2019-07-25

More and more people use thermal camera in their daily life, and how to choose a good thermal camera becomes more and more necessary, there listed 5 key features and specs you should consider :

Resolution

Detector resolution indicates the number of detector pixels on the camera. More pixels, means higher resolution.

Spatial resolution is based on detector pixels and the field of view (FOV) spec, combining them to define the area the imager sees at any given moment. Spatial resolution can be used to help define the smallest object size that can be detected. A lower spatial resolution value means better detail and image quality.

Focus

With a variety of focus mechanisms to choose from, it is important to take into account your skill level as well as the application in selecting a focus type. Here are the common focus mechanisms:

Fixed: Point and shoot simplicity

Manual: Precise incremental focus

Auto focus: Automatically focuses on a target but may require manual adjustment.

Laser-assisted auto focus: Uses a built-in laser distance meter to calculate distance to the target.

Temperature range

The highest and lowest temperature you encounter in your inspection determines the temperature range you need from your thermal imager. Or, select a camera with a wide temperature range that automatically selects the range based on your scene, or allows you to manually select the temperature range.

Saving images and additional data

Save infrared and digital images and in some cases voice notes to internal memory, a removable SD card, or to a USB flash drive. It’s important to have the flexibility to save images and additional related data to different media for backup or sharing.

Color palettes

Slight differences are easier to see with a monochromatic palette, such as grayscale or amber. High contrast palettes can make it easier to quickly find obvious anomalies. You should be able to change the palette in the camera or in the software.

Battery type and life

Look for a battery with useful features such a charge level indicator. Nothing is worse than starting an inspection with no idea of the battery status. Also consider long battery life and quick charging ability.

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