Shuttered or Shutterless thermal imager?

generally speaking, no shuttered thermal imager is better than shuttered ones.

What is the shutter? Why thermal imagers divided into shutters and shutterless?

Currently on the market, most infrared thermal imagers are with shutter. If you have seen almost all infrared thermal imagers, you will find that only some brands are specially marked with or without shutter in the product description, because only a small number of models are designed without shutter. 

What is the shutter? Why are infrared thermal imagers divided into shutters and shutterless?

The most critical component of an infrared thermal imager is the detector. At present, in the market, the detectors cannot automatically adapt to the outside temperature and humidity due to insufficient production technology and software adjustment.  

Therefore, if it is used for a period of time, or the temperature and humidity of the observed object changes, the only way to block the lens is through the shutter, and reset the detector parameters according to the existing environment to achieve a suitable observation effect. If it is not reset, irregular gray background or horizontal and vertical stripes will appear during observation. This is where the shuttered infrared thermal imager comes in.

The shutter is built in between the lens and detector. Open and close automatically or manually at intervals.

The infrared thermal imager without a baffle shows that it is equipped with a better detector that can better adapt to changes in environmental temperature and humidity. to achieve the best observation effect. 

Why there will be bad feelings when using an thermal imager with shutter?

The image will stop for about 2-5 seconds when the shutter is opened and closed manually or according to the time interval, because no data is collected during this time. This is the transient fragment and image will be strucked during the process.

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