MEMS and Sensors
iMEMS® Accelerometers
iMEMS® Gyroscopes
Analog Temperature Sensors
Digital Temperature Sensors
Accelerometer Design and Applications
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Applications and Uses of Accelerometers

What can I do with an accelerometer?

Inertial measurement

Inertial sensing for Airbag Crash Detection

Using accelerometers in machine condition monitoring

Tilt sensing example

Why should I consider using an accelerometer?

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Micromachining Technology Overview

What is a Micromachine? ADI's implementation

Die size and cost per axis is decreasing

New technology reduces the cost of sensing

Sensor Operation

Sensor operation; ADI's implementation

Self test operation

Surface Micromachining

Interesting Facts

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Choosing an Appropriate Technology for Acceleration Sensing

Design Focus

Choosing an appopriate technology

Comparison of approaches to acceleration sensing

Comparison of various technologies

Future roadmap

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Accelerometer Basics

Overview: Specifications

Acceleration is a vector

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Tilt Sensing

How the accelerometer output changes with tilt

How a "DC" accelerometer responds to tilt

Data acquisition: Tilt

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Inertial Sensing for Velocity and Position

Data acquisition: Inertial

Practical inertial applications

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Techniques for Improving Resolution in Tilt and Inertial

Designing for tilt sensing

Resolution limited by accelerometer 'noise'

Noise in micro-machined accelerometers

Resolution is generally limited by noise

RMS noise Vs. peak to peak noise

A/D converter resolution

Digital trickery

Some possible designs

More digital trickery

Pitfalls: Acceleration interferes with tilt signal

Solutions to the problem of bias stability: Correcting for temperature drift and long term stability

Using accelerometers as tilt sensors

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Vibration Sensing

Data acquisition: Vibration and shock

Characteristics of vibration

Special techniques to recover signal from noise

What if we add a bandpass filter?

Pros and Cons of Micromachined Sensor

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Calibration Techniques

Calibration methods

Summary

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