Minimization study on maximum residual amplitude of flexible rotors when balance 挠性转子动平衡时最大残余振动的极小化研究
The phase and amplitude balance condition for colpitts oscillator circuit are analyzed and deduced from the concept of "negative resistance", which has been used to design the practical oscillator circuit. 由负阻概念分析推导出科尔匹兹石英晶体振荡电路的相位平衡条件和振幅平衡条件,并设计具体振荡电路;
The amplitude and phase balance of the unit mixer is controlled strictly through designing. 通过设计控制单元混频器幅度和相位平衡,在固定低中频下,实现了宽带镜频抑制。
Isolation of Hybrid Coupler and Resistance of pin Diodes Effect on Amplitude Balance in Reflection-Type Phase Shifters 电桥隔离度和pin管实部对反射式移相器幅度平衡的影响
By using this method combined with automatic amplitude balance approach, the accuracy of the phase measurement has been improved significantly. 为了提高相干精度,还采取了参考信号通道和待测信号通道幅度自动平衡的措施。这一新方法结合改进措施,使测相精度明显提高。
The algorithm of the designed digital linear phase bandpass filter and DFT demodulation are successfully applied to the unbalanced amplitude and phase demodulation of the textile cup and carding roller dynamic balance machine. 设计了数字线性相位带通滤波及DFT解调算法,并成功地将其应用于纺杯分梳辊动平衡机不平衡量幅度及相位解调中。
The Design of a Kind of Intelligent Measurement-meter Applied in Amplitude Modulation Modulus Adjustment and Repair of Photoelectric Analytical Balance 一种智能型调幅度测量仪的设计电光分析天平计量性能的判断和调修
Under the small amplitude condition, the system becomes weak nonlinear system, it can be solved by harmonic balance method, the result show that the frequency is in respect to the amplitude of vibration and the value of prepressing. 在小振幅条件下,系统是弱非线性,可以利用谐波平衡法对系统进行定量分析,得出了系统频率与振幅、预紧量的关系。
Detailedly studies the principle of unbalance measure, the relationship between amplitude, phase and unbalance, fixed coordinate component, balance precision and the demands for remaining unbalance. 详细研究了动平衡机不平衡量的测量原理,包括不平衡量与振幅、相位的关系,平面分离的解算标定方法,以及平衡精度,对剩余不平衡量的要求等。
Based on the comparative study to the amplitude weighted and phase weighted time sequence phase measurement methods, the hybrid method is proposed. With the combination of automatic amplitude balance approach, in this method, the accuracy of the phase measurement has been improved significantly. 对时序测相方法的测相精度进行了改进研究,提出了混合方法修正和幅度自动平衡等改进方法。