Hz

The frequency of the system is 2 Hz .

隔振台是弹簧悬挂式的，自振频率为2赫芝。

The optimal frequency value of the area fluctuation is about 0.1-0.3 Hz .

面脉动最优频率值一般在0.1&0.3赫范围内。

In Europe , AC is usually generated at 50 Hz .

欧洲的交流电输出频率通常为50赫兹。

Vibrations in the spacecraft below 10 Hz can damage the internal organs , and even threaten a person 's life , Yang explained .

杨利伟解释道，10赫兹以下的低频振动会引起人的内脏共振，甚至会危及一个人的生命。

With the 20 Hz control frequency , the algorithm gives good performance .

实验表明：在20Hz的控制频率下，该控制算法在JUTIV-型智能车上表现出很好的效果。

Atmospheric Pressure Glow Discharge Using 50 Hz Power Frequency Voltage

用50Hz工频电压产生大气压下辉光放电

50 Hz power frequency interference is the main noise of ECG signal .

50Hz的工频干扰是心电信号的主要干扰源，尤其在供电系统不稳定、外界环境适应性差时严重影响心电信号正确判断。

18 J , 20 Hz Solid State Heat Capacity Laser

18J，20Hz固体热容激光器

Application of Trap Filter of 50 Hz in Brainwave Data Acquisition System

50Hz陷波器在脑电数据采集系统中的应用

Hence , the working frequency of them is 50 Hz .

于是，它们的工作频率是50Hz。

Development of 25 Hz Inverter Based on DSP

基于DSP的25Hz逆变电源的研制

Development of a high accuracy stator ground fault protection by injecting 20 Hz voltage

高准确度外加20Hz电源定子单相接地保护的研制

50 Hz interference is filtered by using digital notch filter .

利用数字滤波器实现了50Hz干扰信号的实时滤波。

Emulation of the 400 ? Hz UPS based on multiple repetitive control

400Hz中频UPS逆变复合重复控制的仿真研究

Comparison of Effects of 5 and 20 Hz Magnetic Field on Cerebral Ischemia in Rats

5Hz和20Hz磁场刺激对大鼠脑缺血影响的比较研究

200-300 Hz reduced 68.9 % ( p < 0 . 01 );

200－300Hz频段的相对能量降低了68.9%（P＜0.01）；

The frequency range from 20 Hz to 50 Hz is suitable .

适宜的频率范围为20～50Hz。

A digital filter method for the elimination of 50 Hz interference from the ECG

一种消除ECG信号中50Hz工频干扰的数字滤波方法

The generator can work at 300 Hz continuously .

在300Hz条件下可连续运行。

Objective To investigate the clinical features of herpes zoster ( HZ ) .

目的进一步了解带状疱疹的临床发病特点及相关因素。

Our analysis indicates that the magnetic activities cause shifts of up to 0.3 μ Hz .

我们的计算表明太阳磁活动导致的频率变化可达0.3μΗz。

However , the exciting frequency of 1 000 Hz worsens compressor performance .

当尾流撞击频率为1000Hz时压气机性能有所恶化。

Technical Preparations for the Construction of HZ 21-1 Jacket

惠州21-1导管架建造技术准备

The influence of low frequency noise within 16 to 31.5 Hz has been surveyed and measured .

本文对16&31.5Hz范围的低频噪声对居民的干扰作了调查，对噪声源进行了测试和分析。

The measuring speed can be from 40 Hz to 25 kHz .

实际测量速度为40Hz～25kHz。

A MEMS-optical current sensor detecting 50 Hz alternating current was introduced .

提出了一种检测50Hz交流电的微机电光学电流传感器。

Objective To find a new method for repressing the 50 Hz power line interference in ECG signals .

目的探讨一种用于抑制心电信号中50Hz工频干扰的新方法。

There were no significant changes for reactance at 10 ~ 35 Hz .

但10～35Hz电抗无明显改变。

Problems in Measuring 30 Hz ~ 300 Hz AC Voltage with Dividers

用分压器测量30～300Hz交流电压时的问题

The output energy of 100 mJ is obtained at the 30 Hz repetition rate .

在30Hz重复率下工作时，每脉冲输出能量达到100mJ。