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1. How to adjust the display size of a mass flowmeter
What is a mass flowmeter? What is a mass flow controller? Mass Flow Meter (MFM), also known as Mass Flow Meter, is an instrument that accurately measures gas flow rate. Its measurement values are not inaccurate due to temperature or pressure fluctuations and do not require temperature and pressure compensation. Mass Flow Controller (MFC), also known as Mass Flow Controller, not only has the function of a mass flow meter, but more importantly, it can automatically control the gas flow rate. Users can set the flow rate according to their needs, and MFC automatically maintains the flow rate at the set value. Even if there are fluctuations in system pressure or changes in ambient temperature, it will not deviate from the set value. Simply put, a mass flow controller is a gas flow stabilizing device that can be manually set or automatically controlled by connecting to a computer.
2. What does FL0wMETER mean in Chinese?
Flowmeter English; [Network] flowmeter; Flow meter; Flow meter; The theoretical basis and experiments of a new type of mass flowmeter are introduced. [Other] Similar words: flowmeter
3. Other commonly used types of flow meters
Ultrasonic flow meters are instruments that measure flow by detecting the effect of fluid flow on ultrasonic beams (or ultrasonic pulses). According to the principle of signal detection, ultrasonic flow meters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method, and frequency difference method), beam offset method, Doppler method, cross-correlation method, spatial filtering method, and noise method. Ultrasonic flow meters, like electromagnetic flow meters, are unobstructed flow meters due to the absence of any obstruction in the instrument flow channel. They are a type of flow meter suitable for solving difficult flow measurement problems, especially in large-diameter flow measurement, and have outstanding advantages. They are one of the rapidly developing types of flow meters. Advantages:
(1) Can be used for non-contact measurement;
(2) is a measurement without flow obstruction and pressure loss; (3) It can measure non-conductive liquids and is a supplement to electromagnetic flow meters for unobstructed measurement. Disadvantages:
(1) The propagation time method can only be used for cleaning liquids and gases; The Doppler method can only be used to measure liquids containing a certain amount of suspended particles and bubbles;
(2) The Doppler method has low measurement accuracy. Application Overview:
(1) The propagation time method is applied to clean, single-phase liquids and gases. Typical applications include factory discharge liquids, strange liquids, liquefied natural gas, etc;
(2) Good experience has been gained in the field of high-pressure natural gas applications;
(3) Doppler method is suitable for two-phase fluids with relatively low heterogeneous content, such as untreated sewage, factory discharge fluid, and dirty process fluid; Usually not suitable for very clean liquids. The thermal flowmeter sensor consists of two sensing elements, a speed sensor and a temperature sensor. They automatically compensate and correct for gas temperature changes. The electric heating part of the instrument heats the speed sensor to a constant value higher than the operating temperature,