I have a analog MEMS accelerometer MMA from freescale and I am trying to connect to my application to monitor the impact. During my initial test, I found I can see a signal peak whenever a thurst/force is applied to the surface where the sensor is attached. However, signal peak are missing during the continuous thrust/force action.
- Wondering why I am missing the continuous peak?.
- Is it related to sampling rate?...I tried 1K to 3K and I still see missing signal.
- Or It is related to sensor type?
Regards,
Amit
Your terminology is unclear. When a constant force is applied, there will be a constant acceleration with continuously increasing velocity. Your accelerometer should be reporting a constant non-zero value in that case. You seem to be implying with your "continuous" language that velocity is constant. In that case, there is no acceleration and the accelerometer should report a constant zero value. If this is not the situation, please clarify.
For experiment, I attached the accelerometer sensor on the table. Initially to test, I tap once on the table where the sensor is attached and I can see signal peak.
Then, I tap multiple times on the table at 1 sec interval. I can see only few peak.
Is it related to low sampling rate or MEMS is not good for the same (or piezoelectric accelerometer is good)?
what kind of accelerometers are using in your work
accelerometer and sensors have different starategies.
- Badges
- Science topic
- Similar topics
- Methodology
- Sensors