Detection by interferometric fiber-optic accelerometer;
基于DSP的干涉型光纤加速度计检测方案的研究
Owning to their many advantages,military and national defense are interested in fiber-optic accelerometers.
光纤加速度计凭借自身的诸多优势而受到军事和国防领域的青睐,因此广泛应用于惯性导航系统;但由于受光源光功率的随机变化、光电探测器噪声、电路噪声以及环境噪声的影响,光纤加速度传感器的输出信号通常非常微弱,而且含有大量噪声,从而降低了光纤加速度计的精度,首先针对光纤加速度计系统中的几种主要噪声及其特征进行了分析,针对噪声的特点,研究了小波包分析的方法,并利用该方法提取信号中的有用信息,最终达到削弱干扰噪声的目的;从仿真结果来看,该去噪方法有效。
The dynamic range of fiber-optic accelerometer is an important technique parameter.
动态范围是光纤加速度计的一个很重要的指标,文中重点通过理论分析来确定光纤加速度计动态范围上限值所应满足的条件;与以往只能通过仿真来验证理论分析是否正确不同的是,在这里通过实验结果验证了理论分析结论的正确性;分析结果对工程应用中光纤加速度计检测上限值的确定有一定的实用价值。
laser doppler velocity meter, laser doppler velocimeter
多普勒式激光速度计
vector velocity laser velocimeter
向量速度激光测速仪
Measuring the precision of laser Doppler velocimeter based on counting
基于计数法测量激光多普勒测速仪的测速精度
A Research on Three-Dimensional Simulation of Temperature Fields of Laser Rapid Prototyping and Calculation of Its Strain Fields;
激光快速原型三维温度场仿真及其热应变计算
Research of the Shock Calibration with Laser-interferometry for High G Accelerometers;
高g值加速度计激光干涉冲击校准技术研究
Calibration of the High-g Accelerometer with Laser Interferometer And the Method for Signal Processing
高g值加速度计激光干涉校准及信号解算方法
Optimizing for Laser Power and Scanning Velocity Matching in SLS
SLS中激光功率与扫描速度匹配的优化设计
Doppler two-color laser anemometer
多普勒双色激光风速计
laser tripler monochrometer, laser triper monochromator
激光三联单色光度计
rapid scanning spectrophotometer
快速扫描分光光度计
ultrascan laser densitometer
超精度扫描激光密度计
Study on the Critical Velocity of Laser Scanning Based on the Calculation of Temperature during Laser Cladding Process
温度计算基础上的激光熔覆过程临界扫描速度的探讨
Fast deformation velocity measurement using laser Doppler velocity interferometer
应用激光多普勒速度干涉仪测量快速形变速度
interferometric fiber optic accelerometer
干涉型光纤加速度计
Study on the Spectrum of SO~+ Using the Velocity Modulation Spectroscopy Combined with the Optical Heterodyne
SO~+分子离子光外差—速度调制激光光谱研究
rapid-scanning photoelectric spectrophotometer
快速扫描光电分光光度计
Meanwhile, the spectrum is also related to the shock wave velocity.
光谱的结构特征也依赖于激波的速度。
The Design of 1550nm Ridge Waveguide High Speed Laser Chip;
1550nm脊波导高速激光器芯片设计