Piezoelectric Sensor for Vibration

What is an FYP ?

Before picking  a sensor technology you should define the required performance specification. There are now silicon MEMs accelerometers quite suitable for measuring vibration on motors in some applications. There is a lot of material and experience of condition monitoring accesible via the web.

You should also decide if you want to try and design your own accelerometer or to buy one ready made.

Google 'condition monitoring vibration' for background then 'monitran', 'endevco', 'analog devices' for some accelerometers (or even 'accelerometer')

MK

FYP is Final Year Project

I decides on designing my own accelerometer using piezo, which element or components i should get? u got any suggestion? cus I'm very new to this field..

If you are asking questions like this you really are in no position to design an accelerometer. It's not  matter of buying  a few standard parts and screwing them together. You will first need a good understanding of mechanical engineering, phyiscs and the electro-physics of piezo electric materials.

If you trawl the web and look at other peoples' commerical designs you will be able to make a bad copy of one of their simpler ones - what's the point in that ?

I would strongly recomend that you buy a ready made sensor and concentrate on the signal processing and data presentation aspects (unless I'm mistaken and you are actually studying physics/mech eng).

MK

I'm with Electrical & Electronic.. Is it impossible to build an sensor? then which ready made sensor or transducer u suggest me to use as vibration monitoring?

Work out what you want to measure and follow up the links I gave you earlier. Their are zillions of parts available - you need to have an idea of the spec you need and price range before anyone could make a recommendation.

MK