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How does adxl345 measure vibration?
The ADXL345 accelerometer is used as a sensor for measuring vibrations. The ADXL345 is a miniature triaxial digital accelerometer from Analog Devices Co. with low power consumption, high resolution (13 bits) and a range of acceleration measurement up to ±16 g.
What does adxl345 measure?
The ADXL345 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g. It measures the static acceleration of gravity in tilt-sensing appli- cations, as well as dynamic acceleration resulting from motion or shock.
How does a 3 axis accelerometer work?
Triaxial accelerometers measure the vibration in three axes X, Y and Z. They have three crystals positioned so that each one reacts to vibration in a different axis. The output has three signals, each representing the vibration for one of the three axes.
What is digital accelerometer?
Accelerometers are devices that measure acceleration, which is the rate of change of the velocity of an object. They measure in meters per second squared (m/s2) or in G-forces (g). Accelerometers are useful for sensing vibrations in systems or for orientation applications.
What is the sensitivity of the adxl345 digital accelerometer?
The ADXL345 features 4 sensitivity ranges from +/- 2G to +/- 16G. And it supports output data rates ranging from 10Hz to 3200Hz. The sensor consists of a micro-machined structure on a silicon wafer.
Can a Arduino interfacing with an adxl345?
ADXL345 interfacing with the Arduino is simply to connecting the I2C interface as above. The I2Cdevlib has ADXL345 library code as well as code for many other devices.
How big is the resolution of the adxl345?
It can measure accelerations up to 16g with 13bit resolution translating to a resolution of 3.9mg (g representing gravity at 9.8m/s 2 ). To make it more useful, it has several built in functions: Thresholds. Tapping. Falling. Self test.
Is the i2cdevlib compatible with the adxl345?
The I2Cdevlib has ADXL345 library code as well as code for many other devices. This library has a lot of features, supported chips, and can operate on multiple processors but it is a little more involved to install and you can not use the automatic Arduino zip file installer.