Question

Many gas appliances such as ovens and heaters use a small flames to ignite the main burner. To make sure the small flame is burning, a temperature-measuring device is inserted into the flame. What is the most suitable device to use?

Answer 1

The thermocouple is the most suitable device used in flame temperature measurements due to several reasons like; low cost, high measurement accuracy (error in the range of 1–5%), very small dimensions, high resistance on temperatures and gases, etc.