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Comparison of several flowmeters in common use

Date:2019-12-04 source:

When the fluid flows through the pressurized flow time, the fluid turns the motor rotor.The rotational speed of the motor rotor is related to the velocity of the fluid.According to the average water flow of the fluid experienced by the rotor of the motor, the total flow or total output is calculated.The pressurized flowmeter can accurately measure clean liquids and vapors.The pressurized flowmeter will also cause unrepairable working pressure deviation and the components must be moved.

Comparison of several flowmeters in common use

Electromagnetic flowmeterComparison of several flowmeters in common use

Electromagnetic flowmeter

The velocity of a conductive fluid flowing through a magnetic field can be obtained by measuring the working voltage.Electromagnetic flowmeter has no mobile components and will not be harmed by fluid.The conductivity of the liquid is measured with great accuracy when the tube is full.An electromagnetic flowmeter can be used to measure the water flow of a slurry fluid.

Ultrasonic flowmeter

Diffusion time method and doppler effect method are commonly used in ultrasonic flowmeters to measure the average velocity of the fluid.Like any rate meter, it is a gauge that measures the total volume flow.This is without block flowmeter, if ultrasonic intelligence transmitter installation is measured outside pipeline, need not insert.It is suitable for almost all liquids, including slurry, high accuracy.But contamination in the pipeline can compromise accuracy.

Vortex flowmeter

The vortex flowmeter is to place a non-flowing vortex generating body in the fluid, and the velocity of the moving vortex is proportional to the velocity of the fluid, so as to calculate the total volume flow.Vortex flowmeters are used to measure liquids, vapors, or vapors.It has no moving parts, no stain problems.Vortex flowmeters cause noise and require the fluid to have a high water flow rate to cause vortexes.

Quick-heat quality flowmeter

The rate of flow is measured in terms of the increase in the temperature of the measured fluid or the decrease in the heat controller.The quick-heat quality flowmeter has no moving members or holes and can accurately measure the total flow of the steam body.The thermal quality flowmeter is one of the few gauges that can measure mass flow.

Coriolis flowmeter

This type of flowmeter USES a vibrating fluid tube that causes a deviation from the mass flow rate to carry out the measurement.The coriolis flowmeter can be used to measure the mass flow of a liquid, slurry, vapor, or vapor.High accuracy.But carry out timely maintenance on the pipe wall to avoid erosion.

Basic principles of measurement: Faraday's law of electromagnetic induction states that an electrical conductor's physical activity in an electromagnetic field converts magnetic induction into a potential difference.Choose the basic principle of electromagnetic induction measurement, that is, fluid is the conductor of electricity in fitness exercise.The magnetic induction potential difference is proportional to the water flow and is tested by two measuring levels. Then the intelligent transmitter expands it and calculates the total flow according to the sectional area of the pipeline.The stable electromagnetic field is caused by the alternating current of the power switch with alternating rotation.The measuring system software consists of an intelligent transmitter and a controller.

Porcelain city Shanghai instruments co., LTD. Is China's first tiny elliptical gear manufacturers, by MrStone (Siemens) senior engineers involved research and development, with independent intellectual property rights, completely using Siemens CNC processing center production and processing equipment, to ensure the minimum flow rate of 0.1 ml/min, which is rare in the world, the precision is over 90%.


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