多通道超声波气体流量计的原理及标定

Principles and Calibrations of the Multipath Ultrasonic Gas Flowmeter

本文简要介绍了多通道超声波速差法气体流量计的原理、性能 ,及利用调温调湿风洞对直径为 D70 0 mm的大口径超声波气体流量计进行喷嘴法标定的原理。

The principles and characteristics of the multipath ultrasonic gas flowmeter using velocity deference method are introduced. And the principles, steps and results of calibration using wind tunnel for the ultrasonic gas flowmeter with large diameter tube (D700mm) are also presented in this paper.