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A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.
Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.
A camera trap with a passive infrared (PIR) sensor. A camera trap is a camera that is automatically triggered by motion in its vicinity, like the presence of an animal or a human being. It is typically equipped with a motion sensor—usually a passive infrared (PIR) sensor or an active infrared (AIR) sensor using an infrared light beam. [1]
Smartphone optical proximity sensor without the phone's casing. The sensor itself is the black object on top of the yellow block below it; this block is actually a printed circuit board serving as an interposer. A proximity sensor (often simply prox) is a sensor able to detect the presence of nearby objects without any physical contact.
The Telemark is a ballroom dance step; in waltz competition, it is in the Silver syllabus. Telemarks are reverse turns where the follower (the lady) does a heel turn as the leader (the man) travels around her. There are similar Telemarks in foxtrot and quickstep. [1]
Wheel speed sensor; Airbag sensors; Automatic transmission speed sensor; Brake fluid pressure sensor; Camshaft position sensor (CMP) Cylinder Head Temperature gauge; Engine crankcase pressure sensor; Exhaust gas temperature sensor; Fuel level sensor; Fuel pressure sensor; Knock sensor; Light sensor; MAP sensor; Mass airflow sensor; Oil level ...
A count may also be called a step, as contra dance is a walking form, and each count of a dance typically matches a single physical step in a figure. Typical contra dance choreography comprises four parts, each 16 counts (8 measures) long. The parts are called A1, A2, B1 and B2. This nomenclature stems from the music: Most contra dance tunes ...
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