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测振系统
相关语句
  vibration measuring system
     Hardware Design for Fan Vibration Measuring System
     风机测振系统的硬件设计
短句来源
     The object studied was a DI MultiMode TM SPM. The external vibrating source was a PC speaker driven by a Tektronix ambient waveform generator AWG2021. A SIOS miniature interferometric vibrometer SP S was used as vibration measuring system. The influence of 0~7kHz harmonic vibration of SPM base on the scanning images was studied.
     针对DI扫描探针显微镜MultiModeTM SPM ,以Tektronix任意波形发生器AWG2 0 2 1驱动PC扬声器作为激振源 ,以SIOS微型激光干涉测振仪SP S为测振系统 ,研究了 0~ 7kHz频带内SPM机体的简谐迫振对扫描图像的影响。
短句来源
     A Method of Hardware Design for Fan Vibration Measuring System
     一种风机测振系统的硬件设计方法
短句来源
     A Study for Layer Grating Laser Doppler Vibration Measuring System
     层栅激光多普勒测振系统研究
短句来源
     The laser lever displacement meter has been developed in Octobsr 1983.The laser lever method has an incomparable advantage over the conventional method in the measurement of amplitude of light and stiperlow frequency vibrating body and in the calibration of vibration piokup for vibration measuring system.
     首次以杠杆原理制作的激光位移测量仪已于1983年10月研制成功。 它在自重轻、超低频振动物体的振幅测量和测振系统传感器的标定等方面显示了现有方法无可比拟的优点。
短句来源
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  test libration system
     Apply of the laser test libration system on the hydraulic metal structure
     激光测振系统在水工金属结构上的应用
短句来源
     Apply of the laser test libration system on the hydraulic metal structure(continuation)
     激光测振系统在水工金属结构上的应用(续)
短句来源
  “测振系统”译为未确定词的双语例句
     Tests demonstrate that the system has measuring capability of frequency resolution 0.6Hz,amplitude uncertainty is less than ±10μm.
     经测试表明,该测振系统的测量频率分辨率可达到0.6Hz,振幅不确定度小于±10μm。
短句来源
     In order to measure the vibration information of a rotor on line,a laser vibration system including software and hardware is set up,based on diode laser as light source,PSD(position sensitive detector) as receiver and photo-electric triangular measuring method.
     为了测量在线转子的振动信息,以半导体激光器为光源,以PSD(position sensitive detector)为探测器,基于光电三角测量法,建立了一套包括软、硬件在内的激光测振系统
短句来源
     Design of Whorl-current System for Vibration Testing
     涡电流测振系统的设计
短句来源
     The mounting resonant frequency of vibration measurement system formed with piezo-electric acceleration sensor YD-1 and mounted magnetic base CZ-4 is addressed.
     介绍了YD-1型压电式加速度传感器与CZ-4型磁座构成的磁座安装测振系统的安装谐振频率。
短句来源
     A Study on the Revolving Field Direction Discrimination Laser Doppler Vibrometer
     旋转场辨向层栅激光多普勒测振系统研究
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A laser feedback interferometer for measurement of vibration has been improved by introduction of a matching lens. This improvement enables the system to measure samples having a rude surface and dimensions of down to micrometer range. With the introduction of matching lens, the collimation tolerance of samples could also be greatly relaxed by an order of magnitude or more.

通过引入匹配透镜而改进了激光反馈干涉测振系统,使系统能够测量具有粗糙表面的样品以及线度小至微米级的样品。还大大放宽了样品的对准容差约一个量级。

The revolving field principle is a simple and sensitive method of velocity direction discrimination. The Jones Vector can be applied effectively to the composition of signals related to the revolving field. Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.

弱散射光的回收处理和速度方向的辨别均是激光多普勒测速技术中的关键问题。 采用单周期层栅可充分回收利用信号光能量,应用旋转场可广泛灵敏和简单方便地辨 别速度方向。在国外近几年研究成果的基础上,自行建成了旋转场辨向层栅激光多普 勒测振系统并成功获得了多普勒信号。本文借助于层栅理论和琼斯矢量综述其机理方 面的理论与实验研究工作,并举例说明基于旋转场辨向各种测试手段中信号叠加方案 的一般分析方法。

This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model. By the aid of the formula, time-space mean value of interfacial sound pressure level of vibrating plate is obtained from several calculated values of interfacial noise in terms of energy average method. According to time-space mean value, another formula derived in reference 5 is adopted to calculate sound pressure level at an arbitrary...

This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model. By the aid of the formula, time-space mean value of interfacial sound pressure level of vibrating plate is obtained from several calculated values of interfacial noise in terms of energy average method. According to time-space mean value, another formula derived in reference 5 is adopted to calculate sound pressure level at an arbitrary point in sound field around vibrating plate.

本文以脉动半球声源为基本物理模型,推导了由振动量计算振动点的界面噪声的理论公式。并采用参考文献[5]所推导的公式来计算空间任一点处的声压级,从而系统地建立了板壳结构振动与其周围辐射声场关系的一套数学模型和计算的方法步骤。最后以奔野—25变速箱的某一侧壁面为研究对象,分别采用一套测振系统和测声系统进行了对比试验。并由JEF—16AN实时信号分析仪和PC—1500袖珍计算机进行数据处理,结果表明,和实测值相比,振动量计算得的噪声值误差在2dB以内。

 
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