passive infrared detector

См. также в других словарях:

• Passive infrared sensor — A Passive InfraRed sensor (PIR sensor) is an electronic device that measures infrared (IR) light radiating from objects in its field of view. PIR sensors are often used in the construction of PIR based motion detectors (see below). Apparent… …   Wikipedia

• Infrared — For other uses, see Infrared (disambiguation). An image of two people in mid infrared ( thermal ) light (false color) …   Wikipedia

• Bat detector — The term bat detector is usually used to describe a device used to detect the presence of bats by converting their echolocation ultrasound signals to audible frequencies as they are emitted by the bats. There are other types of detector which… …   Wikipedia

• Motion detector — A motion detector attached to a garage A motion detector is a device for motion detection. That is, it is a device that contains a physical mechanism or electronic sensor that quantifies motion that can be either integrated with or connected to… …   Wikipedia

• Radar detector — A radar detector, sometimes called a fuzz buster, is a passive electronic device used by motorists to determine if their speed is being monitored by law enforcement agencies via a radar unit, and thereby, potentially avoiding prosecution for… …   Wikipedia

• Smoke detector — A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a… …   Wikipedia

• LIDAR detector — A LIDAR detector is a passive device designed to detect the infrared emissions of law enforcement agencies LIDAR speed detection devices and warn motorists that their speed is being measured.A limitation of LIDAR is that it cannot be used while a …   Wikipedia

• Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …   Wikipedia

• PID — stands for a number of things, including those mentioned below.Medicine*Prolapsed intervertebral disc, commonly called a herniated disc *Primary immune deficiency *Pelvic Inflammatory Disease (or Pelvic Inflammatory Disorder), an infection and… …   Wikipedia

• Iron Fist active protection system — Iron Fist is the Israel Military Industries (IMI) hard kill active protection system (APS), with a modular design allowing adaptation to a range of platforms ranging from light utility vehicles to heavy armoured fighting vehicles. The concept was …   Wikipedia

• Thermography — Infrared Thermography, thermal imaging, or thermal video, is a type of infrared imaging science. Thermographic cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 900 ndash;14,000 nanometers or 0.9 ndash;14 µm) …   Wikipedia