This document discusses accelerometers and their types and applications. It describes four main types of accelerometers: mechanical, capacitive, piezoelectric, and micro-chip. It explains that accelerometers measure acceleration forces and the majority are based on piezoelectric crystals. Some applications of accelerometers mentioned include engineering, industry, medical, navigation, and safety features in automobiles like airbags. The document also discusses using accelerometers for vibration monitoring of machines to observe machine health.

1. Topic :- Accelerometer
Subject :- Analog and Circuits and Instrumentations
Made by:- Faculty guide:-
Shyam Bhatti 14103195 Shweta Dour
Swapnil Patel 14103158
NAVRACHANA UNIVERSITY

2. CONTENTS…….……………………………………………
• Introduction to Accelerometer
• Types of Accelerometer
• Working of MEMS
• Applications of Accelerometers
• Vibration Monitoring
• References

3. WHAT IS ACCELEROMETER?
• An accelerometer is an electromechanical
device that measures acceleration forces.
• The vast majority is based on
piezoelectric crystals, but they are too big
and to clumsy.

4. DIFFERENT TYPES OF ACCELEROMETERS
• Mechanical Accelerometer
• Capacitive Accelerometer
• Piezoelectric Accelerometer
• Micro – Chip Accelerometer

5. MECHANICAL ACCELEROMETER

6. CAPACITIVE ACCELEROMETER

7. PIEZOELECTRIC ACCELEROMETER

8. MICRO – CHIP ACCELEROMETER

9. APPLICATIONS OF ACCELEROMETER
• Engineering (Gesture Controlled Robots)
• Industry (Vibration Monitoring)
• Medical applications (can be helpful in making artificial organs)
• Navigation (GPS systems)
• Safety Air bags in Automobiles

10. VIBRATION MONITORING APPLICATION
• This method is used where there are devices who have
motors or any type of rotating element.
• It is known that any motor or any other rotating mechanism
will have vibrations during its working condition.
• MEMS sensor is used to keep track of these vibration so
that the machine health can be observed.

11. WORKING OF MEMS

12. • SAMPLE GRAPH OBTAINED DURING WORKINGS

13. REFERENCES
• http://www.explainthatstuff.com/accelerometers.html
• Sensor Technology Handbook by Jon S. Wilson. Newnes, 2005.
A practical guide to choosing and using sensors.
• An introduction to Vibration Monitoring Applications by
Mark Looney - Analog Dialogue 48-06, June (2014)