What is chemical sensor?

A chemical sensor is a device that detects and quantifies the presence of specific chemical substances in a given environment. It typically consists of a sensing element that interacts with the target analyte, producing a measurable response, such as a change in electrical signal, optical properties, or mass. These sensors are widely used in various applications, including environmental monitoring, industrial process control, and medical diagnostics. The effectiveness of a chemical sensor depends on its sensitivity, selectivity, and response time.