Are you familiar with thermal cameras? Actually, these devices have become increasingly popular in the field of surveillance and security, owing to their ability to detect heat with a special sensor. Heat is represented in the form of a color map that highlights various levels of warmth with different colors.
However, in order for this device to provide accurate results, you’re supposed to select its features attentively. In fact, you need to make sure it has a wide temperature range, a sharp focus, high resolution, as well as a high contrast color pallet.
Nowadays, thermal cameras have been widely used as component parts of fever detection systems, as a way of fighting coronavirus. They’re able to detect any abnormality of the standard body temperature in passengers at airports, which is considered to be one of the crucial coronavirus symptoms.
The following tips will help you choose the best device on the market.
Consider temperature range
The initial feature to take into consideration is undoubtedly temperature range, as the primary purpose of such a device is detecting temperature. Naturally, the range should be selected in accordance with the type of inspection you perform.
Anyhow, you could also choose a thermal camera with an extensive temperature range that automatically adjust to the environment. Furthermore, there are devices that enable you to set the range manually. Click here to check out the normal body temperature range, which is important for the purpose of fever detection.
Consider focus
Another important feature to bear in mind is definitely focus, as there are numerous focus types to choose from. For instance, you can choose manual focus if you’re looking for greater precision. However, auto focus would be a better alternative if trying to avoid manual work.
Furthermore, there’s even a laser auto focus that employs a laser in order to determine the distance to the intended person or object. Perhaps the most advanced focus type would be the multifocal one, as it’s capable of taking more than one picture of the target. These images are afterwards fused into a single one that provides a greater number of details.
Don’t forget durability
Although durability is often neglected, it’s actually one of the most essential features of thermal cameras. It’s paramount for the device you choose to be highly durable, particularly when using it for surveillance and security purposes.
In fact, these devices need to be durable in order to be used for lengthy time periods, especially when being placed outside. However, durability is also important for indoor use, like in the case of fever detection systems. Actually, thermal cameras are an integral part of fever detection systems, such as https://athena-security.com/coronavirus-detection, which are nowadays placed at airports to detect elevated temperature in the fight with the coronavirus pandemic.
Consider color pallets
Color pallets are an indispensable characteristic of thermal cameras, as these facilitate the detection of potential abnormalities. Therefore, you’re advised to choose a pallet with high contract colors in order to achieve greater visual effect, unlike monochromatic colors that aren’t exactly beneficial for displaying anomalies.
Additionally, most of these devices feature color alarms that point out the areas with abnormal heat, which isn’t within the standard range. For example, these alarms are particularly beneficial for immediately signaling elevated temperature in passengers at airports, which is a potential symptom of coronavirus. Thus, security will be momentarily alarmed if any of the passengers should be prevented from travelling.
Inspect their usage
These devices can be used both during the day and night hours, but they display a better contrast at night. Actually, the contrast has nothing to do with light, but with the warmth that objects absorb from the sun. Therefore, those cameras placed outdoors are likely to show a sharper contrast during the morning and evening hours. Moreover, these devices don’t tend to work through glass, through walls and underwater.
Remember to check resolution
There are two types of resolution to bear in mind when choosing a thermal camera, those being detector and spatial resolution. The former one refers to the number of pixels that denote resolution’s quality. The more pixels the device has, the better its resolution.
On the other hand, the latter refers to the space that is viewed through the camera. In fact, it’s highly useful in detecting targets of small size. In this case, the lower the resolution, the greater the quality. Anyhow, you’re supposed to determine the resolution, based on the size of your targets.
Wrap up
Thermal cameras have proven to be certainly beneficial in the fight with the coronavirus pandemic.
Being used in fever detection systems has helped in preventing the spread of the virus.
Remember that the fields of surveillance and security have been using their benefits for years!
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