1) Interferometer phase-measure
干涉仪测相
3) coherence interferometer
相干干涉仪
4) phase-shifting interferometer
移相干涉仪
1.
Advances in vibration cancellation phase-shifting interferometer;
移相干涉仪的抗振技术研究进展
2.
In modern digital phase-shifting interferometry (PSI), the phase-shifting error of piezoelectric transducer (PZT) optical phase shifter, which is the basic device of phase-shifting interferometer, directly effects measurement accuracy during wavefront phase unwrapping with phase-shifting interferograms.
压电晶体 (PZT)光学移相器作为移相干涉仪 (PSI)的关键部件 ,其移相误差直接影响被测波面的相位复原精度。
3.
However, the external micro-vibrations are often the dominant error sources in phase-shifting interferometers since its sensitivity.
移相干涉术(PSI)是一种高精度、高灵敏度、非接触式光学测试方法,易受环境振动的影响,环境振动是移相干涉仪测量误差的主要来源之一。
5) phase interferometer
相位干涉仪
1.
The effect of baseline obliquity on measuring angle of phase interferometer;
基线倾角对相位干涉仪测向的影响
2.
Joint estimation of polarization and arrival angle based on phase interferometer;
基于相位干涉仪的极化和到达角的联合估计
3.
Research on phase error in the system of direction finding by phase interferometer;
相位干涉仪测向系统相位误差研究
6) correlation interferometer
相关干涉仪
1.
The correlation interferometer algorithm is a kind of direction finding method with the characteristic of easy design and implementation.
相关干涉仪算法是一种设计实现非常简便的测向方法,使用FPGA设计技术可以解决处理速度比较慢的问题。
2.
After the theory of Correlation Interferometer and how to improve the precision of Frequency Hopping Direction Finding are introduced, of which the simulation and software has been completed.
针对跳频信号的测向,简述了相关干涉仪原理以及影响系统测向精度的因素,进行了计算机仿真并完成了软件设计。
3.
Aiming at the problem that the estimation error of arrival wave azimuth is large even sometimes disabled by using the correlation interferometer direction finding(DF) under the low signal-to-noise ratio(SNR),this paper presents a DF method of correlation interferometer based on the phase-difference(PD) vector accumulation.
针对在低信噪比条件下相关干涉仪测向来波方位角估计误差较大甚至有时失效的问题,提出一种基于相位差矢量累积的相关干涉仪测向处理方法。
补充资料:测长干涉仪
测长干涉仪
interferometer for length measurement
Cechang gansheyi测长干涉仪(interferometer for length~ure-叮峪nt)用于长度精密测量的干涉仪的总称。随着测量对象和测量不确定度的不同,测长干涉仪的结构和类型也各不相同。其基本原理是使被测长度与干涉仪中两光路的光程差相联系,并通过干涉仪的干涉图像或干涉图像的变化对光程差进行测量而得到被测长度,即以十分小的光“波长”为尺子测量长度。它等于对应于被测长度的干涉级次与光半波长之乘积。依测t方法可分为两大类:干涉条纹计数法和小数重合法。干涉条纹计数法采用电子计数技术得出对应于被测长度的干涉级次,不足一条干涉条纹的小数部分则忽略不计;小数重合法则采用几种不同的波长测l干涉级次的小数部分,并计算得到干涉级次的整数部分。干涉仪的结构和测量环境条件对测量结果均有影响,故必须对测t结果进行修正,最后得到被测长度。例如,干涉仪人射光孔的修正,以及空气的压强、温度、湿度对光波长的影响的修正等。(倪育才)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条