PIR Sensor Module
Owning very strong R&D Center, Senba can research and develop the passive infrared sensorindependently. Among those chinese pirsensor manufacturers, Senba Sensorhas become the first owner of this special technology enterprise in China. We are awarded as "Henan high-tech enterprises" in 2006 and awarded as "Notional high-tech enterprises" in 2012.
Pyroelectric sensor is a kind of sensor, also known as human body infrared sensor, used for life burglar alarm, visitor notification, etc., the pir sensor working principleis to release the charge through the amplifier into a voltage output.Senbaoffers a wide range of PIR Sensor Module products including human motion sensor module, infrared pir motion sensor module, pir motion detector moduleand so on.
The piezoelectric ceramic dielectric can maintain a polarization state after being polarized, which is called spontaneous polarization. Spontaneous polarization decreases with increasing temperature and the temperature drops to zero at the Curie point. Therefore, when the material is exposed to infrared radiation and the temperature rises, the surface charge will decrease, which is equivalent to releasing a part of the charge, so it is called pyroelectric. The discharged charge is converted to a voltage output by an amplifier. This is how the pyroelectric infrared pir motion sensor detector moduleworks.
When the radiation continues to act on the pyroelectric element and its surface charge is balanced, the charge is no longer released. Therefore, the human sensor module pyroelectric infraredcannot detect constant infrared radiation.
Pyroelectric sensor working principle: The human body has a constant body temperature, generally at 37 degrees, so it will emit infrared rays with a specific wavelength of about 10UM. Passive infrared probes work by detecting infrared rays of about 10UM emitted by the human body. The 10 UM infrared rays emitted by the human body are enhanced by the Philippine filter and collected on the infrared sensing source. The infrared sensing source usually adopts a pyroelectric element, which loses the charge balance when receiving the temperature change of the infrared radiation of the human body, and discharges the charge outward, and the subsequent circuit can generate an alarm signal after being detected and processed.
Pyroelectric effect: When some crystals are heated, an equal number of oppositely charged charges will be produced across the crystal. This phenomenon of polarization due to thermal changes is called pyroelectric effect.
Fresnel lens: According to the Fresnel principle, the Fresnel lens is divided into two types: refractive and reflective. Its role is to focus and refract (reflect) the pyroelectric infrared signal on the PIR. Second, the detection area is divided into a number of bright areas and dark areas, so that moving objects entering the detection area can produce a modified pyroelectric infrared signal on the PIR in the form of temperature changes, so that the PIR can generate a change electrical signal. The sensitivity of the pyroelectric human infrared sensor moduleis greatly increased.
FAQ
Is Wave Soldering Recommended?
Wave soldering is likely to cause degradation of product performance. Wave soldering is not recommended. Generally we recommend to solder by hand.
Can PIR Sensor Detect Animals?
PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.
Do PIR Sensors Work Through Glass?
No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.
What Is The Package?
What are the Factors that Affect the Performance of the Product?
Send product request
Other supplier products
 |
Linear Light Sensor | Linear Light Sensor, we also call it photoresistor light sensor. The chip integrated inside is very sensitive to light changes. So normally it is u... |
 |
4pins Digital Smart Pyroelectric Detector BS412 | Senba Sensing Technology Co.,Ltd. is a professional pir sensor manufacturers. We provide Infrared Thermopile Sensor, Digital PIR Sensor and so on. ... |
 |
6pins Digital Passive Infrared Sensor BS612 | Senba Sensing Technology Co.,Ltd. is a professional china sensor manufacturer. We provide Infrared Thermopile Sensor, Digital PIR Sensor, passive i... |
 |
Diam 5MM Photoresistor φ5series for Led Dimmer | Overview Photoresistor is a resistor which made of semiconductor material,and the conductance changes with luminance variation .The photoresistor c... |
 |
Plastic Fresnel Lens S9008 Used in Alarm System | Plastic Fresnel LensS9008 Used in Alarm System Overview The fresnel lens is a optical element, one side is smooth, another side is by a ring a pa... |
Same products
 |
T60404-N4646-X400 | Seller: 双为（香港）科技有限公司 | Manufacturer: Vacuumschmelze Product Category: Board Mount Current Sensors ... |
 |
Hangzhi CAFR-A-NP Series PCB Current sensor | Seller: Shenzhen Hangzhi Precision Electronics Co., Ltd | The CAFR-A-NP series is a current sensor developed by Hangzhi that can be soldered on the PCB cir... |
 |
Hangzhi CIT High Precision Split Core current transducer | Seller: Shenzhen Hangzhi Precision Electronics Co., Ltd | The CIT series high precision split core current transducer is developed by Hangzhi based on the ... |
 |
BMS300 Automotive Current Sensor Transducer | Seller: Shenzhen Hangzhi Precision Electronics Co., Ltd | BMS300 fluxgate transducer is made of an excitation magnetic ring and a control circuit. Under no... |
 |
AIT6000-SG High-Precision Current Sensor Transducer, Accuracy 50ppm | Seller: Shenzhen Hangzhi Precision Electronics Co., Ltd | AIT6000-SG has a high gain and measurement accuracy in the full bandwidth range, due to the appli... |
