Piezoelectric Accelerometers
by f3lix-tutorial
the extensive knowledge base on
piezoelectric accelerometers
f3lix-tutorial.com brings you closer to the world of vibration sensors.
This tutorial is to pass on the basic knowledge about piezoelectric accelerometers and related know-how. It is a practical tool for the training of newcomers to the field of piezoelectric vibration sensors.
You will learn how a piezoelectric accelerometer works, what is piezoelectricity, how to design a vibration sensor, and what the typical sensor characteristics are.
I would like to share with you a part of my 35 years of professional experience in the field of vibration, piezoelectricity and accelerometers.
Understand Piezoelectric Vibration Sensors in 5 chapters
We start with a look at some basics of the physics of motion to understand the common vibration representations: Displacement, velocity and acceleration and their mutual dependency.
There is also an excursion into vibration analysis to explain the representation of a frequency spectrum and what is a Fast Fourier Transform FFT.
What is electric charge? Here you will find an answer.
The piezo effect is explained by a video and a step by step introduction into the function of piezo materials: Single crystals and piezo ceramics. Followed by a detailed explanation of the piezoelectric constants and a review of the most important material characteristics.
The basic physical function and a step by step assembly procedure of an accelerometer. Explanation of the different functional modes (compression, shear, etc.) and a few thoughts on parts design.
Concluding by a large section on EMI protection and signal conditioners, charge amplifier and IEPE (integrated electronics piezo-electric)
5. Disturbing Factors
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Profit from this Tutorial
follow the indicated path, which leads logically trough all subjects.
This course is particularly thought for persons who do not have a technical background. Nevertheless to understand the subject we will need to look in some physics. I tried my best to make the explanations as easy as possible.
You don't need to remember everything but try to work yourself along the indicated path.
There are two paths leading trough all chapters:
If you don't have a distinct technical background the green path is perfect for you. It is leading logically trough all subjects and touching a basic level of understanding.
To navigate along the green path just use the green CONTINUE buttons.
In some places there is a yellow path going to some deeper level. If green is "cold coffee" for you then the yellow path and red pages might be more suitable for you.
Just follow the yellow CONTINUE buttons.
The red pages contain some more mathematical information.
Just use the RED PAGE button.
Under this sign you will find additional information.
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