Infrared and thermal technologies share universal principles and often represent the same values of temperature. Many people make the mistake of interchanging the terminologies to mean the same concept. The difference is they have variations that make them applicable in different projects in the military, surveillance, and security fields.
Do you need to know the difference?
Understanding the difference is essential to one who wants to gain specific benefits from each one.
A thermal camera measures the absolute temperature of an object, while an infrared camera measures the beam of light waves in a spectrum. Infrared cameras need a light beam to observe while the thermal camera can read without one. A significant advantage of the device is that the thermal camera can work excellent in complete darkness, whereas the infrared camera is dependent object’s radiation.
Thermal cameras do not use radiation from the frequency of the IR spectrum, whereas the thermal camera uses a wavelength frequency in a completely different range. The IR camera spans visible light within the spectrum of 400nm and 750nm, whereas the thermal camera operates at a wavelength of up to 14,000nm.
Thermal cameras detect a difference in radiation from an object, while an IR camera detects light from an object. This case means that the IR camera can only work while identifying an integral IR LED.
The IR camera has a design and functions that work the same way as a standard optical camera. The thermal camera is different because it has a different design with notably different materials like germanium. The sensors are different to respond differently to the detection of photons; hence the technology tends to cost more than that of an IR camera.
Thermal cameras as a favorite for most security-related applications because they can sense wavelengths from greater distances. IR cameras have limited operational ranges of up to 200 meters and often depend on the target’s reflection of a specific wavelength.
You will need a more powerful illuminator when using an IR camera because the field of view tends to reduce with increasing distance. Additionally, IR cameras have LED degradation after approximately five years. Thermal cameras are different because their only limit is the operational range and the sensitivity of the lens.
An infrared security camera uses a short wavelength to illuminate the target area, whereas a thermal imaging system uses mid or long-wavelength energy. Thermal imagers are better in regions with long wavelengths, or hot zones, because they can scan through smoke, dust, headlights, dust and other aerial obstructions.
The heat signatures that affect the wavelength of the cameras are visible on the monitor as black or white. Make sure you test the scanner’s response in different conditions before purchasing particular applications.
Which camera is best for your application?
The thermal camera is a better option for durable use, extreme weather elements, and night vision. The infrared security camera will work well in combination with a thermal camera because it arguably has the same limitations as an optic camera.
We stock the best thermal variations because we understand that the specifications play a vital role in offering excellent pictorials. Contact us for a smooth purchase through our online store.Infrared Security Camera
View Larger Map