Does Wind Affect the Body Temperature Thermal Screening Process?

The number of COVID-19 cases globally is growing rapidly. That is why thermal cameras have wounded their way into our lives. When used correctly, thermal temperature screening provides the best, quickest, and most accurate results when measuring a person’s temperature without being physically close to them. And in the current pandemic, avoiding physical contact is crucial. That being so, thermal screening cameras are becoming more useful.

These devices have shown to be helpful and effective as COVID-19 spreads from person to person, and the only means of avoiding it is avoiding contact. Nevertheless, in order for thermal cameras to show accurate results, other factors need to be taken into consideration when measuring people’s temperatures such as sun heat, humidity, solar reflection, as well as wind speed, and any potential drafts.

Wind and Thermal Screening Outdoors

To grasp the concept of the effect wind has on an object, the key principle of heat transfer needs to be understood first. That is, that thermal energy is constantly moving from hot to cold except if something else changes the action. So when using a thermal camera to examine an object, the environment also needs to be taken into account.

What can affect the temperature of the object is any forced convection, such as the wind, or even a fan or a small draft. That is why when measuring the temperature outdoors, an obstacle occurs, and that is that wind is not a constant and it continually changes, thus it is improbable to take the wind fully into account. Thermography that takes place outside is not always correct, particularly in windy situations.

Wind and Thermal Screening Indoors

Due to heat exchange, the air that is near the surface has an equal temperature to the temperature of the object being measured. That is why wind or a draft can replace said air with air that has not been acclimated to the temperature of the object. Consequently, heat from the object is reduced until it has adjusted to the temperature of the air from the wind.

In other words, if there is cold air coming in through a draft, the object of measurement will consequently have a lower temperature. That is why a room without a draft and no movement of air should be used to measure. The room should also be out of direct sunlight, and away from radiant heat such as portable heaters and electrical sources.

Conclusion

The short answer you are looking for is yes. Yes, the wind does affect the body temperature in a thermal screening process. Wind can impact the thermal image temperature consistency, that is why, when measuring, performance inside and in zero wind circumstances is suggested, while also taking other environmental factors into account.

Summary
Does Wind Affect the Body Temperature Thermal Screening Process?
Article Name
Does Wind Affect the Body Temperature Thermal Screening Process?
Description
When used correctly, thermal temperature screening provides the best, quickest, and most accurate results when measuring a person's temperature without being physically close to them.
Author
Publisher Name
Optics Trade Blog
Publisher Logo

Leave a Reply

Your email address will not be published. Required fields are marked *