指出三光子离化过程使三次谐波转换效率降低。
It is shown that the three photon ionization will be a limiting process in third-harmonic generation.
超精细结构分量是采用三次谐波法进行检测的。
The method of the third-derivative signal was used for the detection of the components.
对于三次谐波产生系数得到了与实验一致的结果。
For third harmonic generation our result is in good accordance with the experiment of prestine polyacetylene.
然后分析利用三次谐波电势的上述保护的有关问题。
The problems pertaining to the utilization of third harmonics of the generated EMF for the above mentioned protection are analyzed.
数值分析了三次谐波系统在混沌状态下光场的统计特性。
The numerical results about the photon statistics of the chaotic light field in third-harmonic generation are given.
原理是利用相关分析间接实现差动电流虚拟三次谐波比较 。
This approach uses the relative analysis to achieve the comparison of the Virtual Third Harmonic of differential current.
原理是利用相关分析间接实现差动电流虚拟三次谐波比较 。
The influence factors of low water based on correlation analysis in karst drainage basin;
实验研究发现三次谐波的转换效率在通道范围内基本保持不变。
The conversion efficiency between the fundamental wave and the th emission is roughly constant over the length of the plasma channels.
要改造的发电机是进口的，且容量大，运行时三次谐波电压很小。
The large capacity generator reconstructed is imported and its3rd harmonic voltage is low.
论文的第三章研究了极化子效应对方形量子阱中三次谐波产生的影响。
In the third chapter, polaron effects on the third-harmonic generation in square Wells are investigated.
系统输出激光携带一定负啁啾可以补偿色散，提高三次谐波的转换效率。
The negative chirp introduced by the fundamental wave can compensate partially dispersion and improve conversion efficiency.
作者对在变压器中加三次谐波滤波器和三次谐波电源分别进行了实验研究。
Experimental study with third-harmonic filters as well as with third-harmonic power sources were conducted.
通过改变励磁电流的大小，得到了基波绕组和三次谐波绕组的空载特性曲线。
The first harmonic winding and harmonic winding no-load property curve are gained when field current is change.
发电机的谐波组开路或短路，无三次谐波电压输出，检查绕组接头或拆换绕组。
If no triple overtone voltage, check the winding lug or replace with another winding.
利用量子力学中的密度矩阵算符理论导出了该系统中三次谐波产生的解析表达式。
An analytic representation for the third-harmonic generation along the well is derived by the density matrix operator theory of the quantum mechanics.
本文就电子一声子相互作用对抛物量子阱中三次谐波产生的影响机制作了理论计算。
In this paper, theoretical calculation is performed for the mechanism by which the electron-phonon interaction exerts influence on third-harmonic generation in a parabolic quantum well.
介绍了漫湾电厂发电机3ω定子接地保护原理、调试方法及发电机定子三次谐波电压的测试。
The principle, testing of generator stator ground protection based on the third harmonics, measurement of the third harmonics on generator stator are introduced.
文中认为当在变压器基波磁通中加入某一幅值的三次谐波磁通后，能显著地降低铁耗和励磁电流。
The study shows that the third-harmonic flux with a certain value added to the fundamental flux can obviously reduce both core loss and excitation current.
文中就其工作原理及灵敏度等进行了数学分析，并与三次谐波式的其它方案在理论上进行了比较探讨。
Mathematical analysis is made of its working principle and relaying sensitivity, and comparison with other version is given.
本文对变压器节能提出了一个崭新的观点，即通过三次谐波磁场调制机理来降低变压器的铁耗和励磁电流。
A new method for reducing core loss and excitation current in transformers that utilizes the fundamental principles of third-harmonic flux modulation is proposed in this paper.
由于三次谐波电压在电机负载时将相应增高，因此无须其他任何复杂电压自动调节器即可达到自激恒压性能。
Since triple overtone voltage will increase accordingly when there is load in the generator, it can activate constant voltage on its own without any other voltage automatic governor.
进而提出了基于多回路-有限元耦合数学模型的同步发电机定子单相接地故障三次谐波电压保护方案校验方法。
Furthermore, a checkout method for the third harmonic voltage based protection scheme of stator ground fault in generators is presented based on the verified MLM-FEM coupled model.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中，可以带非对称负载且具有较高的电压利用率。
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
在非线性电阻消谐方式下，正温度系数(PTC)热敏电阻和三次谐波滤波器可以较好地解决零序电压偏高的问题。
Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.
根据弧焊变压器磁滞回线的测试结果，对弧焊变压器的稳态谐波电流进行计算，结果表明弧焊变压器空载谐波电流的主要成分为三次谐波。
Steady state harmonic current is calculated based on the magnetic characteristic curve of welding transformer. The results show that 3rd harmonic component is the main composition.
根据弧焊变压器磁滞回线的测试结果，对弧焊变压器的稳态谐波电流进行计算，结果表明弧焊变压器空载谐波电流的主要成分为三次谐波。
Steady state harmonic current is calculated based on the magnetic characteristic curve of welding transformer. The results show that 3rd harmonic component is the main composition.
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