Digital pH meter

Digital pH meter

1. Digital pH meter Presented By: Arpan Bose Roll no: 1830166 Date: Subject:PMI

2. A pH meter is an electronic device used for measuring the ph(acidity of alkanity) of a liquid (or semi solids substances using special probles) A typical pH meter consists of a special measuring probe(a glass electrode ) connected to an electonic meter that measures and displays the pH reading

3. The probe is a rod like structure usually made up of glass At the bottom of the probe is a bulb ,the bulb is the sensitive part of the probe that contains the sensor To measure the pH of a solution the probe is dipped into the solution The probe

4. A pH meter measures the concentration of the hydrogen ions[H + ] in a solution An acidic solution has greater potential to produce an electric current under certain conditions It consists of a pair of electrode connected to a meter capable of measuring small voltages. Working

5. It measures the voltage produced by the solution whose acidity is to be found, compares it with the voltage of a known standard solution and uses the difference in voltage between them to calculate the difference in pH