EMI effects of cathodic protection on electromagnetic flowmeters

Creative Commons License

Gündoğdu S., Sahin Ö.

SENSORS, cilt.7, sa.1, ss.75-83, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 7 Sayı: 1
  • Basım Tarihi: 2007
  • Doi Numarası: 10.3390/s7010075
  • Dergi Adı: SENSORS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.75-83
  • Anahtar Kelimeler: corrosion, cathodic protection methods, electromagnetic flowmeter (EMF), electromagnetic interference (EMI)
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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.