Abstract
Strain gauges are essential in various industrial applications. Commercial strain gauges are developed using Constantan and Karma alloys due to their low temperature sensitivity. Creating alloy inks for printing poses challenges due to high sintering temperatures. Consequently, printed strain gauges (PSGs) are typically made using inks based on silver and carbon. However, the temperature coefficient of resistance (TCR) of these inks is high. In this work, a unique composite was developed using screen-printable ink with silver-coated glass (AgG) particles. The objective of this composite formulation was to increase strain sensitivity while reducing the temperature dependence of the printed strain gauges. The PSGs made with the composite showed a greater gauge factor of 60. Comprehensive characterization of the PSG, including environmental testing, cyclic strain performance, and dynamic strain responsivity, demonstrates the effectiveness and reliability of the developed composite.
| Original language | English |
|---|---|
| Title of host publication | AMA Association for Sensors and Measurement |
| DOIs | |
| Publication status | Published - 1 Sept 2024 |
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