A laser detector is a passive device designed to detect infrared emissions. A laser pulse originates from a transmitter and channels to an object. The light particles (photons) are then scattered back from the object to the receiver. Laser detectors can survey the distance to a target by measuring the laser pulses reflected back from and object to the transmitter. Laser detectors are also called lidar detectors. They are cost-effective and are easier to operate than radar detectors.
Laser detectors have a variety of applications. They are used for condition monitoring purposes in factories and plants, where smog, fog and particle detection is necessary. They are also commonly used in incident or event monitoring, to detect beam breaking in laser alarm systems, for example. Laser detectors are also important in the manufacturing industry where optical sensing and transmissive telemetry equipment require device monitoring and event detection mechanisms.
Types of laser detectors include charge-coupled devices (CCD), complementary metal oxide semiconductors (CMOS), position-sensitive detectors (PSD), and photoelectric sensors. Laser detectors can operate on their own or simultaneously (two or more) within a particular machine component.