Transcription of Tilt Sensing Using Linear Accelerometers
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Tilt Sensing Using Linear Accelerometers
Freescale SemiconductorDocument Number: AN3461 Application NoteRev. 6, 03/2013 2007-2009, 2012-2013 Freescale Semiconductor, Inc. All rights Sensing Using a Three- axis Accelerometerby: Mark Pedley1 IntroductionAccelerometers are sensitive to both Linear acceleration and the local gravitational field. The former provides information on taps and other handset motions allowing the development of 'gesture' user interfaces while the latter provides information on the accelerometer orientation which allows a smartphone or tablet display to automatically switch between portrait and landscape application note documents the mathematics of orientation determination Using a three- axis accelerometer. The techniques are applicable to both digital Accelerometers and, after signal digitization, to analog Accelerometers .
orientation determination using a three-axis accelerometer. The techniques are applicable to both digital accelerometers and, after signal digitization, to analog accelerometers. For convenience, it is assumed that the accelerometer is mounted in a smartphone or tablet but the arguments apply to any product with an embedded three-axis ...
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