of the noise through narrowband filter and detection circuit and the effect on the radar tracking precision are analyzed in quantity.
对噪声经过窄带滤波、检波电路后的变化及其对雷达跟踪精度的影响进行了定量分析。
补充资料:胎圈过窄、子口窄、圈窄等
分子式:
CAS号:

性质:又称胎圈过窄、子口窄、圈窄等。轮胎工业中指两胎圈宽度不一致的现象。

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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