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    What parameters affect double tap detection reliability?

    yanqil
    New Poster

    What parameters affect double tap detection reliability?

    I am using the BMA456 in a product.  One of the features of the accelerometer that I am using is the double-tap functionality.  Besides the sensitivity and the ODR, what other settings would affect the reliability of the double tap sensor?  Do things like the number of averages affect this?

    3 REPLIES 3
    BSTRobin
    Community Moderator

    Re: What parameters affect double tap detection reliability?

    Hello yanqil,

    Tap detection was done by measuring the acceleration on z-direction. It must be ensured that when the structure is placed, the tap can be aligned with the Z direction.

    BMA456 Double tap tap detection.png

    yanqil
    New Poster

    Re: What parameters affect double tap detection reliability?

    RE: .  Yes that was quite obvious in the datasheet and we have ensured that in the design.  I am asking about register settings in the BMA device  itself that would affect reliability or performance of the double tap sensing.

    BSTRobin
    Community Moderator

    Re: What parameters affect double tap detection reliability?

    Hello yanqil,

    ODR must be greater than or equal to 200 Hz.

    If you install the sensor on the overall machine, you could adjust the appropriate sensitivity.

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