Main Page | See live article | Alphabetical index An accelerometer is a device for measuring acceleration and the effects of gravity. According to the principles of special relativity, the effects of gravity are equivalent to those of acceleration, so an accelerometer can make no distinction between these effects. Accelerometers are used in inertial guidance systems, as well as in many other scientific and engineering systems. Types of accelerometer: capacitative optical piezoelectric MEMS See also: gyroscope External links Trends in accelerometer design Analog devices application note: Accelerometer Design and Applications This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.