Fever detection using infrared cameras to quickly identify people with elevated body temperature
19 May 2020
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Rapidly spreading viral diseases, such as COVID-19, have led to increased need to determine body temperature quickly & reliably, using infrared measurement technology. But checking each person individually can be cumbersome & time-consuming. That's why Optris has now launched a new system based on its PI 450i infrared camera, which has an optical resolution of 382 x 288 pixels.
Together with the included PIX Connect Software, the surface temperature of a person’s face can be measured, even when they are just passing by.
The new system can be used with two different methods: the temperature of people in a crowd can be recorded, or people can be checked individually for an elevated temperature.
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The second method provides more reliable results, because the temperature measurement can be taken at the eyelid, where the temperature has the strongest correlation to the body’s core temperature. Optris provides the appropriate optics to perform the measurements at an optimal distance using both methods.
Reference heat radiator ensures high absolute accuracy
The PI 450i infrared camera has a thermal sensitivity of 40 mK. To increase the absolute accuracy of temperature measurement, which is typically ±2°C for infrared cameras, the PI 450i can be used in combination with a reference radiator.
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The BR 20AR type radiator is equipped with a highly accurate internal temperature sensor. This reference signal is processed in the PIX Connect software.
This allows for an overall accuracy of the system of ±0.5 °C. The software runs on any standard PC and is quick and easy to set up and configure.
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Temperature thresholds for example can also be defined, which automatically trigger an alarm if they are exceeded.
The new system can be used wherever contactless checking of many people for an elevated body temperature is necessary to prevent a virus from spreading further. Possible places of application of the system include airports and railway stations, as well as hospitals, schools, offices, shopping centres and more.
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More information about the Optris fever detection systems can be found at: www.optris.global/fever-screening-systems
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About Optris
Founded in 2003, Optris has established itself as one of the leading manufacturers of devices for contactless temperature measurement. The company’s product portfolio consists of portable and stationary infrared thermometers, as well as online infrared cameras for thermographic real-time analysis.
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