How Many Joules Can Be Extracted from Piezoelectric Quartz When Struck with a Hammer?

In summary: I cannot say how much energy can be generated from the quartz since it depends on experimentation.In summary, when hitting piezoelectric quartz with a hammer with 100 joules of kinetic energy, less than 100 joules of electrical energy can be obtained due to the concept of efficiency. However, it is impossible to determine the exact amount as it depends on experimentation and the result may just be broken quartz crystals.
  • #1
ANarwhal
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Lets say I have a hammer, and a piece of piezoelectric quartz. If I hit the quartz with the hammer with the kinetic energy of 100 joules, how many joules can I get out of the quartz?
 
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  • #2
ANarwhal said:
Lets say I have a hammer, and a piece of piezoelectric quartz. If I hit the quartz with the hammer with the kinetic energy of 100 joules, how many joules can I get out of the quartz?

After researching a lot on word "piezoelectric" , I think that your question can just be answered by the usual concept of "efficiency". So in this case when we hit "piezoelectric quartz" with hammer with the kinetic energy of 100 joules, we will probably get less than 100 joules of "electrical" energy out of the quartz. This is because no object is 100% efficient. Some of the kinetic energy is used up in vibrating the molecules and internal resistance , etc... I CANNOT say exactly how much less can be obtained (that depends on experimentation now ).
 
  • #3
ANarwhal said:
Lets say I have a hammer, and a piece of piezoelectric quartz. If I hit the quartz with the hammer with the kinetic energy of 100 joules, how many joules can I get out of the quartz?

I think the result of your experiment will not give you any "joules". In my estimation, you will have only a pile of broken quartz crystals.
 

What is piezoelectric efficiency?

Piezoelectric efficiency is a measure of how well a material converts mechanical energy into electrical energy. It is typically expressed as a percentage and can vary depending on the properties of the material.

What factors affect piezoelectric efficiency?

There are several factors that can affect the efficiency of a piezoelectric material. These include the composition and crystal structure of the material, the direction and magnitude of the applied force, and the temperature and humidity of the environment.

How is piezoelectric efficiency measured?

Piezoelectric efficiency can be measured using various techniques such as the d33 coefficient, which measures the displacement of the material when an electric field is applied, or the g33 coefficient, which measures the electrical charge generated when the material is subjected to mechanical stress.

What are some common applications of piezoelectric materials?

Piezoelectric materials have a wide range of applications, including sensors, actuators, energy harvesters, and transducers. They are commonly used in medical devices, consumer electronics, and industrial equipment.

How can piezoelectric efficiency be improved?

Improving piezoelectric efficiency can be achieved through various methods such as optimizing the composition and crystal structure of the material, applying a poling process to align the crystals, and using advanced manufacturing techniques such as thin film deposition. Research and development in this field are ongoing to improve the efficiency of piezoelectric materials for various applications.

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