Electromagnetic flowmeters, also known as mag meters, are highly versatile instruments for measuring flow in industrial and commercial applications.
They operate on Faraday's Law of Electromagnetic Induction,
where an electrically conductive fluid flowing through a magnetic field generates an electromotive force proportional to the fluid's velocity .
Here's an overview of their production, quality control, and advantages:
**Production:**
Electromagnetic flowmeters are manufactured with a meter body, typically a metal or plastic tube with a nonconducting liner,
and electronic converters that process the electric signal into usable data .
The production process involves precise assembly to ensure the accuracy and durability of the instrument.
Manufacturers constantly improve both the hardware and software to optimize performance specifications such as turndown and accuracy .
**Quality Control:**
Quality control is ensured through comprehensive diagnostic functions, including self-monitoring facilities and early detection of changes affecting the application .
Cyclic acquisition of electrode circuit and coil circuit parameters is performed using an integrated data logger.
A fingerprint database enables evaluations to be made with respect to quality and deviations from the initial calibration process.
Regular calibration maintenance is required to ensure continued accuracy .