Hello, I'm trying to measure a static level using the VL53L4CX. The following test shows an unusual drift in the level measured by the sensor.
I'm using clean water for the test and a specific tank.
I performed the test without any cover glass on the sensor and calibrated the offset (Per VCSEL) using the recommended container.
I'm using distance mode long, timing budget on max (200 ms)
I also performed a stop and restart every minute for temperature compensation.
The only parameter that seems unusual at the moment of the drift is the SPAD count (plot below).
This drift doesn’t occur every time I run the same test—it happens occasionally and without any regular pattern.
Is there any recommendation? What causes this drift? Should I do something differently?
