glass electrode ph sensor Nederland

Did you ever wonder how scientists determine whether a drink is sour, like lemonade, or sweet, like soda? This is done through a specialized tool called a pH meter! This helps us determine if a liquid is acidic — has a sour taste — or alkaline — feels more like soap. The glass electrode pH sensor is one of the most widely used pH measuring tools. This sensor is cool because it can detect very small molecules in the solution known as hydrogen ions. When it senses these ions, it transforms that data into numbers visible on a screen. In this article, we will review the functioning of the glass electrode pH sensor, its advantages, disadvantages, applications, and the correct use of the sensor to take accurate readings.

A glass electrode pH sensor somewhat resembles a tubular piece of thin glass. Within this tube is a special fluid called an electrolyte along with a thin wire that runs through it. The wire's exterior is coated with a special layer of glass that allows it to test various liquids. Putting the glass sensor into a liquid, you have the small hydrogen ions in that liquid touching the glass. This contact induces an energy potential difference between the inside wire and the outer glass surface. The pH meter can read and display this signal, powered by the difference in energy. You are being trained on how to know the pH level of the liquid on screen.