Amplitude Modulation

The impact of voltage,number of piezoelectric and damp on scalpel vibration amplitude is analyzed.

给出了有限元法求解压电耦合振动的原理,利用有限元软件ANSYS对手柄振动系统进行了模态分析和谐响应分析,得到了精确的纵振动振型以及刀头的振幅、系统振幅放大系数等结果。

This paper introdueed the models of calculation oil layer stiffness and the models of oil layer stiffness affects on vibration amplitude.

导出计算油膜刚度公式和油膜刚度变化影响振幅公式,利用这些公式可以分析影响振动幅值的各种原因。

The features and procedures of the method offered are as follow:cancelling angle measurement system, driving the balance blocks on the upper and lower correction planes by stepper motors, setting up trial unbalance vectors on the two measuring planes respectively, measuring the vibration amplitudes .

提出了惯导用精密离心机动平衡系统的独立调节法 :不需要测角系统 ,由步进电机驱动上下两个校正面上的平衡块 ,分别在上下两个测试面上设置一个已知的不平衡矢量 ,使用上下两个测试面上的电容测微仪 ,分别测得每个测试面上设置不平衡矢量前后的振幅 ,利用两点测算法或四点测算法获得上下两个测试面上原有的不平衡矢量 ,由步进电机驱动上下两个校正面上的平衡机构消除不平

Non-sinusoidal oscillation amplitude for continuous casting mold with high casting speed;

高拉速连铸结晶器的非正弦振动振幅

Determination of Non-Sinusoidal Oscillation Amplitude for Casting Mold;

连铸结晶器非正弦振动振幅的确定

Electromagnetic analysis of high amplitude electromagnetic vibration machinery;

大振幅电磁振动机械的电磁分析

The initial phases of periodic error not only depend on the testing methods and precisions of the instruments,but also depend on the swing parameters of itself.

光波测距仪检验工作中的周期误差是三项主要的系统误差之一,周期误差中初相角的精度不仅与测试方法和仪器精度有关,而且与周期误差自身的参数振幅有关,因而使仪器的初相角不宜测准。

The oscillation frequency is controlled by means of adjusting variabledisplacement hydraulic motors, the oscillation swing is controlled by changing eccentricity distance without causing any deleterious horizontal vibration.

作者根据现有钴结壳开采方法,提出了激振破碎开采法,并研究了相关机电技术:通过调节激振频率及振幅以适应厚度差距较大的钴结壳分布状况;激振作业不需反力以适应高低不平、悬崖遍布的海底地形;通过比例电液减压阀来改变液控变量马达的排量以改变激振频率;通过结合比例电液减压阀、密封氮气压力位移转换器和机液伺服阀以实现对独立回转的2个偏心体进行等偏心距控制,以消除侧向振动。

In this paper, by establishing and carrying out the nonlinear differentialequation of LC self-oscillator, the transitional process of oscillation is discussed in detail, and the amplitude of vibration formula in equilibrium state is given.

本文通过建立、求解LC自激振荡器非线性微分方程,详细地讨论了振荡器的振荡过渡过程,并给出了稳态时的振幅公式。

Vibrating force and amplitude of vibration to drive piles to the required depth are the key parameters for selection of vibratory piling hammers.

将桩下沉至要求深度的振动力和振幅,是选择振动锤型号的关键参数,但由于我国目前尚无同类的设计、施工规范,计算理论依据又不完备,所以在选择振动锤型号时,振动力和振幅的估算较难。

No statistically significant difference was found in the latencies and amplitudes between the left and right eyes, but the amplitudes of females were slightly higher.

左右眼ＰＶＥＰ的有关参数值无显著区别；女性儿童ＰＶＥＰ的振幅略高于男性，潜伏期略短于男性。