Scribd
Upload
123 views3 pages

Mems Accelerometer

This document discusses a student's course on MEMS accelerometers. It provides information on the working principle, types, applications, and advantages of MEMS accelerometers. MEMS accelerometers measure acceleration and tilt using capacitance changes from a movable mass between fixed electrodes. The main types are capacitive and piezoresistive. Applications include use in automotive airbags and ABS, aerospace navigation, consumer electronics motion detection, and healthcare activity monitoring. Advantages of MEMS accelerometers are their small size, low power consumption, high accuracy, and low cost.

Uploaded by

Ahmed Mawrdy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
123 views3 pages

Mems Accelerometer

This document discusses a student's course on MEMS accelerometers. It provides information on the working principle, types, applications, and advantages of MEMS accelerometers. MEMS accelerometers measure acceleration and tilt using capacitance changes from a movable mass between fixed electrodes. The main types are capacitive and piezoresistive. Applications include use in automotive airbags and ABS, aerospace navigation, consumer electronics motion detection, and healthcare activity monitoring. Advantages of MEMS accelerometers are their small size, low power consumption, high accuracy, and low cost.

Uploaded by

Ahmed Mawrdy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

Mansoura University

Faculty of Engineering
Production Engineering & Mechanical Design
Department

Course Name: Production Laboratory

Instructor Name: Dr. Mohamed El-Keran

Subject: mems accelerometer

Student name: Ahmed Mohamed elshahat


Serial number : (7)
MEMS accelerometer is a micro-electromechanical system that is designed to
measure acceleration and tilt. It is a device that can detect changes in the
velocity, position, and orientation of an object. MEMS accelerometers are widely
used in various applications such as automotive, aerospace, consumer
electronics, and healthcare. This essay will discuss the working principle, types,
applications, and advantages of MEMS accelerometers.

Working principle:

MEMS accelerometers work on the principle of capacitance. The device consists


of a movable mass that is suspended by springs between two fixed electrodes.
When the device is subjected to acceleration, the movable mass moves, and the
capacitance between the two electrodes changes. The change in capacitance is
proportional to the acceleration, and this information is used to calculate the
acceleration.

Types:

There are two types of MEMS accelerometers: capacitive and piezoresistive.


Capacitive accelerometers work on the principle of capacitance, whereas
piezoresistive accelerometers work on the principle of resistance. Capacitive
accelerometers are more sensitive and accurate than piezoresistive
accelerometers.

Applications:

MEMS accelerometers are used in various applications such as:

1. Automotive: MEMS accelerometers are used in airbag systems to detect


a crash and deploy the airbag. They are also used in anti-lock braking
systems (ABS) to detect the speed and acceleration of the vehicle.

2. Aerospace: MEMS accelerometers are used in aircraft and spacecraft to


measure acceleration and orientation. They are also used in navigation
systems to determine the position of the aircraft or spacecraft.

3. Consumer electronics: MEMS accelerometers are used in smartphones,


tablets, and gaming consoles to detect orientation and motion. They
are also used in fitness trackers to measure the steps taken and calories
burned.

4. Healthcare: MEMS accelerometers are used in medical devices to


monitor the movement and activity of patients. They are also used in
prosthetic limbs to detect the movement of the limb.
Advantages:

The advantages of MEMS accelerometers are:

1. Small size: MEMS accelerometers are small in size, which makes them
ideal for use in portable devices.

2. Low power consumption: MEMS accelerometers consume less power,


which increases the battery life of portable devices.

3. High accuracy: MEMS accelerometers are highly accurate, which makes


them suitable for use in critical applications.

4. Low cost: MEMS accelerometers are relatively inexpensive compared to


other types of accelerometers.

Conclusion:

MEMS accelerometers are a vital component in various applications. They are


small in size, consume less power, and are highly accurate. MEMS
accelerometers are used in automotive, aerospace, consumer electronics, and
healthcare . The technology is continuously evolving, and we can expect to see
more advanced MEMS accelerometers in the future.

You might also like