超声血流仪实现其测量血流速度的关键是多普勒频移信号的提取，多普勒频移信号是血流速度的真实反映。
As Doppler shift signal can significantly reflect the speed of flow, the abstracting of Doppler shift signal is the key of blood flow speed testing in a ultrasonic blood flow detector.
本文运用相关分析方法测量流速和流量，证明了超声波相关法测量流量的可行性。
The noise spectra of ultrasonic cleaners are measured by two methods, and the noise characteristics are discussed.
二维超声测量肾脏的大小；多普勒流速曲线分析肾脏血流动力学的改变。
The sizes of kidneys were evaluated by two-dimensional ultrasound while the changes of hemodynamics were analyzed by Doppler velocity Tracing.
超声波是FDA认可的一种安全的非侵入性诊断实验项目，利用声波来测量大动脉血管中的血液流速。
Ultrasound is a safe, non-invasive, FDA approved diagnostic test that USES sound waves to measure blood-flow velocity in large arteries.
实验验证了超声涡街流量测量技术在低流速下有良好的测量效果，并指出影响测量成功率的因素。
It proved that ultrasonic vortex technology was of good effect on measuring flowing gas in low speed and indicated the factors affecting the results.
使用美国HP5500型超声仪，由同一技术人员操作，测量肝门静脉、脾静脉内径及平均血流速度。
American HP5500 ultrasound instrument was used to determine the diameters and average velocities of portal vein and splenic vein.
方法用彩色多普勒超声观察心腔和肺动脉内的血流颜色变化，并用连续多普勒超声测量肺动脉内血流速度。
Methods Using color Doppler flow imaging to detect the pulmonary blood color and continuous wave Doppler echocardiogram to measure the pulmonary flow velocity.
它在利用DSP处理器实现超声波收发控制的基础上，充分发挥DSP的数字信号处理能力来测量流速信息。
On the basis of using DSP processor to realize the ultrasonic transceiver control, it makes full use of DSP digital signal processing capability to measure the velocity information.
应用经食管超声心动图测量肺静脉血流频谱曲线收缩早期逆向R波峰值流速（PVR）和收缩期S波峰值流速（PVS） ，分析PVR和PVS与其前心电图R R间期的关系。
The peak velocities of the early systolic reversal wave (PVR) and the systolic forward wave (PVS) were measured. The relationships between the preceding R-R intervals and PVR, PVS were analyzed.
提供了一种通过利用超声波多普勒频移来测量流体(10)的流速的多普勒型超声波流量计(1)。
There is provided a Doppler type ultrasonic flowmeter (1) for measuring a flow rate of a fluid (10) by using an ultrasonic Doppler shift.
提供了一种通过利用超声波多普勒频移来测量流体(10)的流速的多普勒型超声波流量计(1)。
There is provided a Doppler type ultrasonic flowmeter (1) for measuring a flow rate of a fluid (10) by using an ultrasonic Doppler shift.
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