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- Doppler Spectrum Analyzer 多普勒頻譜分析器
- A FFT spectrum analyzer was used to measure the resonant frequency. 試驗時(shí)采用六種實(shí)大尺寸試材，共振頻率之測定系利用FFT頻譜分析儀。
- This document discusses EMI measurements using the Real-Time Spectrum Analyzer. 本文探討了如何使用實(shí)時(shí)頻譜分析儀進(jìn)行EMI測量。
- The energy centrobaric method is made use of correcting the Doppler spectrum, the simulation predicted value of the target velocity is obtained. 用能量重心校正法對多普勒頻移校正，進(jìn)而得到物體的運動(dòng)速度的模擬計算值。
- 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組 CFV血流頻譜受呼吸運動(dòng)的影響減低 ; Va與 TR程度顯著(zhù)正相關(guān) (r=0 .;92 3;P<0
- The Real-Time Spectrum Analyzer (RTSA) has many superior capabilities for signal monitoring and surveillance. 實(shí)時(shí)頻譜分析儀(RTSA)為信號監測和監控提供了許多杰出的功能。
- 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... 結果:前列腺癌周邊血流豐富,彩色血流信號呈花環(huán)狀或點(diǎn)棒狀,多普勒頻譜測值為高阻力指數特征。
- This document describes the advantages of using a Real-Time Spectrum Analyzer to measure switching power supplies. 本文介紹了使用實(shí)時(shí)頻譜分析儀進(jìn)行開(kāi)關(guān)電源測量的優(yōu)勢。
- Measurement was made with a spectrum analyzer by first filtering out the fundamental sinewave. 首先濾除基礎正弦波頻率。
- Based on this phenomenon, a new configuration of integrated acoustic RF spectrum analyzer (IASA) is proposed. 基于上述現象,作者提出一種新形式的集成聲學(xué)射頻頻譜分析器(IASA)結構。
- Both an RF power analyzer and a spectrum analyzer are essentially specialized superheterodyne receivers. 功率分析儀和頻譜分析儀都本質(zhì)上都是超外差接收機。
- The NIMA Method for Improved Moment Estimation from Doppler Spectra. 從多普勒光譜進(jìn)行的改進(jìn)瞬時(shí)評估的NIMA方法。
- The tensile and impact section of the pangolin’s scale were examined with SEM and an energy spectrum analyzer. 利用掃描電鏡及能譜儀對材料的拉伸、沖擊斷口及成分進(jìn)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. 操作任何一種HP8590A系列的頻譜分析儀只要要進(jìn)行最低限度的培訓。
- 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 應用多普勒超聲技術(shù)檢測三尖瓣返流 (TR)患者的股總靜脈 (CFV)血流頻譜 ,探討頻譜形態(tài)與 TR程度的關(guān)系。 方法 TR患者 6 5例 ,輕度 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. 文中介紹基于虛擬儀器技術(shù)的頻譜分析儀自動(dòng)測試系統的設計過(guò)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組與對照組比較;二尖瓣口血流多普勒頻譜A峰流速(AV)、速率時(shí)間積分(AVI)及肺動(dòng)脈壓與二尖瓣口血流頻譜比值(AV/EV);AVI/EVI均逐漸明顯增大;差異均有顯著(zhù)意義(P<0.;01);
- EMC measuring instrument, signal simulator, interference eliminator, interference receiver, spectrum analyzer. 電磁兼容測試儀器信號模擬器干擾抑制器干擾接收機、頻譜分析儀；
- 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. 方法應用RT-3PE測量36例正常人的左室每搏量(LVSV),并分別與M型Teichholz法、二維超聲心動(dòng)圖Simpson法、多普勒主動(dòng)脈瓣環(huán)血流量法所測的LVSV進(jìn)行比較。
- Finally, compared with the integrated acoustic-optic spectrum analyzer (IOSA), the potentiality of AGSA is estimated. 討論了決定這種器件性能的幾個(gè)主要因素,估計了這種器件的發(fā)展潛力,并與集成聲光射頻頻譜分析器作了比較。
