2) second harmonic
二次谐波
1.
Ultrasonic nondestructive evaluation on bond quality of SRM interface based on second harmonic technique;
基于二次谐波技术的固体火箭发动机界面粘接质量的超声无损评价
2.
Theoretical and experimental research on the second harmonic of focused ultrasound in layered biological media;
聚焦超声波在层状生物媒质中的二次谐波声场的理论与实验研究
3.
Idler second harmonic generation in femtosecond BBO optical parametric amplification;
飞秒BBO光参量放大中闲频光二次谐波的产生
3) first harmonic
一次谐波
1.
To compensate of the nonlinearity error of heterodyne interferometers in nanometer measurement,a method for reducing the first harmonic nonlinearity is proposed.
为了补偿激光外差干涉纳米测量中的非线性误差,提出了一种减小非线性误差的一次谐波方法。
2.
If the frequency of a laser is modulated sinusoidally, the first harmonic component of saturated absorption signal can be used as error signal to stabilize the frequency of the laser.
对激光器进行频率调制,检测原子分子饱和吸收信号中的一次谐波成分得到频率误差信号,反馈控制可以实现激光频率的稳定。
4) higher harmonic
高次谐波
1.
Approach on Higher Harmonic Pollution and Harmonic Regulation in Power Supply System of Sugar Mills;
糖厂供电系统中的高次谐波污染及治理措施探讨
2.
The harm and restricting method of higher harmonic in power system;
电力系统中高次谐波的危害及其限制方法
3.
The theoretical analysis is made on the reasons why the aggrandizement of motor noise is caused by higher harmonic in the output of frequency converter, and why fan noise is induced by the resonance of carrier wave frequency and fan, and the solution scheme is put forward.
对由变频器输出中的高次谐波造成电动机运转噪声增大及载波频率与风机共振造成风机噪声的原因进行了理论分析,提出了解决方案。
5) fifth harmonic
5次谐波
1.
On the basis of the characteristics of zero-sequence voltage and current at backward faulted branch,forward faulted branch and normal branch,this article analyses the fifth harmonic s amplitude and phase relation between the electric field and the magnetic field at the above-mentioned three kinds of branches.
该文根据故障点前向支路、故障点后向支路以及非故障支路的零序电压、零序电流的特点 ,分析了分布于这 3类支路周围的电场和磁场 5次谐波的幅值关系和相位关系。
6) third harmonic generation
三次谐波
1.
Study on the third harmonic generation induced by the second-order cascading in nonlinear photonic crystal;
光子晶体中二阶非线性过程产生三次谐波的研究
2.
4) were grown by Czochralski method and their critical phase matching angles of third harmonic generation (THG) of Nd∶YAG laser (1064 nm) were measured.
通过研究生长不同Gd离子和Y离子配比组份的GdxY1 -xCa4 O(BO3) 3晶体 ,得到了室温下可以实现非临界相位匹配产生 10 64nm三次谐波的新型非线性光学晶体Gd0 。
3.
The dual-tripler scheme for third harmonic generation(THG) is studied by the coupled equations under the small signal and high power condition((1.
5 GW/cm2)条件下研究了晶体串接三次谐波(THG)转换方案,并利用实验验证了该方案。
补充资料：二次谐波交流极谱法
分子式：
CAS号：
性质：由于法拉第电流的非线性性质，它含有基波频率外，还有频率为基波频率，n次倍的n次谐波电流；而充电电流则为线性的，只有基波频率电流。如果只测量通过电解池的高次谐波电流，则可消除充电电流成分，提高法拉第电流对充电电流之比，即信噪比二次谐波交流极谱法测量的是通过电解池的二倍于基波频率的电流。这时充电电流已消除，因而提高了测定的灵敏度。
CAS号：
性质：由于法拉第电流的非线性性质，它含有基波频率外，还有频率为基波频率，n次倍的n次谐波电流；而充电电流则为线性的，只有基波频率电流。如果只测量通过电解池的高次谐波电流，则可消除充电电流成分，提高法拉第电流对充电电流之比，即信噪比二次谐波交流极谱法测量的是通过电解池的二倍于基波频率的电流。这时充电电流已消除，因而提高了测定的灵敏度。
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