How does a gas lighter work? Part-2

Part-2 Converting Mechanical Vibration into Electricity

Some Fine Ceramics (also known as “advanced ceramics”) possess a unique property allowing them to convert mechanical shock or vibration into electrical signals, and vice versa. These materials, called piezoelectric ceramics, are built into a wide variety of products. One example is the stovetop burner used in a typical kitchen gas range that is ignited by converting mechanical shock into an electrical arc that lights the gas. The clicking noise you hear when you turn the control dial is the sound of a piezoelectric ceramic being struck to induce the necessary mechanical shock. Some lighters also use this mechanism. Applications: Piezoelectric ignition units designed to light gas burners.