General, Research, Technology

How to choose a thermal imager?

Thermal imagers are verycommon devices that have found their application in many fields of activity: security, army, hunting tourism and much more. Therefore, in recent years there have been quite a lot of them, which has significantly complicated the choice of a good thermal imager. Few understand such devices, and there are very few specialists in this field. Today we’ll try to figure out what a modern thermal imager is, how it works and what its main characteristics need to be considered when buying.

Thermal imagers have long ceased to be just an army device


  • 1 How the thermal imager works
  • 2 How to choose a thermal imager?
    • 2.1 Main characteristics of thermal imagers
  • 3 What is special about Pulsar thermal imagers

How does a thermal imager work?

Thermal imager Is a measuring device that works bythe principle of determining the thermal radiation of the object of observation. So, the object that comes under observation, and the background on which the same object of observation is located, create a contrasting picture of the temperature background.

The essence of the thermal imager is that it displays invisible to the human eye thermal background of infrared radiation. For example, using a thermal imager in hunting, you can count on the fact that the animal’s thermal background will be reflected on the “cooled background” of the environment. Thus, you can see to the smallest detail the silhouette of the animal, which will allow you to make the most accurate shot.

Hunters began to widely use thermal imagers for night hunting

How to choose a thermal imager?

Since entering the market, thermal imagersreally became more affordable, including this can be considered a merit of one of the most popular manufacturers of optical and optoelectrical devices Pulsar. However, even now, buying a thermal imager is a serious financial investment, and it really obliges you to take your first thermal imager seriously.

The first thing to do is define tasksto solve which you need a thermal imager, andthe scope of use in which you intend to use the thermal imager. And, of course, determine the budget that you are going to spend on the purchase of the device (the price depends entirely on the functionality of the gadget).

The main characteristics of thermal imagers

The basic characteristics of the thermal imager include:

  • Expansion;
  • Field of view angle;
  • Temperature Range;
  • Heat sensitivity;
  • Frame refresh rate;
  • Battery life

Let's talk more about each component.

Thermal imager extension - this is one of the main parameters of the thermal imager,since the expansion of the device matrix indicates the number of heat points, which will be displayed on the display of the device. So, the greater the expansion of the matrix and, accordingly, the more heat points, the more accurate the final image will be.

Field of view - a characteristic that captures the field of observation. Pay attention to this indicator if a more detailed study of objects is important for you.

Temperature Range - this is the range in which the thermal imager can determine the temperature background.

Heat sensitivity - This is a characteristic of the thermal imager, which shows the sensitivity of the device to the determination of temperatures. The highest characteristic is considered <30 mK, high <60 mK, average <80 mK.

Frame refresh rate - characteristic of the thermal imager, which speaks ofthe frequency with which the frame change will take place on the display of your measuring device. Please note that if you do not need dynamic monitoring, you can choose a device with a minimum refresh rate, saving part of your budget.

Battery life - if you need a thermal imager with a longbattery life, then be sure to pay attention to this item. For example, on average, thermal imaging binoculars work without additional recharging for about 5 hours.

What is the feature of Pulsar thermal imagers

The better the thermal imager, the more accurate its readings

As we wrote above, Pulsar - one of the leading manufacturers of thermal imagers. Their devices have a wide range of functions, they are of high quality and affordable, which attracts users around the world.

Currently, the following model series of Pulsar thermal imagers are presented:

  • Helion (updated series - Helion 2);
  • Axion (Axion XM30S and Axion Key devices).

Quality body material, light weightdevices, integration with mobile devices, soft image, the presence of a built-in video recorder, water resistance, the most convenient picture-in-picture mode is only a small part of what modern Pulsar thermal imagers offer.

If the principle of operation and basic characteristicsAfter reading this article, it seems to you that you already understand modern thermal imagers, we advise you to visit the PulsarNV website to select a specific device that suits your tasks and field of use. If you still have technical questions, you can always consult a representative Pulsar, which with pleasure will help to decide on the choice of your first thermal imager.