气敏传感器是传感器领域的一个重要分支，它可以感受外界气氛的变化并能将其转变为可利用的信号，从而实现对特定种类的气体的检测。

A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically shut down. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life, such as humans or animals.