Computers & Electronics

Thermal Imaging Cameras In The Fight Against COVID-19

The world is currently panicking and cowering in fear with a new disease called COVID-19.

Previously known as the Novel Coronavirus or NCoV, COVID-19 came from a new strain of coronavirus that was first reported in December 2019 in Wuhan City, China.

This respiratory illness spread from person to person and causes flu-like symptoms including coughing, fatigue, sore throat, shortness of breath and fever.

Want to know how COVID-19 spreads? You can check here.

Thermal Imaging Camera: What Is It and How Does It Work?

Thermal imaging products are devices that pick up thermal or heat energy and translates it into visible light, allowing you to analyze a specific scene or object.

Infrared energy as a wavelength beginning at about 700 nanometers, extending to 1mm. Any wavelengths shorter than this starts to be visible to the naked eye.

Thermal cameras use this infrared energy in order to create these thermal images. The camera lens focuses the infrared energy onto a series of detectors which created a detailed pattern known as a thermogram. It is then converted to electrical signals in order to create a thermal image that you can see and analyze.

The common standard for thermal imaging cameras of today is showing warmer objects in yellow-orange colour, getting brighter as it gets hotter. Meanwhile, the colder objects are shown with a purple or blue colour.

You can check here to watch how to use thermal imaging cameras.

The Role of Thermal Imaging Cameras

Thermal imaging cameras were initially created for military use. Today, however, it is being produced for lots of purposes including:

  • Preventive maintenance
  • Cooling and heating troubleshooting
  • Animal health
  • First Responders
  • Security
  • Moisture leaks and mould

And now, with the ever-increasing threat of the infectious COVID-19, thermal imaging cameras also proved to be useful.

Thermal Imaging Cameras and COVID-19

So, how does it help in the fight against COVID-19?

Well, as mentioned before, thermal imaging cameras detect heat signatures. And one of the symptoms of COVID-19 is high fever. So, a thermal imaging camera can help detect elevated body temperatures that can indicate the presence of fever.

Thus, helping authorities to limit to contain the spread of viral diseases including COVID-19.

In efforts to contain this highly contagious disease, thermal imaging cameras are set up at checkpoints, borders, airports, and other places in order to quickly screen a large number of people for signs of elevated body temperatures.

Meanwhile, other thermal imaging cameras include a Screening Alarm feature. These cameras are mainly used in airports in order to detect passengers with elevated body temperature, notifying personnel when temperature anomalies are detected in a series of inspected objects in a fixed setup.

Such a feature allows for quick action from personnel, limiting the contact of that individual.

For a faster checking, authorities and security personnel are also using a handheld device called a non-contact thermometer that is pointed at the individual’s forehead to scan for signs of fever. These are more commonly used in supermarkets, grocery stores, schools, and businesses.

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