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低失真度
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  low distortion
     In this paper, the design method of a Ultra-low-frequency and low distortion amplifier is presented. using OPA512 and integrating feedback control circuit.
     介绍了一种低频低失真度功率放大器的设计方法 ,它以OPA5 12集成运放为核心 ,并集成反馈控制电路
短句来源
     A 20 W audio power amplifier has been developed, which, having very low distortion and high quality performance for audio applications, is capable of delivering 20 W of output to a 4 Ω or 8 Ω load at ±25 V power supplies. The amplifier is designed to operate with a minimum of external components.
     介绍了一种20W音频功率放大器专用电路的工作原理及其电路与版图设计。 该电路在音频放大应用中具有低失真度的高性能,能够在电源电压±25V的条件下为4Ω或8Ω的负载提供20W的功率输出。
短句来源
     The design takes advantage of advanced circuit techniques and process technology to achieve extremely low distortion levels even at high output power. The circuit also features high gain, high slew rate, broad bandwidth, large output voltage swing, high current, and a very wide supply range.
     该电路设计采用了先进的线路结构,保证了大功率输出时的低失真度,同时具有高增益、高速、宽带、大输出摆幅、大输出电流和大电源电压范围等特点。
短句来源
  “低失真度”译为未确定词的双语例句
     The digital low-frequency signal synthesizer bases on the DDS and adopts to the idea of MCU+DDS , provided with high-precision(0.01Hz) , high- discriminability(<0.01Hz) ,low-distortion(THD<0.4%).
     数字低频信号源模块基于直接数字频率合成技术(DDS),采用了 MCU+DDS 软件算法的思想,具有高精度(0.01Hz)、高分辨率(<0.01Hz),低失真度(THD<0.4%)等特点;
短句来源
     Design of the Power Amplifier for Ultra-low-frequency Vibrator Calibration System
     用于超低频振动校准系统的低失真度功率放大器的设计
短句来源
     Super-low Distortion Measurement System
     超低失真度测试系统
短句来源
     However, all these methods require the power source to be low distorted sinusoidal periodic wave, which restrict the expansion of measurement range and the improvement of accuracy because it’s difficult to gain low distorted sinusoidal signal.
     然而现有的数字化阻抗测量方法都要求激励信号是低失真度的正弦波信号,而频率较高的低失真度正弦信号很难获得,这限制了测量精度的提高和测量范围的扩大。
短句来源
     The limit of this method is that the sine wave generator with high performance is necessary,especially the stability,the noise and distortion of generator.
     其局限性则是对交流信号源要求较高 ,要求高稳定性、低噪声及低失真度 ;
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  相似匹配句对
     Super-low Distortion Measurement System
     超真度测试系统
短句来源
     A low shape distortion algorithm for VSnakes
     一种形状真度的VSnakes算法
短句来源
     A low shape distortion algorithm for VSnakes was presented.
     提出了一种形状真度的VSnakes算法。
短句来源
     Weighted Distortion and Its Measurement
     计权真度和它的测量
短句来源
     Design of the Power Amplifier for Ultra-low-frequency Vibrator Calibration System
     用于超频振动校准系统的真度功率放大器的设计
短句来源
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  low distortion
One specifically examines the possibility that the pulse leaving the medium may be nearly identical to the incident one (low distortion) and in significant advance of it (strongly negative group-delays).
      
Like planar parameterization, spherical parameterization without foldover and with low distortion consitutes two basic challenges.
      
Experimental results show that the proposed technique is efficient and secure, has high capacity and low distortion, and is robust against affine transformations.
      
This technique has high capacity and low distortion, and it is robust against affine transformations.
      
The Alpe Sponda samples (Na2O: 1.1-1.5 wt.%, BeO: 0.6-0.8 wt.%), which occur in paragonite mica schists, reveal low optic angles (2Vx: 45°-55°) and low distortion indices (Δ: 0.139-0.172).
      
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A novel SPWM control circuit for an inverter power supply is proposed in the paper. It has quite good characteristics and is quite simple, reliable and versatible. The concept of "alternative instantaneous negative feedback" is introduced in the circuit, so the system has a lower total distortion of the output of the inverter.

研究了一种用于电源的新型SPWM控制电路,它具有电路结构简单、性能优良、可靠性高,能实现不同的PWM调制策略以及较大的通用性等.由于电路中引入了“交流瞬时值负反馈”的概念,使电路逆变电源输出波形具有较低的失真度.

An intelligent signsl generator is introduced inthis paper.This generator,which can genetate two channelslow-distortion and very low-frequency sine-wave.squarewave, etc.,is realiZed with microcomputer. The phase between the channels can be adjusted. The generator can beused as a standard signal source.

介绍了一种智能信号发生器,它以单片机为核心,能产生两路超低频、低失真度的正弦波、方波等;两路信号的相位差可调,该信号发生器为PC插卡的形式。可作为基准信号源使用。

The stability of Data Acquisition System(DAS) is one of its basic characteristics.Normally,the stability of DAS by using the gain drift and the zero drift along time is described.One method acquiring the performance of gain and zero drift of DAS is introduced.First of all, loading a sine wave to DAS,and then getting stability of DAS by using sine wave curve fit.This is also a precise modeling measurement method.Compared with the DC exciting and direct reading method,the identification of this method can be...

The stability of Data Acquisition System(DAS) is one of its basic characteristics.Normally,the stability of DAS by using the gain drift and the zero drift along time is described.One method acquiring the performance of gain and zero drift of DAS is introduced.First of all, loading a sine wave to DAS,and then getting stability of DAS by using sine wave curve fit.This is also a precise modeling measurement method.Compared with the DC exciting and direct reading method,the identification of this method can be much smaller than the digitized error.The limit of this method is that the sine wave generator with high performance is necessary,especially the stability,the noise and distortion of generator.Otherwise,the stability evaluation results may be the characteristics of generator.

数据采集系统的短期稳定性 ,为其基本测量误差因素之一 ,通常以零点漂移和增益漂移两项参数给出。本文介绍一种方法 ,通过正弦信号激励 ,运用正弦波拟合获得其零点漂移和增益漂移特性参数。这是一种模型化精确测量方法 ,与以往的直流激励读取法相比 ,评价结果的分辨力和不确定度可以远小于量化误差。其局限性则是对交流信号源要求较高 ,要求高稳定性、低噪声及低失真度 ;否则 ,所获得的稳定性将是信号源的稳定性。

 
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