A device suitable for connection to a circuit having a sensor that responds to a physical stimulus such as heat or smoke.

Refers to the actual component of the sensor system that interacts with reflected or emitted energy. For film - based systems this is the individual silver halide crystals of the film emulsion.

A sensor used for the detection of some form of energy. Usually this term is used to refer to the device used in nuclear logging tools to detect neutrons and gamma rays. See scintillation counter and Geiger-Mueller counter.

A sensor that translates the state of a classifier environment into a message that is suitable for posting to the message list of the classifier system.

a special kind or role of sensor

The portion of the sensing equipment which detects the incoming energy stream being monitored by the sensor. Sometimes this term is incorrectly used interchangeably with sensor.

Can be any kind of a sensor used to detect a form of energy, but usually refers to nuclear detectors, such as scintillation crystals.

see sensor