Design of a Sensor to Detect Conductivity Change

  • Sang-Hoon Seo (Department of Environmental Engineering, Dongseo University) ;
  • Bye (Department of Chemical Engineering, Dongseo University, Department of Environmental Engineering, Dongseo University, Department of Chemical Engineering, Dongseo University)
  • Published : 1998.04.01

Abstract

A sensor was designed to detect backmixing of vessel fluid into the feedpipe. The sensor was composed of electrodes and a designed electric circuit. The electrodes were installed inside the feedpipe and tap water was flowed into the feedpipe. When NaC1 solution in the vessel penetrate into the feedpipe due to high agitator speed, the conductivity change is sensed by the electrodes and the resultant output signal is recorded by a pen-chart recorder. The electric circuit was designed to show maximum sensitivity. The resolution of this designed sensor was on the order of 10-s mole/l.

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