How is turn-on to turn-on bias repeatability typically calculated? More specifically is the sensor data averaged for 10 seconds (for example) for each turn-on and then the range of these averages is reported as the repeatability?
Thank you for your post. Which product are you referring to?
I am using the ADXL372 and have begun to investigate how much its bias varies from turn-on to turn-on. I don't believe this information is listed on the datasheet, but I just wanted to try and characterize it in a way that would allow comparison from one sensor to another and hopefully to values listed on other sensor datasheets.
For instance if I average 50 data points for 10 different runs I get an average range of 29mg (average of the 10 runs).
Thanks for your question and your interest in the ADXL372. On this 200g part, we haven't specifically characterized the bias repeatability since it's a high g part and RMS noise is about 350mg, but that should be very limited over a short term. I think most of the applications for impact detection will focus on the AC impact signal, where the repeatability error can be ignored compared to the impact. Maybe you describe more on what application you are working on and why you are interested in the spec? Thanks.
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