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Can an ultrasonic flowmeter measure gas flow rate and what is the principle of an ultrasonic flowmeter?
1. Currently, domestically produced ultrasonic flow meters use 1MHz and cannot propagate gas as a medium, so they cannot measure. 2. Principle of Ultrasonic Flow Meter: In the process of measuring the flow state of a fluid, the propagation speed of ultrasonic waves in the upstream is slightly smaller than that in the downstream. In the case of a constant pipe diameter, the flow velocity is proportional to the time difference. The host of the ultrasonic flow meter calculates the flow velocity (display 1) based on this time difference, and the flow velocity X cross-sectional area=flow rate (display 2).
2. Advantages and disadvantages of ultrasonic gas flow meters
Hello, KNKE, an American imported ultrasonic flow meter manufacturer, is pleased to answer your question.
. The advantages of ultrasonic flowmeter are that it is a non-contact measuring instrument that can be used to measure fluid flow rates and large pipe diameters that are difficult to contact and observe. It will not change the flow state of the fluid, will not cause pressure loss, and is easy to install; Can measure the flow rate of highly corrosive and non-conductive media; The measurement range of ultrasonic flowmeter is wide, with a diameter range from 20mm to 5m; Ultrasonic flow meters can measure the flow rates of various liquids and wastewater; The volumetric flow rate measured by an ultrasonic flowmeter is not affected by thermal properties such as temperature, pressure,
3. Technical parameters of gas ultrasonic flowmeter
Measurement principle: Time difference correlation principle Flow rate: 0.01~25 m/s Resolution: 0.025 cm/s Repeatability: 0.15% reading, depending on application Accuracy (flow field fully developed and radially symmetrical) Volume flow rate: ± 1% reading, depending on application ± 0.5% reading, calibrated Flow rate: ± 0.5% reading, depending on application Measurable medium: Acoustic impedance ratio between pipe wall and gas『SILVER Official Website SERVICE』