Bosch Sensortec Community

    cancel
    Showing results for 
    Search instead for 
    Did you mean: 
    SOLVED

    Which IMU has the best performance?

    Which IMU has the best performance?

    Omega326
    New Poster

    Hello everyone,

    There are so many different part number, I would like to know which IMU (gyro+accel) has the best performance? I am looking for an IMU with low bias, that does not drift with temperature and does not need to be recalibrated often.

    The IMU will be used in a robotic platform, power consumption, price, package, industrial/automotive rating and feature such as pattern recognition does not matter, I will mainly use the raw data and do the filtering on an external processing unit. 

    So if you had to choose only one, what would you use?

    I did not find any comparaison between all of them, let me know if you any info that could help.

     

    Thank you

     

    5 REPLIES 5

    FAE_CA1
    Community Moderator
    Community Moderator

    Hi,

    Thanks for your inquiry.

    We have open-loop gyro IMUs such as BMI160, BMI270 and BMI26x. We also have close-loop gyro IMUs such as BMI055, BMI085 and BMI088. For drone and robot applications we highly recommend BMI088 at https://www.bosch-sensortec.com/products/motion-sensors/imus/bmi088/.

    Open-loop gyro has lower current consumption and lower noise density. Close-loop gyro has better TCO (offset or bias change over temperature) and better long term bias stability of less than 2 degree/hour. In addition, BMI088 accel has built-in damping feature to be immune to external vibration noise from drones and robots.

    Please see the attached comparison chart.

    Thanks.

    Thank you very much, that is exactly what I was looking for.

     

    Gideon
    Long-established Member

    Hello,

    In my company, BMI055 is already in production for 5years . and works fine.

    And I'm thinking to change the part bmi055 to bmi085. But you compared bmi055 and bmi088.

    So, I want to know your opinion if I choose bmi085 instead of bmi088.

    FAE_CA1
    Community Moderator
    Community Moderator

    Hi,

    The gyros inside BMI055, BMI085 and BMI088 are the same. Only the accels are different. BMI055 accel is 12-bit with +/-2g to +/-16g, while BMI085 accel 16-bit with +/-2g to +/-16g and BMI088 accel 16-bit with +/-3g to +/-24g full scale range.

    If BMI055 works fine for you before, then you can freely select BMI085 or BMI088. But we recommend to use BMI085 for AR/VR applications, while BMI088 for drones and robots applications.

    Thanks.

    Icon--AD-black-48x48Icon--address-consumer-data-black-48x48Icon--appointment-black-48x48Icon--back-left-black-48x48Icon--calendar-black-48x48Icon--center-alignedIcon--Checkbox-checkIcon--clock-black-48x48Icon--close-black-48x48Icon--compare-black-48x48Icon--confirmation-black-48x48Icon--dealer-details-black-48x48Icon--delete-black-48x48Icon--delivery-black-48x48Icon--down-black-48x48Icon--download-black-48x48Ic-OverlayAlertIcon--externallink-black-48x48Icon-Filledforward-right_adjustedIcon--grid-view-black-48x48IC_gd_Check-Circle170821_Icons_Community170823_Bosch_Icons170823_Bosch_Icons170821_Icons_CommunityIC-logout170821_Icons_Community170825_Bosch_Icons170821_Icons_CommunityIC-shopping-cart2170821_Icons_CommunityIC-upIC_UserIcon--imageIcon--info-i-black-48x48Icon--left-alignedIcon--Less-minimize-black-48x48Icon-FilledIcon--List-Check-grennIcon--List-Check-blackIcon--List-Cross-blackIcon--list-view-mobile-black-48x48Icon--list-view-black-48x48Icon--More-Maximize-black-48x48Icon--my-product-black-48x48Icon--newsletter-black-48x48Icon--payment-black-48x48Icon--print-black-48x48Icon--promotion-black-48x48Icon--registration-black-48x48Icon--Reset-black-48x48Icon--right-alignedshare-circle1Icon--share-black-48x48Icon--shopping-bag-black-48x48Icon-shopping-cartIcon--start-play-black-48x48Icon--store-locator-black-48x48Ic-OverlayAlertIcon--summary-black-48x48tumblrIcon-FilledvineIc-OverlayAlertwhishlist