What is the difference between turbine flowmeter and electromagnetic flowmeter

1. Different measurement principles 1. Principle of electromagnetic flowmeter The electromagnetic flowmeter measures the liquid flow rate by measuring the changes in the magnetic field signal of the conductive liquid flowing through the conductive tube. AC current is passed through the conductive tube, and the liquid passes through to generate an electromotive force. The electromagnetic flowmeter measures the voltage signal and current signal in the conductive tube, and calculates the instantaneous flow rate or total flow rate. 2. Principle of turbine flowmeter

A turbine flowmeter uses a liquid to rotate through a turbine and calculates the flow rate by measuring the rotation speed. The turbine flowmeter converts the flowing liquid into the corresponding mechanical torque or mechanical energy, and calculates the flow rate through the correlation measurement between the mechanical torque or mechanical energy and the measuring element.

Famet Electromagnetic Flowmeter

2. Different applicable scopes

1. Applicable scope of electromagnetic flowmeter Electromagnetic flowmeter is suitable for the measurement of conductive liquids, such as water, sewage, liquid anthraquinone, and salt solutions etc., and has little impact on changes in liquid temperature, pressure, etc. In practical applications, electromagnetic flowmeters are widely used in chemical industry, environmental protection, simulated water treatment and other fields. 2. Scope of application of turbine flowmeter

Turbine flowmeter is suitable for measuring non-corrosive liquids, such as oil, fuel, diesel, air, etc. The advantages of turbine flow meters are low cost, simplicity and ease of use, but they are greatly affected by the viscosity and density of the liquid, and are easily affected by coarse particles and scale.

Fameter turbine flowmeter

3. Different accuracy

1. Accuracy of electromagnetic flowmeter Electromagnetic flowmeter has the characteristics of high accuracy and long life, and the measurement accuracy can be as high as ±0.5% ~ ±0.2 %. The electromagnetic flowmeter has a wide measurement range, from 0.1 m/s to 20 m/s, which can meet the needs of various occasions. 2. Accuracy of turbine flowmeter The accuracy of turbine flowmeter is generally ±1.5% to ±3%, which is greatly affected by factors such as liquid viscosity, density, particle size, and flow rate fluctuations. Normally, turbine flow meters are used in industrial fields to measure low flow and low pressure, and they can replace the higher cost of related instrument measurements. In summary, although electromagnetic flowmeters and turbine flowmeters are both instruments for measuring flow, there are obvious differences in their measurement principles, scope of application, and accuracy. When users choose measuring instruments, they should make selections based on specific application scenarios and measurement needs.