英语释义

1. a waveform that varies periodically and abruptly from one to the other of two uniform values

片语

unsymmetrical square-wave不对称方波

square-wave drive方波驱动

square-wave transformer方波变压器

Square-wave demodulation方波检波

square-wave response方波响应

square-wave winding方波绕组

PWM square-wavePWM方波

square-wave injection方波注入

square-wave target方波靶

英汉例句

• detecting back emf is one of the most important methods for the detection of rotor position in square wave current drive bldcm sensorless control.

  方波电流驱动的bldc电机无位置传感器控制检测转子位置的最重要方法是反电动势检测法。

• on this basis, realizing low delay square wave signal output by switching two different amplitude dc signals with spdt;

  在此基础上，通过采用单刀双掷电子开关切换两路幅值不同的直流量实现低时延方波信号输出；

• it can provide complete square wave in the transformer, which can provide a simple self-driving method for synchronous rectifier.

  同时变压器上是完整的方波，可以给同步整流提供简单有效的自驱动方案。

• quality square wave power supply, current zero crossing time is short , arc stability , arc without high frequency stability.

  优质方波电源，电流过零时间短，电弧稳定，无需高频稳弧。

• the square wave operating tests are initially discussed too.

  对方波运行试验也进行了初步的探讨。

• the method uses a square wave input and the stability of the system to extract the internal relation between the output sampling signals and the structural parameters.

  该方法利用方波输入和系统稳定性，离析出输出采样信号与结构参数的内在联系，推导出确定连续系统结构参数的算法。

• the paper presents a square wave modulation scheme based on tdma signal system to resolve the problem. also it can avoid the high speed system clock.

  该文提出了一种基于tdma信号体制下的方波调制方案，该方案既解决了远近效应，又避免了在较高的中频上采用过高的系统时钟。

• square wave stripping voltammetry(swasv) was a high sensitivity electrochemical methods to detect the trace metal ions.

  方波溶出伏安法（swasv）是测定痕量金属离子的一种高灵敏度的电化学方法。

• also simulation results of sine wave, square wave and random simulation reappearance show that the fuzzy pid controller is higher accuracy and better dynamic performance than conventional pid control.

  并对正弦波、方波以及随机波进行仿真再现，仿真结果表明，该模糊pid控制器比常规pid控制器具有更高的控制精度和更好的动态性能。

• the main circuit output ac square wave by adopting the technology of ac-dc-ac variable frequency and phase shift pwm.

  其中，主电路采用交-直-交变频技术，输出交流方波电压；

• multi-function ac/dc square wave welding power source can be used as stick, dc tig, pulsed dc tig, ac square wave, pulsed ac square wave.

  多功能交流方波电源是一种具有手弧焊、直流tig、脉沖直流tig、交流方波、脉沖交流方波功能的焊接电源。

• the experimental study for the two forms of high-voltage amplifiers shows that the efficiency of square wave modulated high-voltage amplifier increases more than 80%.

  对高压放大器进行实验研究的结果表明，方波高压放大器比正弦波高压放大器出力系数增加80%以上。

• methods: the circuit consists of a direct current electrical source, an unsymmetrical square wave oscillators in which duty-cycle and frequency was adjustable and a constant current source.

  方法：由直流供电电源、占空比和频率可调的输出正负矩形波振蕩器及恒流源组成电路。

• describes a technique for the surface treatment of aluminum alloy with a dc square wave pulsesed power supply. the physicochemical property and the microstructure of the oxidized film is studied.

  报导了以直流迭加脉沖方波的电源对铝合金作表面处理的技术，并对膜层的物理化学特性及其微观结构作了研究。