What kind of technology does an infrared barrier device utilize?

An infrared barrier device utilizes infrared technology, which functions by emitting and detecting infrared light beams. When an object, such as a person or another obstruction, interrupts these beams, the device triggers a response, often related to safety measures like stopping machinery or preventing access. This technology is especially effective for creating a safety zone around hazardous machinery where physical barriers may not be feasible.

Infrared sensors maintain a non-contact mechanism, allowing for quick responses without requiring physical force, which enhances workplace safety. This technology is widely used in various applications, including industrial automation and security systems, keeping personnel safe from potential hazards.

Other options like pressure sensors, sound detection, or mechanical restrictions represent different types of safety technologies that do not directly utilize infrared technology, focusing instead on physical force, auditory signals, or physical barriers, respectively.