PIR Meaning and
Definition
-
PIR, also known as passive infrared sensor, refers to an electronic device that detects motion or presence of an object based on emitted infrared radiation. It is commonly used in security systems, automatic lighting systems, and other applications where motion detection is required.
The PIR sensor consists of one or more sensors that detect changes in infrared radiation levels. It operates on the principle that living organisms emit heat in the form of infrared radiation. When a person or an object moves within the range of the sensor, it detects the change in the pattern of infrared radiation and triggers a response.
The detection range of a PIR sensor can vary depending on the model and design, typically ranging from a few meters up to tens of meters. It is capable of detecting motion in a specific field of view, commonly referred to as the sensor's detection angle. The response time of a PIR sensor is usually quite fast, allowing it to promptly detect motion and trigger the desired response.
In security systems, PIR sensors are often used to trigger alarms or turn on surveillance cameras when an intruder is detected. In automatic lighting systems, they are used to switch on lights when someone enters a room and switch them off after a certain period of inactivity.
The PIR sensor offers a cost-effective and reliable solution for motion detection due to its simplicity, quick response time, and relatively low power consumption.
Common Misspellings for PIR
- p-ir
- 0pir
- p0ir
- p9ir
- pi9r
- p8ir
- pi8r
- pi5r
- pir5
- pir4
- ppir
- pi r
Infographic
Add the infographic to your website:
