1. Measure liquid with lower conductivity
It is now possible to measure liquids that are 2 to 3 orders of magnitude lower than the conductivity threshold of traditional electromagnetic flowmeters, such as glycerol, ethylene glycol, etc., which were previously undetectable. In addition, this type of instrument has almost no slurry noise and flow noise, nor does it produce noise caused by electrode surface effects. The inner surface of the lining is covered with a non-conductive layer such as grease or a thin layer of insulative dirt that will not affect the measurement.
2, non-full tube electromagnetic flowmeter
The traditional electromagnetic flowmeter can only measure the full-pipe liquid flow. The non-full-tube electromagnetic flowmeter is used in the field of sewage discharge with free surface natural flow and improves the measurement accuracy in this field. The flow error of traditional non-full pipe or open channel flow is reduced from ± (3 ~ 5)% FS to ± (1 ~ 2)% FS.
3, two-dimensional (direction) electromagnetic flow meter and multiple measurement point plug-in electromagnetic flowmeter
The ship's electromagnetic speedometer placed outside the hull is a prototype of a plug-in electromagnetic flowmeter. Later, plug-in electromagnetic flowmeters have been developed in large and medium-sized pipelines and are also used in open channels, called ELECTROMAGNETIC CURRENT METER. However, in river flow or hydraulic test models, not only the flow velocity but also the flow direction must be known. The two-dimensional electromagnetic flow rate, also known as the vector velocity meter, enables the electromagnetic flow meter family to enter hydrological test applications.
4, low-power and two-wire electromagnetic flowmeter have a faster development
The two-wire system does not require an additional excitonic loop. Only 4MADC current is used to provide the power required by the instrument, usually only tens of milliwatts. Low-power electromagnetic flowmeters make it possible to use dry batteries or solar cells, making it easier to install electromagnetic flowmeters in places where there is no mains supply.
In addition, the plug-in electromagnetic flowmeter also refers to the design idea of ​​the uniform velocity tube. Multiple electromagnetic flow velocity measurement units are placed on the insertion rod to improve the measurement accuracy, so that the plug-in electromagnetic flow is in a favorable position for the large tube application.
It is now possible to measure liquids that are 2 to 3 orders of magnitude lower than the conductivity threshold of traditional electromagnetic flowmeters, such as glycerol, ethylene glycol, etc., which were previously undetectable. In addition, this type of instrument has almost no slurry noise and flow noise, nor does it produce noise caused by electrode surface effects. The inner surface of the lining is covered with a non-conductive layer such as grease or a thin layer of insulative dirt that will not affect the measurement.
2, non-full tube electromagnetic flowmeter
The traditional electromagnetic flowmeter can only measure the full-pipe liquid flow. The non-full-tube electromagnetic flowmeter is used in the field of sewage discharge with free surface natural flow and improves the measurement accuracy in this field. The flow error of traditional non-full pipe or open channel flow is reduced from ± (3 ~ 5)% FS to ± (1 ~ 2)% FS.
3, two-dimensional (direction) electromagnetic flow meter and multiple measurement point plug-in electromagnetic flowmeter
The ship's electromagnetic speedometer placed outside the hull is a prototype of a plug-in electromagnetic flowmeter. Later, plug-in electromagnetic flowmeters have been developed in large and medium-sized pipelines and are also used in open channels, called ELECTROMAGNETIC CURRENT METER. However, in river flow or hydraulic test models, not only the flow velocity but also the flow direction must be known. The two-dimensional electromagnetic flow rate, also known as the vector velocity meter, enables the electromagnetic flow meter family to enter hydrological test applications.
4, low-power and two-wire electromagnetic flowmeter have a faster development
The two-wire system does not require an additional excitonic loop. Only 4MADC current is used to provide the power required by the instrument, usually only tens of milliwatts. Low-power electromagnetic flowmeters make it possible to use dry batteries or solar cells, making it easier to install electromagnetic flowmeters in places where there is no mains supply.
In addition, the plug-in electromagnetic flowmeter also refers to the design idea of ​​the uniform velocity tube. Multiple electromagnetic flow velocity measurement units are placed on the insertion rod to improve the measurement accuracy, so that the plug-in electromagnetic flow is in a favorable position for the large tube application.
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