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Pyroelectric Infrared Sensor

Pyroelectric Infrared Sensor
10Pages

Catalog excerpts

NIPPON CERAMIC Co., Ltd. - 1 - Material call ferroelectrics absorb thermal energy which changes spontaneous polarization generating a surface electrical charge. The charge is proportional to polarizarion change. This phenomenon is called the pyroelectric effect. A pyrosensor using fine ceramic materials can detect even the slightest infrared energy charge, such as that from a human body. @NICERAiƒjƒbƒZƒ‰j‚É‚æ‚Á‚ÄŠJ”AŽÀ—p‰»‚³‚ê‚Ü‚µ‚½Å“dŒ^ÔŠOüƒZƒ“ƒT‚ÍA¢ŠEŠe‘‚ÅN“üŽÒŒx•ñ Ší‚ðŽn‚ß‚Æ‚µ‚½–h”Æ—p‹@Ší‚ð’†S‚ÉAŽ©“®ƒhƒAA—ˆ‹q•ñ’mŠíAÆ–¾‹@Ší“™‚Ö”‘½‚Ì—p‚³‚ê‚Ä‚¨‚èA‚»‚Ì ŽÀÑ‚ð‚à‚Æ‚ÉA‚•iŽ¿A’áƒRƒXƒg‚Åí‚ÉŽsê‚Ìƒj[ƒY‚É‰ž‚¦‚Ä‚Ü‚¢‚è‚Ü‚·B The pyrosensor, as developed and supplied to the market by NICERA, is being used world wide for many applications. For example, light switch control, visitor acknowledgement, security systems and burglar alarms. Utilizing our expertism gained by years of state of the art expertise, we satisfy marketing needs for high quality and low cost. @‹—U“d‘Ì‚ªÔŠOü‚ðŽó‚¯‚é‚ÆA‚»‚Ì”MƒGƒlƒ‹ƒM[‚ð‹zŽû‚µ‚ÄAŽ©”•ª‹É‚É•Ï‰»‚ð‹N‚±‚µA‚»‚Ì•Ï‰»—Ê‚É ”ä—á‚µ‚Ä•\–Ê‚É“d‰×‚ª—ã‹N‚³‚ê‚Ü‚·B‚±‚ÌŒ»Û‚ðÅ“dŒø‰Ê‚Æ‚¢‚¢‚Ü‚·B Å“dŒ^ÔŠOüƒZƒ“ƒT‚Í‹—U“d‘ÌƒZƒ‰ƒ~ƒbƒN‚ÌÅ“dŒø‰Ê‚ð—˜—p‚µ‚Äl‘Ì‚È‚Ç‚©‚ç”‚¹‚ç‚ê‚é‹Í‚©‚ÈÔŠOü‚ð ‰s‚ŒŸ’m‚µ‚Ü‚·B “®ìŒ´— Principle of Operation Å“dŒ^ÔŠOüƒZƒ“ƒT Pyroelectric Infrared Sensor •‚—V“d‰× Floating electric charge ‰·“x•Ï‰» Temp change •ª‹É•Ï‰» Polarization change ‰·“xˆÀ’èŽž Thermal equilibrium condition ‚s [‚j] ‰·“x•Ï‰»’¼Œã Immediately after temp change ‚s{¢‚s [‚j] { | { | { | { | { | { | { { | { { | { | { | { | { | { | { | | { | | { | ÔŠOü Infrared

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- 2 - “ú–{ƒZƒ‰ƒ~ƒbƒNŠ”Ž®‰ïŽÐ ƒGƒŒƒƒ“ƒgƒ^ƒCƒv Element Type •W€ƒ‚ƒfƒ‹ Recommended Model “Á@@’· Features —p@@“r Applications Žd@—l Specifications •âžŒ^ƒVƒ“ƒOƒ‹ Compensated Single ƒfƒ…ƒAƒ‹ Dual @‚ ‚ç‚ä‚éŠp“x‚©‚ç‚Ìl‚ÌN“ü‚É‘Î‚µ‚ÄAŒŸ’m‰Â ”\‚Å‚·BŠÂ‹«‰·“x‚Ì‹}Œƒ‚È•Ï‰»‚É‚¨‚¢‚Ä‚à•âž“d ‹É‚É‚æ‚èAo—Í‚ÍƒLƒƒƒ“ƒZƒ‹‚³‚ê‚Ü‚·B @l‘ÌŒŸ’mƒZƒ“ƒT‚Æ‚µ‚ÄÅ‚à‘½‚Žg—p‚³‚ê‚Ä‚¢‚Ü ‚·BˆÚ“®‚·‚él‘Ì‚ð‚æ‚è‚Š´“x‚ÉŒŸ’m‚µAŠÂ‹«‰· “x‚Ì•Ï‰»AU“®AŠO—Œõ“™‚É‘Î‚µ‚Ä‹‚¢ƒ^ƒCƒv‚Å‚·B Detection from any angle of intrusion. Compensating element cancels the effects of rapid change in temperature. ƒNƒƒbƒh Quad...

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Pyroelectric Infrared Sensor 10Pages

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Pyroelectric Infrared Sensor
10Pages