Working principle of thermal mass flow meter
Release time：
20 Apr,2022
Summary
Thermal mass flow meters are a type of thermal pneumatic instrument used to measure and calculate the temperature of fluid media. They are mainly composed of differential pressure transmitters, electromagnetic flow converters, etc., and can directly display or record flow rate, liquid level, and density values, and can be networked with the host computer to realize remote data transmission. Thermal mass flow meter Suitable for measuring the average temperature rise of working media in various viscosities such as steam and air, such as feeding in petroleum and chemical production processes, powder in dust removal pipelines, coal slurry pipelines, etc. Thermal mass flow meters have a simple structure, are easy to maintain, and can be installed and used without standard parts, so they are widely used in various fields of the national economy.
Working principle of thermal mass flow meter
In a thermal mass flow meter, a metal or other material with high density and good pressure-transmitting performance is installed in the pipeline as a temperature-measuring medium. When the medium to be detected passes through, a transient small potential difference is formed between the probe and the lining due to the electrostatic induction caused by the obstruction. This potential difference changes periodically with the change in the diameter of solid particles in the fluid to be detected. This oscillating signal caused by the transmission and conversion of the electric field is called frequency (also called pulse); after amplifying this signal and recording it using a special instrument, the level information can be obtained.
A superior Thermal mass flow meter Must meet the following conditions:
1. Accurate and stable
2. Strong anti-interference
3. Corrosion resistant
4. Explosion-proof and safe
5. Beautiful appearance
6. Easy to maintain
7. Reasonable price
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