Noncontact optical strain gage delivers complete 3D surface measurement insight

Trilion Quality Systems’ (King of Prussia, Pa., U.S.) Aramis optical strain gage is a state-of-the-art, noncontact measuring solution designed to capture high-resolution full-field strain, 3D displacement and even vibration data with high precision. Unlike traditional strain gages or extensometers, Aramis is reported to deliver a vast amount of data in a fraction of the time, offering up to 100 times more measurement insight, while being up to 10 times more cost-effective and requiring 50 times less labor.

At the heart of Aramis lies 3D digital image correlation (3D-DIC), a highly accurate optical technique that uses digital image tracking and advanced correlation algorithms. By analyzing surface patterns (such as stochastic speckle patterns or point markers), the system maps 3D coordinates and calculates full-field strain and displacement with subpixel-level accuracy, often reaching microns of resolution. This makes it an ideal alternative to mechanical measuring tools, especially when precision, repeatability and versatility are critical.

The Aramis system is completely material-independent, making it highly adaptable for use across a wide range of testing environments and material types. Its flexibility and robust capabilities make it optimal for finite element analysis (FEA) validation, material characterization, fatigue and durability testing, structural health monitoring and dynamic testing using high-speed cameras.

According to Trilium, industries ranging from automotive and aerospace to biomechanics and civil engineering rely on Aramis for accurate, efficient and comprehensive optical measurement. Whether conducting tensile tests, crash simulation or real-world operational analysis, the optical strain gage enables engineers and researchers to see how materials and structures behave in three dimensions, down to the smallest detail.

Aramis is also easy to integrate into existing test setups and workflows. From small-scale lab environments to large structural tests, the system delivers scalable performance and reliable results. Users benefit from fast test cycles, enhanced data visualization and simplified reporting — all of which support smarter engineering decisions.