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Piezoelectric Energy Harvesting Tile: Power vs Step Force

Approx. component budget: Rs. 3,000 - 7,000

Objective

Find how much electrical energy is collected per step and how it depends on force, number of elements and load.

What you will build

A tile with piezo discs or stacks under a spring-loaded platform, a rectifier and storage capacitor, a small boost circuit, an LED load and a force measurement arrangement.

Results you can expect

• Voltage and energy per step vs force
• Charging curve of the capacitor
• Effect of number of piezo elements
• How many steps are needed to light the LED

What you will learn

Piezoelectric effect, energy harvesting and rectifier design, with a realistic view of how little energy is produced.

Tools and notes

Piezo elements, oscilloscope or Arduino, small weights, Excel. Low-voltage, safe build, but keep the platform stable.

Resume points from this project

• Built and tested Piezoelectric Energy Harvesting Tile: Power vs Step Force; objective: find how much electrical energy is collected per step and how it depends on force, number of elements and load.
• Measured and analysed voltage and energy per step vs force and charging curve of the capacitor; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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