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Half sensitivity of one VL53L0X

Question asked by Ilg.Harald on Nov 7, 2016
Latest reply on Feb 24, 2017 by Ilg.Harald

Hy,

for a proof of concept I created five identical devices, each having 3 VL53L0X, so I have an overall of 15 VL53L0X that are mounted (behind an acrylic glass shade) and connected (via 2.8V, I2C) identically. During test of my devices I observe, that one of the sensors has quite exact the half sensitivity of all other devices: amplitude is about half, standard deviation is about four times of the other sensors.

I can't see any optical explanation for this: no scratches nor soiling of the front glass. Might there be any other explanation? Do I need to characterize devives before I use them?

Regards

Harald

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