Laser frequency measurement的意思|示意

In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.

为了实现高准确的测量对象的速度，激光多普勒测速雷达系统建立和频率估计算法研究。

The present state of the dual-frequency laser interferometer in the world is introduced in brief. The trends of development to high resolution, high accuracy, high measurement speed etc. are given.

文章概述了国内外双频激光干涉仪产品的现状，介绍了近年来双频激光干涉仪向高分辨率、高精度、高测速等几个方向的发展趋势。

This paper discussed an opto-heterodyne technique for small-plane-angle measurement with a frequency-stabilized longitudinal Zeeman laser as the light source.

文本用纵向塞曼双频稳频激光器作光源，提出了一种光学超外差法小平面角的精密测量方法。

The measurement result is optimized by using the rotating grating for splitting laser light and producing frequency shift to determine the fluid direction.

采用旋转光栅分束产生频移来辨别流向，使测量最佳化。

Femtosecond laser-frequency comb techniques are vastly simplifying the measurement.

飞秒激光光梳技术大大简化了光频的测量。

The design principle and experiment results of wide frequency band measurement of ps laser pulsewidth are given.

给出了皮秒激光脉冲宽度带测量的设计原理和实验结果。