CSL051
10Pages

Pyroelectric Infrared 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. (jfEJUIl Principle of Operation mmfowmtmz&ttziis ^©jfax^ju^-^nsiRUT, smftmizmtzmni,. zomtmn Material callferroelectrics 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. Floating electric charge Temp change Polarization change Thermal equilibrium condition Immediately after temp change

Element Type Compensated Single Omni-directional Quad General Purpose Dual ffig/z Sensitivity Detection from any angle of intrusion. Compensating element cancels the effects of rapid change in Best choice for human body detector. Highly sensitive to human body while remaining insensitive to ambient temperature change, vibration or optical noise. This is due to configuration which electrically cancels such Two independent dual element pyrosensors in combination. By using appropriate optics nuisance alarm from sources such as small animals are much reduce. Provides higher rejection against...

□ USE • \Tj£ • HfffiSiES F0V • Dimension • Equivalent Circuit Compensated Single Element Type General Purpose High Sensitivity SSflSfft FOV: Field of View

-^il^y>S Right element

D fgH'ttlit.i^ Reliability Standard

D ilU/ETiJ?£ Measuring Method Pyro sensor Black body Mechanical chopper Amplifier Recorder J- 3 V b°>^'JSl;g§J Chopping frequency D T V^OJllMiS^'tt Frequency response of amplifier □ JKIMi&'Uf'tt Frequency Characteristics Chopping Frequency D —1x0*1 x 3. ^ J H U .>< V h©fM^ Typical signal of dual element detector Detecting area Output signal

%^ls>X (J Is J\* Is > X) Optical lens (Fresnel lens) D fSvffl0S§f5!l Typical Application Circui Pyro sensor LP2902M : Quad operation amplifier □ ^X^Ai^nn&tftA Custom Products NICERA is aggressively challenging new pyrosensor model development. We are willing to offer for your special specification, element configuration and applications etc.

Related Products %iAR :Anti-Reflection coating (KMR^JJl) • %¥■ ~J 4) —GDMRMtfTf 14 Spectral Response of Window Materials Wave Length

To determine detection range and area. Custom designs are available for various coverage patterns and detection range. Dimensional Drawing Holizontal View Pattern Vertical View Pattern Horizontal View Pattern

• CdS^clZy*t CdS Photo Cells To activate light control device use with infrared sensor, when ambient condition is enough dark. ©SKMSIjfl1 : 500 [Lux] IS 3 B#PEHJ^±©Jf3fe$Cllll<!:i~'§ ®Pre-measurement condition : Exposed in 500 Lux for more than 3 hours. (2)Bf $S ift : 10 [Lux] ©3fe£:;MffLT10f^©!SJMI ®Dark Resistance value measured 10 sec. after shut off 10 Lux source. CD/ fi : 10~100[Lux]fm{;fclt5, IS^PWffiiftSft^ ©yvalue: Standard gradient rate ofresistance ranged by 10~100 Lux. (#i:|H5£©#SV^Ii9 ±0.1fc*t-S) (±0.1 unless otherwise stated) ■b _ logfo-logfc Rx : x [Lux] B#© BJjffiiitfli Photo...