| 1. | They range from the high amplitude , low frequency delta to the low amplitude , high frequency beta 范围为高振幅,低频率(德耳塔)到低振幅,高频率(贝它) 。 |
| 2. | Pwm converter has low efficiency at light loads and high amplitude harmonic . on the other hand , the control circuit and filter for pfm are much complex Pwm调制模式的spic在轻载下效率较低,控制脉冲谐波峰值较大; pfm控制电路较为复杂,后续滤波器设计困难。 |
| 3. | High amplitude trigger pulse meets the power requirements of many thyristors connected in parallels . the voltage peak emerged in switching off inductance circuit is amortized by resistor and capacitor absorbed circuit 选取r = 54 , c = 0 . 22 f的阻容缓冲吸收电路有效降低了快速晶闸管关断感性负载产生的过电压。 |
| 4. | Vacuum switchgear tubes , gas spark gaps and pseudospark tubes are all switches of gas discharge theory , and have the good qualities of high withstanding voltage , high amplitude of current and high power 真空开关管、火花开关、伪火花放电管都是利用气体放电理论的开关元件,具有高耐压能力、高峰值电流、功率大等优点。 |
| 5. | The results of orientation response in the resonant cavity show that it is best to measure alanine film dosimeter in horizontal orientation paralleling to the magnetic field , which can obtain the highest amplitude and the smallest uncertainty 通过剂量计在共振腔内的方向效应实验,发现平行于磁力线方向测量最佳,可得到最大的信号强度和最小的测量不确定度。 |
| 6. | After the section of right side nxiits in budgerigar in the original sound wave ' s expanded time window , the higher amplitude pulse and the lower amplitude pulse exchanged alternately and also the higher amplitude is approximately as twice as the lower amplitude 虎皮鹦鹉在断右侧nxllts后,原始时间波形展开图中出现了各脉冲振幅一高一低相间的交替更换,且高振幅脉冲的振幅约为低振幅脉冲的两倍。 |
| 7. | This paper introduces some practicable way of eta , presents the principle of each method and compares their virtues and shortcomings . among them , the vca ( voltage controlled amplify ) becomes prominent for its good characteristics , such as wide output dynamic range , low nonlinear distortion , flat amplitude - frequency characteristics , high amplitude resolution 对衰减器的总体方案和实现方法作了全面的分析、并着重分析了电路设计和研制中的各个关键问题,如动态范围,幅频特性,相位特性,非线性失真等。 |