lsm6dsv16bx data validation

[Varsha]

I have integrated lsm6dsv16bx in my Microcontroller and I'm able to see the IMU datas in output for example:  AX=61,AY=-131,AZ=-997,GX=-770,GY=2380,GZ=560.
I have used the example code provided in the ST's official github page(https://github.com/STMicroelectronics/STMems_Standard_C_drivers/blob/master/lsm6dsv16bx_STdC/examples/lsm6dsv16bx_read_data_polling.c).
I'm able to see the changes in output during movement, & there seems to be less change in output while the sensor is static.
The thing is, how can I confirm if this value that i'm getting is correct/accurate? is there any way to confirm/evaluate this value?

[Federica Bossi]

Hi @Varsha ,

Which is the unit of those values? LSB? And which is the FS and ODR you set?

By the way, seeing some fluctuations when the device is static is normal, it could be due to vibrations from the environment for example.

[Varsha]

@Federica Bossi unit of those are mg & mdps. 
For accelerometer full scale is set to 2g, & odr is set at 1920Hz.
For gyro full scale is set to 2000dps, & odr is set at 1920Hz

[Federica Bossi]

Hi @Varsha ,

I confirm you that your values are reasonable, the Y gyro axis is a little bit high but it could be due to the position of the device.

Hope this helps.

[Varsha]

@Federica Bossi Thank you!
Could you please let me know the procedure / known reference values to validate and calibrate the data?

[Federica Bossi]

Hi @Varsha ,

There aren't reference values to share because it depends on the position of the device and there is also a piece to piece variability.

I did a short acquisition keeping the sensors in a steady position on my desk and I obtained these values:

A_X [mg]	A_Y [mg]	A_Z [mg]	G_X [dps]	G_Y [dps]	G_Z [dps]
48.068	-25.925	1031.33	-0.18813	0.34125	-0.14438
50.142	-26.474	1030.66	-0.1575	0.328125	-0.17938
50.447	-26.169	1029.86	0.0175	0.214375	-0.24938
54.168	-27.267	1030.35	0.065625	0.406875	-0.16188
49.41	-23.241	1032.24	-0.04375	0.55125	-0.1575
51.179	-25.376	1030.41	-0.0875	0.39375	-0.10063
50.142	-25.742	1034.38	-0.07438	0.441875	-0.13125
50.874	-27.572	1028.15	-0.10063	0.450625	-0.20125
51.362	-22.875	1031.2	-0.10063	0.42	-0.21438
48.007	-25.376	1028.4	-0.09188	0.573125	-0.175
49.288	-24.461	1030.17	-0.16625	0.4725	-0.15313
51.789	-27.45	1031.69	-0.0175	0.240625	-0.19688
53.741	-28.731	1030.9	0.231875	0.205625	-0.28
50.203	-24.156	1029.98	0.16625	0.310625	-0.11813
48.922	-27.328	1030.6	-0.07875	0.30625	-0.10063
50.02	-30.073	1028.09	-0.07438	0.30625	-0.17938
51.24	-26.474	1026.93	0	0.240625	-0.23188
50.63	-25.376	1032.97	-0.28438	0.188125	-0.23625
48.922	-29.28	1031.63	-0.49438	0.16625	-0.28
47.641	-28.67	1029.92	-0.2975	0.25375	-0.21