片语

frequency band conversion频带转换

frequency voltage conversion频率电压变换

frequency up conversion频率上转换过程

frequency-conversion c频率变换电路

two frequency up conversion双频上转换

frequency-conversion crystal变频晶体

frequency alias conversion effect频率变换效应

high frequency power conversion高频变换

frequency-conversion circuit频率变换电路

英汉例句

• this paper presents a new type of low noise frequency conversion circuit based on the research of phase noise conception, generation as well as relativity measurement method.

  本文在对相位噪声的概念、产生及其相关测量方法研究的基础上，设计出一种低噪声频率变换电路。

• the optical characteristics of nonlinear optical crystals, especially several common mid-ir nonlinear crystals have been introduced in the research of nonlinear frequency conversion crystals.

  在对非线性变频晶体的研究中，首先介绍了非线性光学晶体的光学特性，详细介绍了几种常用的中红外非线性晶体。

• result showed frequency conversion system application development prospects are very good and significant economic benefits.

  结果表明变频调速系统具有很好的应用发展前景和可观的经济效益。

• standard configuration is sidle frequency conversion motor drive & dec optional configuration is servo motor drive.

  标準配置横行变频马达驱动，可选购横行伺服马达驱动。

• adopt igbt frequency conversion of german siemens and voltage feedback series resonance circuit. the conversion efficiency is reaching up to above 97.5%.

  采用德国西门子igbt变频，电压反馈串联谐振电路。变换效率高达97.5%以上。

• this paper introduces a design of data acquisition ways based on voltage to frequency conversion in accelerometer system.

  介绍了一种以压频转换为原理实现加速度计系统中数据采集的方法。

• in nonlinear optical frequency conversion process, it is desirable to maximize the product of the intensity of pump laser and the interaction length in order to achieve maximum conversion efficiency.

  在光的非线性传播过程中，增加泵浦光的强度及光和物质的互作用长度是获得较高的频率转换效率的主要途径。

• uv laser based on dpls and nonlinear optical frequency conversion technology is one of the most active areas in laser technology innovations.

  全固态激光器技术结合非线性光学频率变换技术是目前最有前途的紫外光源获得方案。

• frequency conversion and stepless speed regulation, thus ensuring steady speed and facilitating speed regulation.

  采用变频无级调速、转速稳定、调速方便。

• ipm that has been widely used in the field of frequency conversion is one of the power integrate circuit.

  变频产品中普遍使用的智能功率模块ipm是电力集成电路的一种。

• now commonly used servo motor is ac servo motor, the axial end in motor with photoelectric encoder, by examining the rotor angle to frequency conversion control.

  目前常用的伺服电机是交流伺服电机，在电机的轴端装有光电编码器，通过检测转子角度用以变频控制。

• frequency conversion technology based on vector control theory, design of steel industry processing lines of induction motor driving program.

  基于变频调速技术和矢量控制原理，设计钢铁行业处理线的交流异步马达的传动方案。

• one of the most effective and feasible ways of broadening the range of the output wavelength is using frequency conversion of non-linear crystal under the condition of phase matching.

  拓宽激光输出波长的范围最常用最有效的方法之一是利用非线性晶体在相位匹配条件下的频率变换技术。

• uses frequency conversion control system, can real time monitoring gas supply lines gas pressure, make the gas supply pipe gas pressure constant, improve the production efficiency and product quality.

  采用变频控制系统后，可以实时监测供气管路中气体的压力，使供气管路中的气体的压力保持恒定，提高生产效率和产品质量；

• this paper describes hardware design and asic implementation of an intelligent interface for a 4 channel parallel voltage to frequency conversion (vfc) system.

  本文描述一个4通道平行压频转换系统智能接口的硬件设计及其专用集成电路的实现。

• frequency conversion is an effective energy-saving approach for a pump system.

  变频调节是泵系统节能的一种有效手段。

• apply frequency conversion technique to save energy, improve the shift peak load capacity of electric network for the units and ensure the safe and stability operation of network.

  利用变频调速技术节约电力，提高电网对机组的调峰能力，保证电网的安全稳定运行。

• in this paper, nonlinear frequency conversion of second harmonic and third harmonic of femtosecond ti:sapphire laser is theoretically and experimentally studied.

  从理论和实验上分别研究了飞秒掺钛蓝宝石激光二倍频和三倍频的非线性频率转换过程。

• using digital signal processor (dsp), tms320f240, which is special for motor control, we develop one frequency conversion adjustable-speed system which based on foc principle.

  本文依据矢量控制的原理，以电机控制专用dsp芯片tms320f240为核心，设计、开发了一套基于dsp的矢量控制变频调速系统。

• dds (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies , programmability and so on.

  直接数字频率合成（dds）技术是目前广为应用的一项频率合成技术，它具有频率转换时间短、频率分辨率高、可编程等特点。

• therefore, the reciprocating compressors system frequency conversion technology reform still have meaning.

  因此，对往复式压缩机系统进行变频技术改造还是比较有意义。