Circuit Board Strain Gauge for Micrometer-Level Deflection Measurement
2025-05-11
This project presents an ingenious strain gauge design where the sensing element is the circuit board itself. Highly sensitive, it measures deflections in the micrometer range with a full-scale range of +/- 3cm. Utilizing a 4-element or 2-element bridge, it's hand-assembly friendly and requires no reflow oven. It can be used standalone with an integrated Seeed Studio XIAO RP2040 microcontroller or an external one. A Python script for visualization and a Jupyter Notebook for customizing the sensor shape are also provided.