1300640321

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1300640321, widely known as passive infra-red sensor, is widely used in various security detection applications such as burglar alarm, access control, fire alarm, and presence detection.

PIR detectors are highly sensitive, low cost, low power consumption, and low false alarm rate sensing devices. Compared with other types of sensors, PIR has the advantages of portability, privacy, small size, and easy installation. It also has the characteristics of sensing all kinds of infrared radiation, and generating alarms with a certain period and frequency.

A PIR detector primarily consists of two parts: a reflective optical head and a thermovision sensor. The reflective optical head consists of two matched components: a Fresnel lens with concentric circular grooves and a pyroelectric detector that senses infrared radiation. The Fresnel lens condenses incoming IR energy onto the active area of the pyroelectric detector, absorbing energy at the same time. When the energy changes, the PIR detector will produce a corresponding electrical signal to trigger an alarm.

PIR detectors use thermal imaging technology to detect the heat emitted from an object or person, or the difference between the temperature of the environment and the target, and instantly turn this difference in temperature into an electronic signal to trigger an alarm. The PIR sensor is usually installed on the ceiling of the guard room or the corner of a wall. When an intruder enters its sensing range, the thermal imaging technology immediately detects the infrared body radiation of the intruder, and generates an electrical signal to trigger an alarm.

The working principle of a PIR detector is that it emits a wave beam to the target through an infrared lens. When an intruder enters its sensing range, the thermal imaging technology immediately detects the infrared body radiation of the intruder, and generates an electrical signal to trigger an alarm. In order to increase the sensitivity of the PIR detector, the output of the PIR element is amplified by a field effect transistor. When the output of the FET reaches a certain voltage, the output signal will be output to trigger the alarm. At the same time, the reset signal rises to reset the PIR element and thus finish the whole detection process.

1300640321 is widely used in various security applications such as residential and commercial intrusion alarms, access control, fire alarms, and presence detection. It can detect faster, further and more precisely than traditional microwave and ultrasonic detectors. In addition, it can also detect analog signals, digital signals, and temperature, such as analog signals from smoke detectors, humidity sensors and other equipment to trigger alarms.

1300640321 is becoming increasingly popular in the security industry due to its low cost, low power consumption, small size, and false alarm rate. In addition, its easy installation and wireless transmitting technology make it a great choice for do-it-yourself projects. With its increasing popularity, more applications and uses of 1300640321 sensor will be discovered and utilized.

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