I didn't any information in the datasheet for center of (MEMS) sensor mass for the X/Y/Z axis. Is this information available?
Thank you for posting this question. I must admit that I am a little bit confused by what you are asking for. The Center of Gravity (COG) is not axis-specific, so my confusion is coming from presuming otherwise. Am I misunderstanding?
Assuming that I am misunderstanding and that you need the COG of this package, I would recommend assuming the geometric center of the package as my starting point. Do you have a specific accuracy requirements for this attribute?
No, not the COG of the package, rather the center to seismic mass; that is for the accelerometer sensors.
I want to mount this on a spinning tube on axis to minimize any cross axis components. To do that the sensitive axis needs to be mounted tangent to the tube and on center axis.
Thank you! Ok, so it sounds like you are looking for the origin, which you are equating to the “seismic mass” of the actual sensing element. We would still be curious to understand what level of precision is actually necessary for you to be successful in this application. I will see what is available. This might take a few days. Thanks again!
Any update on this?
The application is simple. The sensor is mounted on a rotating fixture. If there is any offset of the sensing element from the radius then the angular acceleration component will show up on two axes instead of one making our computations more difficult due to the cross axis response.
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