Related introduction to hunting thermal imaging instruments in the wild: All objects above absolute zero (-273℃) will emit infrared radiation. Thermal imaging instruments use infrared detectors and optical imaging lenses to receive the infrared radiation energy distribution diagram of the target to be measured, and reflect it on the photosensitive element of the infrared detector to obtain infrared thermal images, which correspond to the thermal distribution field on the surface of the object. By viewing the thermal image, the overall temperature distribution of the target to be measured can be observed, and then the target object can be found.
Detector
1. Pixel size: The smaller the pixel spacing, the more optimized the optical system, the lower the power consumption, and the more delicate the image effect. At present, most of the pixel sizes on the domestic market are 12μm and 17μm, and 12μm is relatively better.
2. Materials: The mainstream materials are vanadium oxide and polysilicon. The sensitivity of vanadium oxide is more than twice that of polysilicon, which is a more ideal material.
3. Resolution: The higher the resolution, the farther and smaller the target can be detected, and the higher the image quality, such as 640×480, 384×288, etc. It is recommended to choose products with a resolution of 300 or above.
4. Thermal sensitivity: netd, which represents the minimum temperature difference that the thermal imager can distinguish. The smaller the value, the higher the quality of the thermal image.
5. Frame rate: refers to the number of images processed by the thermal imager within 1 second. The higher the frame rate, the better the performance of the thermal imager and the faster the response speed. The frame rate of thermal imagers on the market is usually 25Hz-50Hz.
6. Lens: The lens of the thermal imager is mostly made of germanium glass. The smaller the aperture f value, the larger the aperture, the more light passing through, and the better the image. Common lens sizes include 19mm, 25mm, 35mm, 45mm and other specifications, which can be selected according to different terrains and usage requirements.
Features
1. Ballistic calculation: Through intelligent calculation of relevant parameters affecting the trajectory of the ballistic motion, the correct reference mark is given to improve the shooting accuracy to a certain extent.
2. Laser ranging: After one-click opening, the target position can be automatically displayed on the screen, without the need for external instruments to measure the target position.
3. Shockproof and waterproof performance: High-quality thermal imagers usually have certain shockproof and waterproof capabilities, such as reaching IP67 waterproof level and 6000J shockproof capability to cope with complex and harsh outdoor environments.
4. Battery life: Considering the need for long-term outdoor use, thermal imagers with removable and replaceable lithium batteries as accessories are more practical, which can avoid battery aging problems and extend the use time.
Brand and product recommendation
The effective detection distance of thermal imagers when hunting in the wild is affected by many factors, including detector performance, lens parameters, target size and environmental conditions.
Onick: RE650, RE850, RE45L, RM-1, etc.
If you like, you can contact us: service@onick-optics.com