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View project and guideProjects / Mechanical / Project 44
Strain-Gauge Load Cell: Build and Calibrate
Approx. component budget: Rs. 4,000 - 8,000
Objective
Design, build and calibrate your own load cell and find its accuracy, linearity and drift.
What you will build
A metal bending beam with strain gauges in a Wheatstone bridge, an HX711 amplifier with a microcontroller and display, and a holder for calibration weights.
Results you can expect
- Calibration curve
- Linearity error
- Repeatability
- Hysteresis
- Comparison with a ready-made load cell
What you will learn
Strain gauges, bridge circuits, calibration and measurement uncertainty, core skills for testing and quality roles.
Tools and notes
HX711 + Arduino, strain gauges, calibration weights, Excel. Careful gauge bonding and wiring are needed.
Resume points from this project
- Built and tested Strain-Gauge Load Cell: Build and Calibrate; objective: design, build and calibrate your own load cell and find its accuracy, linearity and drift.
- Measured and analysed calibration curve and linearity error; 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.
Get the Rs. 99 project guide
A short guide that helps you decide and prepare. It contains:
- A diagram of the project
- How it works, in simple words
- The main parts you will need
- What workshop or lab you need and how hard it is
- Results you can expect
- Viva questions you should be able to answer
We send the PDF on WhatsApp after your payment is confirmed. Payment details are shared in the chat.
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