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Description of uncertainty in flow measurement

Uncertainty of electromagnetic flowmeter for flow measurement
The difference between the measured result and the measured true value is called the measurement error. Any measurement will inevitably have a cause that affects the measurement, so there is always a measurement error.
Due to the unknown nature of the true value, the error is unknown, but the uncertainty of the measurement is estimable. Uncertainty is an estimate of the true value being measured over a range of magnitudes. Therefore, whether it is the previous flowmeter, or the current electromagnetic flowmeter, vortex flowmeter, there will be certain errors, but we believe that with the advancement of technology, this error will become smaller and smaller.

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