Hello, Habr! I present to your attention the translation and adaptation of original technical articles on the use of televisions for human temperature screening: "ELEVATED BODY TEMPERATURE (EBT) FUNDAMENTALS" and "BEST PRACTICES FOR EBT" .
The purpose of this article is to help the reader avoid the simple mistakes that many organizations make in rushing to implement thermal imaging technology for screening fever. This is far from a comprehensive document, but its purpose is to provide a general idea of how effectively thermal imaging technology can be used for this purpose.
The article is intended primarily for technical specialists who are interested in a deeper understanding of the theory of this issue.
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(: Medical electrical equipment — Part 2-59: Particular requirements for the basic safety and essential performance of screening thermographs for human febrile temperature screening).
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(: Medical electrical equipment — Deployment, implementation and operational guidelines for identifying febrile humans using a screening thermograph).
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- IR resolution: 640 × 480 pixels
- Thermal sensitivity/NETD: < 0.03°C @ +30°C / 30 mK
- Field of view (FOV): 25° × 19° (31° diagonal)
- Spatial resolution (IFOV): 0.68 mrad
- Object temperature range: –40°C to +150°C
- Accuracy: ±2°C or ±2% of reading
:
- Target Temperature: 35 °C
- Emissivity (ε): 0.98 ± 0.004 (for wavelength of 8µ to 14 μm)
- Aperture diameter: 80 mm
- Temperature uncertainty: 0.4 °C for T(ambient) = 10 to 30 °C
- Repeatability: 0.2 °C
- Stability: 0.1 °C
- Temperature uniformity: 0.2 °C
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This technology can be of great help during this period of crisis. But please do not agree that this is a silver bullet, it is a very small part of a very large solution to a huge problem that we all face together.