Water Conductivity Measurements Based On Electromagnetic Fields

An alternating voltage is applied in order to avoid electrolysis.

Water conductivity measurements based on electromagnetic fields. Jftn 9 9 16 31 8. Flow conductivity in mag flow meters one of the most important factors to consider when buying an electromagnetic flow meter is the conductivity of the flow. Ttl 14 6 676 m80. The electrical conductivity of water is measured by determining the resistance of the solution between two flat cylindrical electrodes separated by a fixed distance.

Technical note tn 6. Sensors based on electromagnetic fields can be isolated from the samples of water which are sensed. This is the standardized method of reporting conductivity. As the temperature of water will affect conductivity readings reporting conductivity at 25 c allows data to be easily compared 3.

Electromagnetic induction em as the name implies uses the principle of induction to measure the electrical conductivity of the subsurface. Specific conductance is usually reported in us cm at 25 c 6. Specific conductance is a conductivity measurement made at or corrected to 25 c 3. The most conductivity sensors are based on the measurement of an electric signal trough a liquid.

In general the conductivity is dependent on the concentration and type of ions and the temperature. In liquids the electrical conductivity is caused by positive and negative charged ions that are able to interact with an applied electrical field. Q6 what is the conductivity of distilled water. A primary alternating electric current of known frequency and magnitude is passed through a sending coil creating a primary magnetic field in the space surrounding the coil including underground.

We can also find sensors based on the alteration of a magnetic field. When you are in the process of sizing and specifying the magnetic flow meter you want it is crucial to consider whether the flow you want to measure has high electrical conductivity. Electromagnetic terrain conductivity measurement. Thus the resistance is measured by a conductivity meter.