Application technology of sensor in ultra-low frequency active vibration isolation system

超 低频主动隔振系统的传感器应用技术

At last the paper give a summary about the development of servo sensor and some views about the development of low and ultra-low frequency vibration measurement are also put forward .

最后，第五章对伺服式传感器的发展进行了总结，并对低频和 超 低频振动测量的发展提出了展望。

The display and record of ultra-low frequency signal by computer

用计算机显示和记录 超 低频信号

Finally Low-frequency feedback system is built up which solves the problem of high distortion of the output of vibrator under ultra-low frequency .

最后设计出低频反馈系统，解决了振动台 超 低频失真度较大的问题。

The active servo technology is used to improve the low-frequency characteristic of the small vibration table to meet the requirements of ultra-low frequency sensors calibration .

振动台采用了闭环伺服技术，降低了低频段的失真度，拓宽了小型电动式振动台的低频使用范围，在小型振动台上实现了 低频 振动传感器的标定。

Selection of vibration parameters and instruments in the ultra-low frequency measurement

超 低频 振动测量中振动参量及仪器的选择

8802 ultra-low frequency phase standard generator

8802 超 低频标准相位产生器

Simulation results show that if the ultra-low frequency perturbations of grid side close to or with the same resonant frequency it will cause the resonance of boiler steam turbine output power and the oscillation of the power is amplitude magnified .

仿真表明，若电网侧的 超 低频扰动与共振频率相同或接近，将引起锅炉汽轮机组输出功率的共振，功率的振荡幅值被放大。

The results on the study of ultra-low frequency isolator are summarized .

论述了国内外各种 超 低频隔振系统的研究状况。

Study on Euler column spring used in ultra-low frequency vertical vibration isolation system

欧拉压杆在 超 低频垂直隔振系统中的应用研究

Study on technology of fiber optic sensor for absolute vibration with ultra-low frequency

超 低频绝对振动的光纤传感技术研究

Development of Analogue Signal Generator of Ultra-low Frequency

模拟式 超 低频信号发生器的研制

Ultra-low Frequency Rectangle Wave Signal Generator with High Stability Based on TCXO

基于温补晶振的高稳定度 超 低频矩形波发生器

The Research on Mechanism of Ultra-low Frequency Vibration Sensor Mechanism Based on DVD Pickup

基于DVD光读取头的 超 低频振动传感器机理的研究

A fiber-optic velocity sensor which can be used for absolute vibration with ultra-low frequency was introduced .

针对目前用于绝对 低频振动测量的传感器在测量 超 低频（ 1Hz 以下）的绝对振动时，其 输出 信号完全被 淹没 的 缺点，提出了一种基于光纤的 超 低频绝对振动速度传感器技术方案。

So the ultra-low frequency absolute vibration detection is a difficult problem in engineering measurement field .

因此 超 低频绝对振动检测一直是工程测试领域的一大难题。

The research shows that the mould oscillation device is the key to achieve efficient accurate and stable production . The ultra-low frequency vibration which produces during working affects directly the quality yield and safety of the continuous casting production .

研究表明结晶器振动装置是连铸设备实现高效率、高精度、稳定工作的关键设备，其工作过程中所产生的 超 低频振动直接影响连铸生产的质量、产量和安全。

In this paper the dynamic characteristics of magnetoelectric vibration velocity transducer are analyzed based on the mechanical model and the method of dynamic characteristics improvement is presented to realize ultra-low frequency vibration measurement by means of the transducer .

以磁电式振动速度传感器的模型为基础，分析了传感器的动态性能，提出了一种利用现有磁电式振动速度传感器实现 超 低频振动测量的动态性能改进的软件补偿方法。

Study of Ultra-Low Frequency Electromagnetic Wave Exploration to Deep Geological Information

航空 甚 低频电磁系统深部地质信息的 超 低频电磁探测研究

Study on Vibration Sensor of Ultra-low Frequency

超 低频振动传感器的研究

At present servo sensor is being used in low and ultra-low frequency vibration measurement .

目前，在低频和 超 低频振动测量中广泛使用的是伺服式振动传感器，其主要应用领域是 土木及 水利 工程的振动测量以及地震观测，此外还有一些其他的领域也在应用这种传感器。

The types principles features and applications of displacement sensor used in ultra-low frequency active vibration isolation control are introduced .

介绍了 超 低频主动隔振控制中常用的位移传感器的类型、工作原理、结构特点及适用范围。

Calculation and Analysis for Electromagnetic Compatibility of Ultra-low Frequency Transmitting System

超 低频发信系统电磁兼容性计算与分析

However when the interferometric fiber-optic sensor works at the low frequency band or ultra-low frequency band the system has been badly influenced by the low frequency system background noise and environment disturbance .

然而随着干涉型光纤传感器工作频段不断向低频、 甚 低频段延伸，传感系统低频本底噪声及环境低频干扰严重影响了系统对低频信号的检测。

The paper introduces the precise measuring circuit of ultra-low frequency voltage based on the characteristics of the measurement of ULF .

根据 超 低频电压信号测量的特点，给出了一种精密测量电路。

This paper introduces the principle and specification of the ultra-low frequency small vibration table .

本文介绍一 种 用于 标定（ 超） 低频 振动 传感器的小型 伺服振动台的原理和性能。

This paper describes a microcontroller-based phase-shiftable ultra-low frequency signal generator .

介绍一种基于微控制器的 超 低频移相信号发生器的工作原理和设计方法。

First technical parameters of dragging device were addressed according to motion characteristics of ultra-low frequency vibration table . Then controlled-motor and motion rail of servo system were chosen according to its parameters .

首先结合 超 低频振动台的运动特性，提出了管线拖曳跟踪装置的技术参数；然后以此为依据选择随动系统的控制电机及运动导轨；最后对本随动系统的控制方案进行了阐述。

Study on Ultra-Low Frequency Parallel Connection Isolator Used for Precision Instruments

精密仪器用 超 低频非线性并联隔振系统研究