2020年1月5日星期日

Summary of SPAD photon detector usage

Here is a summary of the errors and experiences of using SPAD Detector (SPCM AQRH series):


1. Remove the black protective sleeve before use

This should be considered as common sense. But at the beginning, I didn't know it so that no data was obtained;


2. Note the enable termination high

The enable should be tied high to enable counting.

3. Pay attention to the focal length of the lens

The focal length of the front lens of the detector should be exactly equal to the distance of the lens from the detection hole, and fine-tuned to get the best detection structure.

4. Pay attention to height

The detector and laser must be aligned, otherwise the detection result will have an unexpectedly bad effect.

5. When buying, you should buy all the accessories

When purchasing, you should discuss the distribution requirements of the fixed components with the agent / producer in advance to facilitate subsequent installation and calibration.

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