What can a thermal imager see through?

What a thermal imager sees

Thermal imaging cameras are optical-electronic devices designed to track, measure temperature at a distance, and create an image of objects located in its field of view based on the temperature difference compared to the surrounding environment. Modern thermal imagers are capable of capturing thermal radiation from both objects and people, thereby giving the user an image of the thermal difference between the object and the background.

How far does a thermal imager see

To set the range of a thermal imager, you need to consider the size of the lens, its resolution, the weather conditions in which it will be used, and the types of objects that need to be detected.

On average, the range of a thermal imaging device ranges from several meters to several kilometers. A large lens diameter helps to increase the range of a thermal imager, which can reach several kilometers. You should also consider the focal length of the lens and the presence of a cooling system in the thermal imaging camera.

Can a thermal imager see in the dark?

Thermal imagers see in the dark. All objects you see have their own thermal characteristics, even a stone can have a temperature.

Thermal imaging devices do not need illumination, they see both in the daytime and at night. Since thermal imagers can see at night, they are popular among hunters, as thermal imaging devices and monoculars, and among drivers, as a car night vision system.

Is smoke and fog an obstacle for a thermal imager?

• Smoke is not an obstacle for a thermal imager. Firefighters use this equipment in smoke-filled rooms to detect victims.
• Fog can reduce the visibility of the device depending on the microphysical structure of the aerosol, and in some cases has no effect on visibility.

Thermal imaging monoculars in our NVECTECH store, due to the fact that they have NETD ≤18mk@300k, allow you to recognize objects even in complete darkness and in poor visibility conditions.

Can a thermal imager see through trees?

This question is often of interest to hunters or rescuers operating in open areas. Thermal imagers cannot detect objects located behind tree trunks, but they help when searching for people or animals in forests.

A thermal imager allows you to search for people or animals through bushes or reeds. There are small thermal imagers that are used to search for missing people from above. This allows you to find people, since they can be seen through the leaves of trees.

Can a thermal imager see through walls?

A thermal imager cannot see behind concrete or brick walls. When pointing a thermal imaging device at objects located behind a wall, they are not visible. Therefore, when you are behind an obstacle, you will not be visible until the heat of your body heats the "barrier" behind which you are hiding.

The ability of a thermal imager to detect objects directly depends on its thermal conductivity and heat capacity. A material that does not transmit light will also transmit heat poorly.

Obstacles made of plasterboard or plywood can be an exception. These materials will not be an obstacle for modern equipment.

Can they see through glass?

As funny as it may sound, a thermal imager cannot see through glass. Thermal imaging cameras see and measure the temperature of glass, but objects located behind it are inaccessible to thermal imaging devices. Glass or water absorb and evenly distribute the thermal radiation of an object.

Can a thermal imager see through clothing?

Absolute thermal insulation of an object guarantees its concealment from thermal imaging surveillance. If the insulation of clothing is poor, the outgoing heat will detect you. And a thermal imaging camera will be able to detect you.

There are tactical fabrics made using special technologies that insulate an object and adjust to the temperature of the outside environment. The protective material includes metal particles, polymers and microfiber, which have proven their effectiveness at temperatures from +10 to +38 degrees.

For example, animals with thick, dense fur can become inexpressive for hunters armed with thermal imagers. This should be taken into account when buying thermal imagers for hunting.

By contacting our store you can buy a thermal imaging monocular of the Patriot 2 series, which has proven itself well for hunting. They have maximum sensitivity to temperature changes, which allows you to detect minor changes in temperature.