Tuesday, 17 February 2015

Week 3

Title: Introduction to piezoelectric

Objective: 
  1. To study about piezoelectric.
  2. To get further information on how piezoelectric working principles.

Method:
1.   Do more research on internet about piezoelectric.
2.   Find the theory of piezoelectric.

Result:


Piezoelectric is a device that convert the mechanical energy to electrical energy, when we apply the pressure on the piezoelectric like we press on it and it will produce the electricity in small value. The piezoelectric effect was discovered in 1880 by two French physicists, brothers Pierre and Paul-Jacques Curie, in crystals of quartz, tourmaline, and Rochelle salt (potassium sodium tartar). They took the name from the Greek work piezein, which means "to press".  

Piezoelectric elements are custom made to suit the application requirements, like powered up the LED signage from the passing trains, monitor industrial machinery from vibrations, power the wireless sensors or low power electronics and etc.

The material group for piezoelectric devices is piezocrystal, and piezopolymer is experiencing the fastest growth due to its low weight and small size, which highly demand in the market.



Conclusion: This week, I have learned and understand more about my project. Besides that, I found out that the piezoelectric can be used in many way base on its application and can be modified to fulfill its requirements.  

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