Limits...
E.M.I Effects of Cathodic Protection on Electromagnetic Flowmeters

View Article: PubMed Central

ABSTRACT

Electromagnetic flowmeters are used to measure the speed of water flow in water distribution systems. Corrosion problem in metal pipelines can be solved by cathodic protection methods. This paper presents a research on corruptive effects of the cathodic protection system on electromagnetic flowmeter depending on its measuring principle. Experimental measurements are realized on the water distribution pipelines of the Izmir Municipality, Department of Water and Drainage Administration (IZSU) in Turkey and measurement results are given. Experimental results proved that the values measured by the electromagnetic flowmeter (EMF) are affected by cathodic protection system current. Comments on the measurement results are made and precautions to be taken are proposed.

No MeSH data available.


Electrical insulation test.
© Copyright Policy
Related In: Results  -  Collection


getmorefigures.php?uid=PMC3756713&req=5

f5-sensors-07-00075: Electrical insulation test.

Mentions: Figure 5 shows the electrically insulated test set-up. Short circuit is occurred between two reciprocal flanges. When a short circuit occurs between two flanges, cathodic protection current flows through EMF sensor. This event is an undesired problem and causes measurement error.


E.M.I Effects of Cathodic Protection on Electromagnetic Flowmeters
Electrical insulation test.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3756713&req=5

f5-sensors-07-00075: Electrical insulation test.
Mentions: Figure 5 shows the electrically insulated test set-up. Short circuit is occurred between two reciprocal flanges. When a short circuit occurs between two flanges, cathodic protection current flows through EMF sensor. This event is an undesired problem and causes measurement error.

View Article: PubMed Central

ABSTRACT

Electromagnetic flowmeters are used to measure the speed of water flow in water distribution systems. Corrosion problem in metal pipelines can be solved by cathodic protection methods. This paper presents a research on corruptive effects of the cathodic protection system on electromagnetic flowmeter depending on its measuring principle. Experimental measurements are realized on the water distribution pipelines of the Izmir Municipality, Department of Water and Drainage Administration (IZSU) in Turkey and measurement results are given. Experimental results proved that the values measured by the electromagnetic flowmeter (EMF) are affected by cathodic protection system current. Comments on the measurement results are made and precautions to be taken are proposed.

No MeSH data available.