The Power of Laser Light: Non-Contact Strain Measurement Revealed!

Описание: Here you can see how strain can be measured without touching the specimen – using advanced laser light technology. Especially when testing small, fragile, or extremely hot materials, traditional extensometers reach their limits.

The solution? Optical systems with lasers and cameras that use a method called laser speckle tracking. The strain is then measured completely contact-free and without the need to mark the specimen.

Different laser colors are used depending on the temperature:
Red – standard for temperatures up to 900 °C
Green – performs better at high temperatures up to 1200 °C
Blue – ideal for ultra-high temperatures up to 2000 °C

Key advantages at a glance:
✔ No contact with the specimen
✔ No interference with test results
✔ Works at temperatures up to 2000 °C
✔ Faster and simpler setup

Perfect for modern materials testing – it’s faster, safer, and more precise!



00:00 - Intro
00:30 - Laser speckle tracking
01:00 - Laser colours
01:17 - Why choose lasers?