Electromagnetic flowmeter is a commonly used flow measurement instrument that measures flow by measuring the induced electromotive force generated by fluid in a magnetic field.
Electromagnetic flowmeter is a commonly used flow measurement instrument that measures flow by measuring the induced electromotive force generated by fluid in a magnetic field. However, during use, sometimes the electromagnetic flowmeter will rise and fall suddenly, which may be confusing. This article will analyze the reasons why the electromagnetic flowmeter fluctuates high and low.
First of all, we need to understand the working principle of the electromagnetic flowmeter. When a fluid flows through a magnetic field, the charged particles in the fluid are acted upon by the Lorentz force, producing an induced electromotive force. The magnitude of this induced electromotive force is proportional to the flow rate of the fluid. Therefore, by measuring the magnitude of this induced electromotive force, we can obtain the flow rate of the fluid.
Famet Electromagnetic FlowmeterSo, why does the electromagnetic flowmeter go up and down suddenly? There may be several reasons for this:
1. Unreasonable instrument design
The internal structure of the electromagnetic flowmeter is complex. If the instrument design is unreasonable, the readings will be unstable and even There are sudden highs and lows. For example, the electromagnetic coil of the electromagnetic flowmeter cannot work properly, the sensing electrode is damaged, or the circuit connection is poor, etc., which will affect the stability of the reading.
2. Unstable fluid characteristics
The reading stability of the electromagnetic flowmeter is affected by the fluid characteristics. If the fluid viscosity is unstable, variables such as gas content, impurity content, and fluid temperature will change. If it is larger, the electromagnetic flowmeter reading will be unstable and fluctuate.
3. Electromagnetic interference
The reading stability of the electromagnetic flowmeter is also affected by electromagnetic interference. For example, during use, electromagnetic wave interference may come from other electronic equipment, communication equipment, etc., which will affect the stability of the electromagnetic flowmeter, resulting in unstable readings.
In response to the above problems, we can take the following measures to improve the reading stability of the electromagnetic flowmeter:
1. Choose a high-quality electromagnetic flowmeter. When choosing an electromagnetic flowmeter, you should choose a reliable brand and a product with stable quality to ensure that its internal structure is reasonably designed and manufactured in strict accordance with standards.
2. Analyze the fluid. When using an electromagnetic flowmeter, fluid analysis can be performed before the fluid is input, and its viscosity, gas content, impurity content, temperature and other parameters can be monitored to ensure the stability and accuracy of the fluid instrument.
3. Perform electromagnetic shielding. For electromagnetic interference problems, some technical measures can be taken, such as increasing electromagnetic shielding measures to reduce the electric field intensity and magnetic field intensity of interfering electromagnetic fields, thereby improving the reading stability of the instrument.
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