zero frequency

  • zero frequency
  • 释义

    零位频率

纠错 数据更新时间:2026-04-19 12:50:31
1、

The audiometric zero level has been measured in the frequency range 2-100 Hz, with particular attention to frequencies below 25 Hz. A Direct Determination for Hearing Threshold of Bone Conduction by Using Impedance Head

本文对低频段的听力零级进行了测量,得到了两个不同测试组在2Hz&100Hz频率段的阈值曲线。纯音骨导听力零级的测定

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2、

The bandwidth of non-minimum phase system can't reflect dynamic characteristics. Crossover frequency ω_c is the performance index instead of the bandwidth, and the ω_c must be less than the non-minimum-phase zero a.

非最小相位系统的带宽不能反映系统的动态特性,应该采用穿越频率ωc代替带宽作为性能指标,且ωc应小于非最小相位的零点a。

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3、

Experiments show that droplet transfer keep all to one-peak-zero-base type under controlling by this method as the welding parameter varies, such as peak current, base current and pulse frequency.

它是一种物理状态控制法。试验表明:当峰值电流、基值电流、脉冲频率等焊接参数改变时,本方法均能保持熔滴过渡为1峰0基的过渡。

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4、

The zero point of t 0 value corresponds to top interface of equivalent LVZ after application of the high-frequency components of statics to seismic data;

对地震数据应用静校正高频分量后,t0零点对应于等效低速带的顶界面;

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5、

The high frequency switch technology of large power is developed successfully by the perfect control of PWM ( Pulse Width Modulation) and ZCC ( Zero Current Control), ZVC ( Zero Voltage Control) in the unit.

通过PWM(脉宽调制)和ZCC(零电流控制)、ZVC(零电压控制)的完整控制,成功开发应用了大功率高频开关技术。

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6、

The paper presents a novel ultra-audio frequency ( UAF) induction welding power based on ZCS-PWM ( Zero Current Switching-Pulse Width Modulation) technology.

介绍一种基于ZCS-PWM(零电流开关-脉宽调制)技术的新型超音频感应焊接电源。

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7、

In Fourier transform profilometry ( FTP), zero frequency of the captured patterns influences the measuring range and measuring precision, and even makes the reconstruction of three-dimensional surface incorrect.

在实际傅里叶变换轮廓术测量中,获取条纹图的零频分量对傅里叶变换轮廓术的测量精度和测量范围有很大影响,甚至妨碍三维面形的正确重建。

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8、

Method Continuous wave radar techniques and signal processing techniques including zero intermediate frequency, frequency domain accumulation and adaptive noise cancellation were used in the system.

方法将连续波雷达技术和生物医学信号处理技术相结合,采用了零中频、频域积累及自适应对消技术。

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9、

Since the zero GVM in type-I QPM, we observe cascaded wavelength conversion of ultra-short pulses in frequency domain.

接着,基于I型准位相匹配具有群速度匹配波长的特性,本论文进行了超短脉冲的级联实验,在频域中观察到了转换结果。

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10、

Be aware as well that these transforms centered about the zero-frequency optical axis of the system.

还要记住这些变换式是以系统的光轴(频率为零)为中心的.

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