Accelerometer
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 Galaxy Nexus, an example of a smartphone with a built-in accelerometer |
An accelerometer is a device that measures proper acceleration, also called the four-acceleration. This proper acceleration is associated with the weight of a test mass. For example, an accelerometer on a rocket far from any gravitational influences (assume gravitation is zero) that is accelerating through space due to the force from its engine, will measure the rate of change of the velocity of the rocket relative to any inertial frame of reference, because such changes require application of a (rocket) force that can be felt (as weight), for any mass. However, the proper acceleration measured by an accelerometer is not necessarily the coordinate acceleration (rate of change of velocity), when gravity becomes involved.
- Related: g-force, Geophone, Gyroscope, Inclinometer, Seismometer
| Thinking About Accelerometers and Gravity by Dave ... Thinking About Accelerometers and Gravity by Dave Redell, LUNAR #322 www.lunar.org/docs/LUNARclips/v5/v5n1/Accelerometers.html - Web |
| Practical Guide to Accelerometers Practical Guide to Accelerometers www.sensr.com/pdf/practical-guide-to-accelerometers.pdf - Web |
| How to Design an Accelerometer How to Design an Accelerometer www.memsuniverse.com/?page_id=1548 - Web |
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| Different types of Accelerometer Different types of Accelerometer www.sagem-ds.com/eng/site.php?spage=02010301 - Web |
| Considerations When Selecting an Accelerometer Considerations When Selecting an Accelerometer www.pcb.com/techsupport/docs/vib/TN_17_VIB-0805.pdf - Web |
| Introduction to Accelerometer Basics: Designs, Con... Introduction to Accelerometer Basics: Designs, Conditioning, and Mounting www.pcb.com/techsupport/tech_accel.php - Web |
| Database of acceleration data Database of acceleration data www.opensignals.net/index.php?title=Accelerometry - Web |
