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HDC2022: Can multiple HDC2022 increase the accuracy?

HS FAE Germany
Mastermind 31690 points
Part Number: HDC2022

Hello,
customer ask if the accuracy can be increase if you measure the humidity with multiple sensors at the same location?

Regards, Holger

  • 0
    TI__Mastermind 28070 points

    Hi Holger,

    Thank you for your question.

    If we consider the sensor accuracy as a normal distribution and each sensor's accuracy to be independent of each other, then you could in theory improve the overall system accuracy by averaging readings from multiple different sensors.Other error sources such as sensor hysteresis, heat from nearby ICs, and thermal response lag due to a non-ideal layout would remain, but sensor uncertainty itself could be mitigated.

    TI could not warranty any results from a setup like this though, because we have not characterized for setups using multiple sensors, and our product testing is not designed around it. 

    Best Regards,
    Brandon Fisher