6 Types of Occupancy Sensors Explained
Electronic sensor placement has several uses, including improving the home and office security and help reduce energy consumption, especially the lighting, the room is empty. Captains usually combine sensor motion detector with an electronic timer and light button to turn on and turn off lights when they are not needed. For safety, they can be connected to an alarm. Learn more about the 6 types of sensor placement described below.
Captain Sensor Type
Three types of motion detectors: IR emitter (PIR), ultrasonic emitters and microwave passive, coupled with various devices to make the 6 types of occupancy sensors.
Passive Infrared (PIR) Detector
PIR detectors, the simplest type, had the face of the sensor that measures the air temperature in different rooms. PIR sensors are considered passive because they do not emit any light, sound or heat. Computerized sensors in the sensor compares the average room temperature with the increase in heat that occurs when a man walked past the sensor. PIR detector sends a signal to turn on lights when someone in the room. After returning to the values of the average room temperature, the control signal goes to the light to turn off the lights.
Combined PIR and Ultrasonic Detector
The second type of detector PIR detector coupled to an ultrasonic wave-emitting active. This gives a more accurate reading when people come into and out of the room, allowing more precise control of lighting systems. It is also excellent for use in home security as they can determine the movement of intruders in the house with great accuracy, and turn on the alarm when necessary.
Active Ultrasonic Detector
Active sensors emit ultrasonic sound waves at a level far above what the human ear can hear. Detection sensor to receive the reflection of sound waves, which indicates the existence of those engaged in its detection zone. It is then able to activate the lighting, heat or air conditioning fans, or can sign up for an intruder alarm. This advanced technology makes active ultrasonic sensors was the most expensive of the six types of occupancy sensors.
Passive Ultrasonic Detector
An ultrasonic sensor passively listening to the voice frequency range, typically within 30 meters from his microphone receiver, the warning sensor for motion detection. The sensor can then turn on the lights or alarm sounds as established in the sensing or residential security systems. Less expensive than active ultrasonic sensors, passive sensors, however, are more likely to produce false alarms.
Microwave sensors and sensor Captain
microwave detector based occupancy sensor made the most reliable and affordable. Microwaves emitted from the sensor to detect the wide range of motion and lighting control or activate an alarm. Battery operated microwave sensor will work for residential electricity goes out, so they are ideal for home security.
Combined PIR and Microwave sensor Captain
Type of occupancy sensors work well in rooms with windows. PIR detector can not detect motion outside the windows, because glass blocks infrared radiation, but the microwave emitter can be. This sensor can activate the alarm or turn on interior lights when people are approaching your home or office window at night.