四频

CO2激光非线性四频外差探测的实验研究

The experimental study on nonlinear four-frequency heterodyne detection of CO _2 laser

基于FPGA的四频激光陀螺高分辨率计数电路

High resolution countering circuit for differential laser gyros based on FPGA

通过建立多频相对论返波振荡器的物理模型，在对其工作原理分析的基础上，进行了粒子模拟的研究，获得了X波段的三频和四频的微波输出。

Based on the analysis of principles of the multi-frequency relativistic backward wave oscillator , the physical model was established and particle simulation was carried out . Output of X-band tri-band and quad-band microwave was acquired .

国产MOS场效应晶体管阈值电压不稳定性的初步探讨四频环形激光零漂误差的分离及研究

A Primary Study of the Instability of the Threshold Voltage Shift of Native MOS Transistors Separation and Preliminary Analysis of the Shift Errors in Four-frequency Ring Laser

用四频复用FSK数字调制体制，通过对四个副载波的合理调配，在一条线路上实现多路、多种类型的通信。

Using four-frequency reuse FSK digital modulation technology and properly adjusting the four carrier waves , this paper describes how to realize multi-route and multi-kinds signals transmit within a communication line in the feeder automation system .

为了减小四频差动激光陀螺（DILAG）的磁敏感性，研究了工作点对磁敏感性的影响。

In order to reduce magnetic sensitivity of four-frequency differential laser gyro ( DILAG ), effect of operating point on magnetic sensitivity was investigated .

四频差动环形激光器静态拍频特性的随机散发

Random Divergence of Static Beat Character for Four Frequency Ring Laser

四频差动激光陀螺的磁敏感性与最佳工作点

Magnetic Sensitivity and Optimal Operating Point of Four-Frequency Differential Laser Gyroscope

四频差动激光陀螺小抖动稳频初步研究

Preliminary Study of Dithering Frequency Stabilization for Four-Frequency Differential Laser Gyro

研究了四频激光陀螺和频与温度之间的关系。

The relation of frequency sum to temperature is studied .

四频激光陀螺性能与室温的相关性研究

Correlation of Differential Laser Gyro 's Performance and Room Temperature

四频差动激光陀螺法拉第旋光片的加工

Arts of Faraday effect element of the four mode RLG

基于多周期测量的四频差动激光陀螺高精度信号解调

Signal Demodulation for Differential Laser Gyros Based on Measurement of Multiple Periods

四频环形激光零漂误差的分离及研究

Separation and Preliminary Analysis of the Shift Errors in Four-frequency Ring Laser

高精度测频方法及其在四频激光陀螺中的应用

High Precision Frequency Measurement Method and Its Application in Four Frequency Laser Gyros

四频涡流检测仪原理及应用

Principle and application of four-frequency eddy current inspection instrument

四频差动激光陀螺的磁效应研究及加热器件的选择

The Magnetic Effect of the Differential Laser Gyro and the Choose of Heating Element

四频激光陀螺和频与温度关系的研究

Research on the relation of frequency sum to temperature in the four frequency RLG

用于电站热交换管检测的四频涡流检测仪

Four-frequency Eddy-current Detecting Device for the Detection Testing of Power Plant Heat Exchange Tubes

基于电子信号处理的四频激光陀螺信号读出研究

Study on signal readout of four-frequency differential laser gyro based on electronic signal processing

对四频激光陀螺的稳定性与所使用的材料和元件作了论述。

The relationship between its stability and material and elements used are also described .

四频差动激光陀螺的热效应浅述与其温度分布的测试

The thermo effect of the laser gyro and the measuring of it 's temperature

四频差动激光陀螺中的粒子数脉动效应

Population pulsation effect in four-frequency differential laser gyro

对采用四频差动法偏频的环形激光器中光场偏振度进行了计算和讨论。

Degree of polarization of the optical modes in ring lasers are calculated and discussed .

最后分析了水晶片旋光性质变化的原因，对四频差动激光陀螺中水晶片的安装具有一定的指导作用。

It has a directive function for the installation of crystal in differential laser gyro .

四频差动激光陀螺三种误差模型对寻北精度的影响

Effect of three error models on north-seeking precision for differential laser gyro with four frequencies

石英晶体温度效应对四频差动激光陀螺中光场偏振特性的影响

Influence of quartz crystal temperature effect on optical polarization characteristics of four-frequency differential laser gyro

四频差动激光陀螺中差分损耗的探讨

The Loss Difference in Differential Laser Gyros

我们是专门从事手机，特别是四频双卡手机。

We are specializing in the Mobile phone , especially the quad-band dual sim mobile phone .

实验表明，此方法提高了四频差动激光陀螺角速度测量分辨率，为快速高精度方位自对准奠定了基础。

The experiments show that the method increases resolution of differential laser gyros angle rate measurement .