When the electromagnetic flowmeter is at full scale, its output signal size should be equal to the maximum output signal of the electromagnetic flowmeter.
1. Introduction to the principle of electromagnetic flowmeter
Electromagnetic flowmeter is a flowmeter based on Faraday's electromagnetic induction principle. When liquid passes through the electromagnetic flowmeter pipe, a voltage signal is generated between the two electrodes when flowing through the magnetic field, which is proportional to the liquid flow rate. Therefore, the flow rate of a liquid can be determined by measuring the voltage signal as the liquid passes through the pipe.
2. The output signal size of the electromagnetic flowmeter
When the electromagnetic flowmeter is at full scale, its output signal size should be equal to the maximum output signal of the electromagnetic flowmeter. Under normal circumstances, the full-scale output signal of an electromagnetic flowmeter should be constant, even if the liquid pressure or temperature changes.
3. Factors affecting the output signal of the electromagnetic flowmeter
Although the output signal of the electromagnetic flowmeter should be constant, in practical applications, its output signal size may be affected by the following Influence of factors:
1. Influence of temperature and viscosity: When the temperature or viscosity of the liquid changes, its conductivity will also change, thus affecting the output signal of the electromagnetic flowmeter.
2. Influence of electrode polarity: The electrode of the electromagnetic flowmeter must be consistent with the direction of liquid flow, otherwise it will affect the output signal of the electromagnetic flowmeter.
3. Internal failure of the electromagnetic flowmeter: Damage or failure of the internal components of the electromagnetic flowmeter will also affect its output signal.
4. Measurement environmental factors: The measurement environment of the electromagnetic flowmeter may also affect its output signal. For example, excessively high or low humidity, electromagnetic interference, etc.
Conclusion: The electromagnetic flowmeter is a reliable flow meter. When it is at full scale, its output signal should be constant. If the output signal size of the electromagnetic flowmeter changes, its interior needs to be inspected and repaired. At the same time, when using an electromagnetic flowmeter, attention should be paid to the impact of external environmental factors on its output signal.
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