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VL53L1X with cover glass needs calibration

pthakkar
Associate II

Hi

I am using Vl53L1X to measure dark surface upto 1000 cm far.. I am using a split cover glass(specifications attached). The benefits of using the split cover is that it prevents crosstalk. But even after attaching the cover, the distance measured by the sensor decreases when the object moves away from the sensor.  Do I still need crosstalk calibration with cover glass or the cover is not ok.

I have configured my sensor as follows:

status = VL53L1X_SetDistanceMode(dev, 2); /* 1=short, 2=long */
status = VL53L1X_SetTimingBudgetInMs(dev, 100000); /* in ms possible values [20, 50, 100, 200, 500] */
status = VL53L1X_SetSignalThreshold(dev, 1024);//500);
VL53L1X_SetROI(dev, 16, 16);  // Full FoV (start here)

 vl53l1x_cover.jpeg

 

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