正弦波形 meaning in English
sine wave form
sinusoidal wave form
sinusoidal waveform
Examples
- Error evaluation formula of measuring harmonic distortional sine wave ' s amplitude with laser interferometer
激光干涉仪测量失真正弦波形位移误差估计式 - With the conduction property of the triggered thyristor and the intellective numerical controlled frequency reduction of the triggering pulse by mpu , we can divide alternating current into several complete sinusoidal waves to supply some loads . it can be made as a controller or a pcb ware , which is suitable for the air conditioning , machine tool and various instruments that require electric power or rotate speed adjustment
利用晶闸管的触发导通特性，用单片机对触发信号进行智能数字降频，可在交流电中切分出部分完整的正弦波形供负载使用，可以单独做成一台控制仪器或者作为一个控制电路板用于需要电功率和转速调节的空调、机床以及各类仪器设备中。 - These topologies of inverters are composed of two bi - boost dc / dc converters , they are symmetry . so whole circuit turn into four - quadrant converters , we can control every power mosfet on or off . then we can get sine wave with direct current polarization at the left , at the same we also can get sine wave with direct current polarization phase contrast 180 compared of the left at the right
这类逆变器由左右二个双向boostdc / dc变换器构成,左右二边是对称的,所以整个电路构成了一个四象限变换器,我们可以恰当控制各功率管的开、关,使左边的两象限dc / dc变换器输出一个带直流偏置的正弦波,使右边的两象限dc / dc变换器输出一个相差180度带同样直流偏置的正弦波形,这样,负载zl上的电压是左、右两个dc / dc变换器电压的差动输出,正好可以消掉直流偏置,最终在负载r1上得到的就是正弦波。