What is the Relationship Between Piezoelectric Materials and Electrical Output?

In summary, the conversation discusses the maximum amount of electricity that can be obtained from piezoelectric materials and whether there are any resources or tables available for this information. The speaker mentions that piezoelectric solids produce low-current voltage pulses when deformed and suggests looking at the Wikipedia article on piezoelectricity and its reference links for more information. They also reference a specific energy harvesting device and mention that realistic loads typically result in currents in the 50-100uA range. The conversation ends with a mention of simple linear equations for piezo generators that use different methods of applying mechanical stress.
  • #1
physior
182
1
hello!

what is the maximum of electrism we can get from piezoelectric materials? can you give me some examples, or are there any tables, showing for each gram of piezoelectric material, applied a force of 1N, we get 1 ampere constant(?) current or something?

thanks!
 
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  • #2
Piezoelectric solids give a low-current voltage pulse as they are deforming. I don't know of any tables.
 
  • #3
The Wikipedia article on piezoelectricity has discussions. The reference links in the article point to places where you might find the data you seek.
 
  • #4
This is a typical small 'energy harvesting' device operational parameters.
http://www.mide.com/pdfs/Volture_Datasheet_001.pdf [Broken]

Expect to see currents in the 50-100uA range with realistic loads.
 
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  • #5
This is a reference to simple linear equations for piezo generators using different methods of applying a mechanical stress.

tech2intropiezotrans22.jpg
 

1. What is piezoelectric generation?

Piezoelectric generation is the process of converting mechanical energy into electrical energy using piezoelectric materials. These materials have the ability to generate an electric charge when subjected to mechanical stress, such as pressure or vibration.

2. How does piezoelectric generation work?

Piezoelectric generation works by utilizing the piezoelectric effect, which is the ability of certain materials to generate an electric charge when subjected to mechanical stress. When a piezoelectric material is compressed or stretched, it creates a voltage difference between its surfaces, which can be harnessed to generate electricity.

3. What are some common applications of piezoelectric generation?

Piezoelectric generation has a wide range of applications, including in sensors, actuators, energy harvesting, and medical devices. It is also commonly used in everyday items such as lighters, speakers, and pressure sensors.

4. What are the benefits of piezoelectric generation?

Piezoelectric generation offers several benefits, including its ability to efficiently convert mechanical energy into electrical energy without the need for additional power sources. It is also a clean and renewable source of energy, making it an attractive option for sustainable power generation.

5. What are the limitations of piezoelectric generation?

One limitation of piezoelectric generation is its relatively low efficiency compared to other forms of energy generation. It also requires a constant source of mechanical stress to produce electricity, which may not be feasible in all situations. Additionally, the cost of piezoelectric materials can be high, making it less accessible for widespread use.

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