This research focuses on designing, fabricating, and testing a strain sensor for different soil applications. Using finite element modeling and analysis, the initial dimensions of the diaphragm were designed, and a diaphragm diameter of 1.35 cm with a thickness of 300 μm was chosen. The fabrication process of the sensor prototype is discussed in this paper along with the design for specific test benches to test the electrical and mechanical characteristics at different stages of fabrication. Displacement tests on the sensor diaphragm were performed and the corresponding voltages produced were tabulated. A maximum displacement of 250 μm was achieved producing a maximum voltage of 7.3 mV. The voltage produced by the sensor was recorded using LabVIEW, and its values were tabulated and plotted against corresponding displacement and strain magnitudes.

This content is only available via PDF.
You do not currently have access to this content.