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1·This article describes the design of a high precision ultrasonic flowmeter.

文章报导了一种新型高精度超声波流量计的系统设计。

2·Principles, types and latest development jacketed ultrasonic flowmeter are also introduced.

介绍了管外夹装式超声波流量计的基本原理、类型及其最新进展；

3·Introduced are the structure, measuring principle and speciality of the memory ultrasonic flowmeter.

介绍了存储式超声流量计的仪器结构、测量原理和特点。

4·In the thesis, an ASIC for ultrasonic flowmeter is designed based on the principle of time difference.

论文根据时差法超声波流量计的测量原理，设计了一款超声波流量计专用芯片。

5·The method in this paper is used by the ultrasonic flowmeter and a very good effect has been obtained.

该方法已应用在超声波流量计中，收到了很好的效果。

6·The wide-wave ultrasonic flowmeter has the unique second channel to automatically adjust the zero point drift.

并通过宽波束流量计特有的第二通道对零点漂移进行自动调整。

7·Introduces the theory basis, structure, circuit principle, working mode and characteristics of ultrasonic flowmeter we designed.

介绍了生产测井超声流量计设计的理论基础以及仪器结构、电路原理、工作方式和特点。

8·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)。

9·This article points out that using the portable ultrasonic flowmeter can realize the large-caliber flowmeters on-line testing and calibration.

文章指出采用便携式超声波流量计可以实现在线大口径流量计的检测及校准，并介绍了检测步骤和检测时需要满足的条件。

10·Based on the characteristic of the Wide-beam ultrasonic flowmeter, automatic gain control amplifier and the tracking band-pass filter are devised.

并根据宽波束超声波流量计的特点重点进行了自动增益控制放大器和跟踪带通滤波器的设计。