What is the frequency range of LSM6DSL sensor?

[SNik.1]

Hi,

I am using LSM6DSL Click Board to measure an expected frequency of 1hz. The datasheet seems to be very vague on this, or I might have missed it. If anyone knows on this information, please share.

Thanks

[Eleon BORLINI]

Hi @SNik.1​ , the LSM6DSL sensor frequency range is at first determined by the selected ODR, going up to MAX_ODR/2 = 6664/2 = 3333Hz, following Nyquist theorem BW = ODR /2.. The mechanical system resonance frequency is in line with this bandwidth, but please note that above 1kHz the sensitivity slightly decreases. If however you are interested in 1Hz signal recognition, you should not be absolutely afraid of this. Btw, which is the application setup (LSM6DSL click board + ?) you are using? Regards

[SNik.1]

Hi @Eleon BORLINI​ 

Thank you for the clarification.

The LSM6DSL Click Board is set up to communicate to STM32F767ZI-NUCLEO through I2C. I guess the root to my question is to find out whether LSM6DSL is sensitive enough to detect 1Hz vibration frequency as I am not getting the expected frequency after FFT. Instead, I got DC offset .

[Eleon BORLINI]

Hi @SNik.1​ , the minimum detectable signal is 0.061mg, so I really think this is your case. Also the time accuracy should be fair. Can you please tell me the working condition of your application in terms of ODR,, Full Scale, device configurations, etc? Regards