英语释义

• the lowest tone of a harmonic series

片语

fundamental wave[物] 基波

first-harmonic resonance基波谐振

first-harmonic detection基波分量检测

first harmonic oscillation基本振蕩

first-harmonic detecting基波检测

first-harmonic measurement method基波测量法

first t harmonic基波

amplitude of first harmonic基波振幅

first harmonic coefficient基波系数

英汉例句

• the calculation is very simple when the effects of only first harmonic are taken into account.

  在只考虑基波的影响时计算量很小。

• in order to solve those problems, this paper presents a signal conditioning method with the averaged value of the first harmonic and proposes an intermitted exciting mode.

  为了解决这些问题，本文提出了基波平均值的信号调理方法和间歇激磁方法，检定结果表明了该种方法的有效性。

• 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。

• it determines if the grounding point is in generator stator winding according to the first harmonic and third harmonic of leaking current to realize 100 % stator grounding protection.

  发电机的中性点接地方式不仅与定子接地保护所采用的形式密切相关 ，而且与单相接地故障电流、定子绕组的绝缘相关。

• the method uses the dc component and the first harmonic of a curve's chain code expressed by fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.

  该方法利用闭合曲线的傅立叶级数表示的直流分量和一次分量实现对闭合曲线的椭圆拟合，可以避免通常椭圆拟合方法中的矩阵求逆问题。

• with the first harmonic and its second harmonic the even order harmonics can be obtained.

  并定性解释了其产生机制和谐波效率提高的原因。

• thus a smaller membrane gives off a higher first harmonic .

  较小的膜发出较高的第一陪音。

• in this paper , a three-phase three-wire active power filter based on a adaptive harmonic detection , by using the first harmonic of the current as the reference control , is presented.

  本文采用了一种自适应谐波检测算法，以基波电流作为控制参考，运用于三相三线制有源电力滤波器中。

• starting off with vortex tube theory, the relationship between the angular rates and the first harmonic inflow is deduced, and then the generalized model of main rotor dynamic inflow is modified.

  本文建立了尾迹弯曲的模型，推导出角速率与一次谐波入流分量之间的关系，据此对旋翼的广义动态入流模型进行了增广和修正；

• 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。

• the first harmonic winding and harmonic winding no-load property curve are gained when field current is change.

  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。

• in this paper, the basic principles, hardware circuit and software design of fast measuring first harmonic reactive power in power system based on 8098 single chip processor are introduced.

  介绍用8098单片机直接交流采样法快速测量电网基波无功功率的基本原理，硬件电路及软件设计。

• it determines if the grounding point is in generator stator winding according to the first harmonic and third harmonic of leaking current to realize 100 % stator grounding protection.

  对发电机转子接地保护、发电机失磁保护、发电机定子接地保护在实际运行中存在的影响机组安全稳定运行问题进行了分析，并提出相应的改进措施。