1) 4 multiple frequency
4倍频
1.
A design scheme of angle measurement circuit for multi-clannel incremental encoder based on FPGA is interoduced,which is composed of 4 multiple frequency,direction-judgment and counter circuit.
提出了一种基于FPGA的多路增量编码器测角电路设计方案,它主要由4倍频电路、方向判别电路和计数电路组成。
2) four fold-frequency subdivision
4倍频细分
1.
Three functions are described: four fold-frequency subdivision,direction-judgment and counting.
描述了该信号处理方法的3个功能:4倍频细分、辨向及计数。
3) 4-times-IF sampling
4倍中频采样
4) frequency doubling
倍频
1.
Influence of refraction on phase matching in frequency doubling;
晶体倍频中光波折射对相位匹配的影响
2.
Continuous-wave frequency doubling of a tunable CO_2 laser in AgGaSe_2;
连续波可调谐CO_2激光在AgGaSe_2中倍频研究
3.
High power end-pumped intracavity frequency doubling Watt-level green laser;
高功率端面泵浦腔内倍频瓦级绿光激光器
5) second harmonic generation
倍频
1.
The phase matching characteristics of the second harmonic generation in biaxial crystals with CW frequency turning;
常用双轴晶体连续调谐倍频时的相位匹配特性
2.
According to the theory of quasi\|phase\|matching (QPM), the periodical domain structure in gadolinium molybdate crystal for QPM second harmonic generation is designed.
根据准相位匹配原理 ,对钼酸钆晶体用于准相位匹配倍频过程的周期性畴结构进行了设计 ,当入射基频光为 1 。
3.
A novel method of optical voltage sensing based on second harmonic generation in periodically poled LiNbO 3 (PPLN)is proposed.
从光学电压传感器的原理出发 ,在周期性极化铌酸锂 (PPLN)晶体倍频 (SHG)效应基础上 ,提出了一种新的光学电压传感方法 ,讨论了周期性极化铌酸锂不同长度、不同占空比对该电压传感性能的影响 ,并给出了图示。
6) Double frequency
倍频
1.
An approach to the Moire fringe with double frequency grating;
倍频光栅的莫尔条纹研究
2.
.The study of electric circuit of double frequency/scanning line by line in DPTV;
数字化彩电倍频/逐行扫描电路的理论研究
3.
LD-pumped Nd∶YAG/KTP intra-cavity double frequency 16W CW green laser;
LD抽运Nd∶YAG/KTP腔内倍频16W连续波绿光激光器
补充资料：2-甲氧基-5-吡啶硼酸频哪醇酯
分子式：C12H18BNO3
分子量：235.09
CAS号：445264-61-9
性质：熔点47-51°C。
分子量：235.09
CAS号：445264-61-9
性质：熔点47-51°C。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条