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ADIS16375 output noise

Hi, everybody!

Here is my question:

With my ADIS16375, I use DIO1 as a 2kHz Sync clock input, DEC_RATE set as 100, so how can I calculate the noise variance of Gyro and Accelerometer output according to the datasheet? How to use parameters like "Output Noise", ''Rate Noise Density", etc?

I'm just new to these, thanks for your patient reply!

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  • Hi,

    This link will help you understand some quick definitions on accelerometer specifications:

    Accelerometer Specifications - Quick Definitions | Analog Devices 
    As for using the Output Noise Parameter, this means that your measured signal must not fall below this value as it being too small would make it seem that that signal is also just noise. 

    As an example: 

    This image shows an acceleration with peak of 0.1 g. The noise in the figure corresponds to the output noise found in the data sheet which is measured to be 1.5mg (rms). 

    As seen in the figure, the acceleration can still be distinguished from the noise. 

    When the acceleration now has a peak less than the output noise, (1mg peak) it is seen that the acceleration is fully enveloped with noise. 

    I hope that this has given you an overview on this topic. 

    Regards, 

    JP

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  • Hi,

    This link will help you understand some quick definitions on accelerometer specifications:

    Accelerometer Specifications - Quick Definitions | Analog Devices 
    As for using the Output Noise Parameter, this means that your measured signal must not fall below this value as it being too small would make it seem that that signal is also just noise. 

    As an example: 

    This image shows an acceleration with peak of 0.1 g. The noise in the figure corresponds to the output noise found in the data sheet which is measured to be 1.5mg (rms). 

    As seen in the figure, the acceleration can still be distinguished from the noise. 

    When the acceleration now has a peak less than the output noise, (1mg peak) it is seen that the acceleration is fully enveloped with noise. 

    I hope that this has given you an overview on this topic. 

    Regards, 

    JP

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