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- Doppler Spectrum Analyzer 多普勒频谱分析器
- A FFT spectrum analyzer was used to measure the resonant frequency. 试验时采用六种实大尺寸试材,共振频率之测定系利用FFT频谱分析仪。
- This document discusses EMI measurements using the Real-Time Spectrum Analyzer. 本文探讨了如何使用实时频谱分析仪进行EMI测量。
- The energy centrobaric method is made use of correcting the Doppler spectrum, the simulation predicted value of the target velocity is obtained. 用能量重心校正法对多普勒频移校正,进而得到物体的运动速度的模拟计算值。
- Conclusions:The Doppler spectrum of CFV in moderate and severe TR group is characteristic with high atrial reversal velocity and long duration. 中、重度 TR组 CFV血流频谱受呼吸运动的影响减低 ; Va与 TR程度显著正相关 (r=0 .;92 3;P<0
- The Real-Time Spectrum Analyzer (RTSA) has many superior capabilities for signal monitoring and surveillance. 实时频谱分析仪(RTSA)为信号监测和监控提供了许多杰出的功能。
- Results:The blood flow was abundant around the cancer tissue.The color signal of blood flow showed garland-like or punctate.The feature of its Doppler spectrum was o... 结果:前列腺癌周边血流丰富,彩色血流信号呈花环状或点棒状,多普勒频谱测值为高阻力指数特征。
- This document describes the advantages of using a Real-Time Spectrum Analyzer to measure switching power supplies. 本文介绍了使用实时频谱分析仪进行开关电源测量的优势。
- Measurement was made with a spectrum analyzer by first filtering out the fundamental sinewave. 首先滤除基础正弦波频率。
- Based on this phenomenon, a new configuration of integrated acoustic RF spectrum analyzer (IASA) is proposed. 基于上述现象,作者提出一种新形式的集成声学射频频谱分析器(IASA)结构。
- Both an RF power analyzer and a spectrum analyzer are essentially specialized superheterodyne receivers. 功率分析仪和频谱分析仪都本质上都是超外差接收机。
- The NIMA Method for Improved Moment Estimation from Doppler Spectra. 从多普勒光谱进行的改进瞬时评估的NIMA方法。
- The tensile and impact section of the pangolin’s scale were examined with SEM and an energy spectrum analyzer. 利用扫描电镜及能谱仪对材料的拉伸、冲击断口及成分进行了分析。
- The spectrum analyzer that operates series of any a kind of HP8590A needs those who have lowermost limit to groom only. 操作任何一种HP8590A系列的频谱分析仪只要要进行最低限度的培训。
- Objective:To detect the characteristics of Doppler flow spectrum of common femoral veins(CFV) in patients with tricuspid regurgitation(TR) and to determine the relation between Doppler spectrum and the degree of TR. 目的 应用多普勒超声技术检测三尖瓣返流 (TR)患者的股总静脉 (CFV)血流频谱 ,探讨频谱形态与 TR程度的关系。 方法 TR患者 6 5例 ,轻度 2 8例 ,中度 2 0例 ,重度 17例。
- The data acquisition of spectrum analyzer.is achieved on the basis of programming instruction set of spectrum analyzer. 文中介绍基于虚拟仪器技术的频谱分析仪自动测试系统的设计过程。
- In PAH group, the mitral valve orifice blood streams, the AV of Doppler spectrum,the velocity-time integra and AV/EV, AVI/EVI were all increased significantly compared with the control group (P<0?01). PAH组与对照组比较;二尖瓣口血流多普勒频谱A峰流速(AV)、速率时间积分(AVI)及肺动脉压与二尖瓣口血流频谱比值(AV/EV);AVI/EVI均逐渐明显增大;差异均有显著意义(P<0.;01);
- EMC measuring instrument, signal simulator, interference eliminator, interference receiver, spectrum analyzer. 电磁兼容测试仪器信号模拟器干扰抑制器干扰接收机、频谱分析仪;
- Methods Left ventricular stroke volume (LVSV) in 36 healthy volunteers were measured by RT-3PE, M-mode Teichholz, two-dimensional echocardiography (2DE) simpson method and the product of aortic flow Doppler spectrum integral and aortic valvular area. 方法应用RT-3PE测量36例正常人的左室每搏量(LVSV),并分别与M型Teichholz法、二维超声心动图Simpson法、多普勒主动脉瓣环血流量法所测的LVSV进行比较。
- Finally, compared with the integrated acoustic-optic spectrum analyzer (IOSA), the potentiality of AGSA is estimated. 讨论了决定这种器件性能的几个主要因素,估计了这种器件的发展潜力,并与集成声光射频频谱分析器作了比较。