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PIR detectors


Passive infrared detectors (PIR) are most commonly used detection device. Thanks to low price and high reliability, easy installation and configuration those detectors gained dominating position on security market. Piroelectric sensor is used for receiving signals from surrounding environment. Piroelectric effect lies in change of polarization (appearing of electric charge) in material caused by change of its temperature. Detection of objects in protected area takes place in infrared spectrum. PIR detector registers changes in temperature caused by intruder, whose body temperature usually differs from background temperature and when specific dynamic of those two temperatures occurs, detector generates alarm signal. In alarm systems it is not important to render three or two-dimensional temperature distribution only changes in distribution are used for analysis.

Passive infrared detectors are not flawless. Vital and unwanted phenomenon that distorts detectors proper functioning are changes of temperature distribution caused by natural causes such as: drafts, insolation, sources of artificial light, animals etc. False alarms generation by detection devices based only on passive infrared technology is main problem if you take systems functionality under consideration. Hence new technical and construction solutions, that are supposed to improve quality of detection, appear on market.

Volta company has rich offer of passive infrared detectors, created with new technological trends. Advanced signal processing algorithms: FSP, MAPII, QMAP, area analysis, AutoTest, AutoPulse, TriTech decide about quality and functionality of passive infrared detectors, offered by Volta.


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Last modification date:  2019-09-20 , 3:41:44

Products, security systems, control panels, IP cameras, CCTV, Warsaw, monitoring, intercom, access control

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Volta Warsaw. Alarm and fire detection systems - CCTV, motion detectors, cameras, exit buttons and fire buttons, outdoor motion detectors, doorphones, monitoring, leakage detectors and alarm devices. Also sales via web.

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