Synopses: Discover how motion detector operates the basics and the different types, and how it can help a homeowner develop the right methods of how to make it work for their safety and protection.
Most homes come with the benefit of having a motion detector as part of its security alarm package. As an advanced technology, it uses different mechanical and technical operations that make it stand out in the market. Whether it is a wireless motion detector or hardwired devices, the fact is they operate with such speed and efficiency in detecting human presence that one is instantly alerted by their presence.
How Does It Work?
Motion sensor lights for plenty of security systems come with the passive system that is able to see and detect any infrared energy. Passive infrared is probably the type of sensors that are able to detect human presence because of its sensitivity to the heat of the human body. Temperatures usually measure to as much as 93 degrees will be sending out infrared energy that could be captured in a wavelength of around 9 and 10 micrometers.
There are some people that may question why the motion detector is unable to detect humans that are standing still. The major reason for this is the fact the rapid changes in the infrared energy that passes in front of it is far easier to detect. With the wide scope of the lens of the sensors, it could easily bend it for changes in the energy. New motion detectors detect body heat temperature, too, so a still-standing person would trigger the alarm.
Different Types of the Motion Sensor
Whether one uses the motion activated camera or typical motion sensor lights, the fact is there are actually different types of these devices in the market. Technically, there are three different classifications for the motion detector, and each will come with its own advantage that makes it a favorable product to be part of the home security measures.
Passive Infrared – this is the most common type of detector that is found in plenty of homes. Most homeowners consider this option for their home as it comes with the benefit of having them have pets that will not easily be detected by the alarm. Usually, the PIR sensors come with the ability to foresee movement because of the sudden changes in the temperature of the object. As humans will usually incur such changes, it will only mean that such movement detected is caused by a living thing that is typically larger than an animal. A good benefit this type of motion sensor offers is that it actually helps identify potential fires inside the home.
Ultrasonic Detectors – Sound is considered as one of the signs of a possible intruder. While most burglars will act with the quietest movements, the fact is they still make sound waves that can be detected by this sensor. Two types of the ultrasonic devices exist, and these are the passive and active detectors. The former type is one that is able to pick up sounds with the use of receivers while the latter model is one that detects low pitch sounds that cannot be heard by the human ears.
Microwave Sensors – A third type of motion sensor uses microwave energy that will be used as a method to detect movement. A wave of energy is passed in an area, and once disturbed it will send a signal to the main panel or monitoring company that human presence has been detected.