Recently the main test methods for cylindrical mirror are template comparison measurement and interference measurement.
目前柱面镜检测的主要方法是样板比较法和干涉法。
There are a variety of optical methods among which the interference measurement has the advantage of high resolution and wide dynamic range.
在各种不同的光学方法中,干涉测量法具有分辨率高和动态范围大的优点。
Time average interference measurement method is used in the experiment, and the vibration interference patterns of the object with different vibrating frequencies is obtained.
实验中采用时间平均干涉测量法,得到了不同振动频率下物体的干涉图形。
The template measurement requires high quality spherical template or cylindrical template. And the interference measurement needs appropriate high quality assistant lens and environment.
样板法对球面、柱面样板均有较高要求,而干涉法也需合适的高要求的辅助镜,并且对环境要求较严格。
High precision laser interference measurement system is the decisive factor of precision displacement measurement. In this paper, a kind of two_frequency laser measurement system is introduced.
高精度的激光干涉测量系统是精密位移测量的决定性因素。本文介绍一种自行研制的双频激光测量系统。
In the paper the principle and the configuration of the wireless alarming system is introduced, meanwhile the anti-interference measurement and the way to low the error-alarming rate are mentioned.
本文介绍无线报警系统的组成及工作原理,抗干扰和减小误报率的有效措施。
Analysis software for total sample evaporation technique has been developed. The factors of interference measurement, such as sample size, signal intensity loss and sample residue, have been studied.
开发了用于全蒸发技术的测量软件,对影响测量结果的因素,诸如分析用样量、信号损失与试样残留等进行了研究。
Some of the topics include measurement connections, electrostatic interference and shielding, environmental factors, speed considerations, etc.
若干标题包括:测量连接、静电干扰和屏蔽、环境因素和速度考虑等。
Leakage current is another source of measurement interference that must be characterized.
漏泄电流是另一种必须表征的测量干扰源。
Meanwhile, to suppress external interference and measurement noise, a filter is added into control system.
同时,为抑制系统外部干扰和测量噪声,在控制系统中加入了滤波环节。
In the design of cellular radio systems, power control methods based on signal-to-interference ratio (SIR) measurement have been used widely.
在蜂窝无线通信系统设计中,基于信号干扰比(SIR)测量的功率控制方法得到广泛的应用。
Unitary power control based on Signal-to-Interference Ratio (SIR) measurement has been widely used in cellular radio system.
基于信号干扰比(SIR)测量的归一化功率控制在无线蜂窝系统中有着广泛的应用。
With the improvement of measurement velocity in laser heterodyne interference, the theoretical error of laser heterodyne interference seriously restricted the accuracy of measurement.
随着激光外差干涉测量速度的提高,其存在的原理性误差严重影响测量精度。
The mathematical models of surface profile as well as dividing the instrument error and the measurement interference are established.
本文还建立了表面轮廓和分离表面轮廓测量干扰及仪器误差的数学模型。
This paper introduce a new type of high precision measurement system based on plane isoclinic interference theory (PUT).
介绍了一种新型的基于平面等倾干涉原理的高精度平面度测量系统。
It can be used to observe phase objects, and the interference fringes can be modulated on the continuously changed phase objects for measurement.
特点是既可用来观察位相物体,也可把干涉条纹调制在位相连续变化的物体上进行测量。
Two methods of measurement of the refractive index profile in optical fibers: interference microscope method and near field method are evaluated.
对两种测量光纤折射半剖面的方法:干涉显微镜法和近区场法,进行了评价。
Theories and technologies of live line measurement have appeared, including the interference method, the incremental method, the differential equation method and the integral equation method.
针对上述情况出现了很多带电测量输电线路零序互感参数的新的理论和技术,包括干扰法、增量法、微分法、积分法等。
Primary experimental results indicate that the project using the method of non-contact intraocular pressure (IOP) measurement based on laser interference to measure should be feasible.
初步实验结果表明:用激光干涉的方法进行非接触眼压测量这一方案是可行的。
This paper presents a compact laser diode doppler interference system used in velocity measurement. The velocity measurement accuracy and application of the system are discussed.
本文就半导体激光小型多普勒干涉系统的研制及作为速度测量系统的测量精度和实用可行性进行了探讨。
The measurement of group refractive index of fibers using semi coherent interference is introduced.
介绍了用准相干干涉法测量光纤群折射率的方法。
The interference factors in chemical engineering measurement are analyzed, the methods for reducing the interference based on many years practice are put forward.
分析了化工测量中的干扰问题,并结合多年来的工作实践,提出了一些抗干扰的方法。
To restrain random interference and pulse interference and improve measurement accuracy and stability, the digital filtering method which average the data crossing the extremum out is adopt.
数据处理中,采用了去极值平均滤波的数字滤波方法,有效地抑制了随机干扰及脉冲干扰,增加了系统的稳定性,提高了测量精度。
The emphasis of the research of the method of time difference measurement is how to suppress noise and interference effectively.
有效地抑制噪声和干扰是研究各种时差测量方法的重点。
This article introduced the general measurement technique of the characteristics of radio interference and the measurement of the characteristics of radio disturbance from some equipments.
介绍了无线电干扰特性的一般测量方法,以及部分设备的无线电骚扰特性测量。
To overcome the interference of background light, a new turbidity measurement method is described which uses light with modulated intensity as source.
为避免背景光的干扰,本文提出了采用调制光强测量浊度的新方法。
According to the measurement method, feeding a rf sinusoidal signal at location of interference source, so this signal is radiated by electrified railway system.
此方法从干扰源处——接触网与受电弓之间馈入高频信号,由电气化铁道系统辐射出去进行测量。
According to the measurement method, feeding a rf sinusoidal signal at location of interference source, so this signal is radiated by electrified railway system.
此方法从干扰源处——接触网与受电弓之间馈入高频信号,由电气化铁道系统辐射出去进行测量。
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