From R&D to the Production Line
Catch Defects Before They Ship
One light tap reads a part's resonant signature: the frequencies that reveal its stiffness and expose the cracks and porosity hiding inside. Non-destructive quality control in seconds, across 100% of your production.
Trusted by Audi, Mercedes, Safran, Saint-Gobain, TAG Heuer and more
Illustrative model
One bad part costs more than testing every part
Put in your own cost of failure and volume. For a safety-critical part, testing every one costs less than shipping a single bad one.
One part slips through
€500,000
One defective part in the field can mean a recall, liability, line downtime, and a lost customer. Put your own number here.
You test every part
< 3 s each
IET taps every part in under three seconds, with no consumables and pennies per test. At that price you check all of them, not a sample.
It pays for itself
1 caught part
Catch one bad part before it ships and the system has paid for itself. The rest is margin you keep.
Illustrative figures, not a customer result. Swap in your own cost of failure, volume and per-test cost to model your line.
Run the numbers for your lineSolutions by industry
Find IET for your industry
Three ways in
Guides, research, and results
It comes down to one tap. In under a second, a material’s ring reveals what a destructive test needs a broken sample to find: stiffness and elastic moduli in its pitch, hidden microcracks in how it fades. No cutting, no load, no guesswork.
01Results
Case Studies
Real results from production and the field, anonymized and backed by measurement data.
02Research
Library
Peer-reviewed research where IET characterizes real materials, each with its source.
03How it works
Guides
From first principles to standards and methods, how the technique actually works.
How It Works
Simple, Fast, Non-Destructive
IET reads a part's natural vibration frequencies to measure its properties and flag the defects that shift them. No sample prep, no damage, a result in under a second. Fast enough to test every part on the line.
Tap the Sample
A light mechanical impulse excites the material's natural frequencies.
Capture the Resonant Signal
A sensor records the resonant response with 0.1ppm resolution.
Get Results Instantly
E, G, Poisson's ratio, and damping calculated in under one second.
Years of Innovation
Independent Validation
Trusted by Metrology Institutes and Universities
Research groups of Materials Engineering at KU Leuven explore, develop and characterize novel materials ranging from composites to 3D printed metals and ceramics. The Grindosonic HT1200 allows the researchers to better understand the microstructural evolution during heat treatment by in-situ monitoring of the mechanical response. (stiffness and damping)
Dr.-Ing. Pierre Vancauwenbergh
KU Leuven
After a close, cordial, collaboration with GrindoSonic to demonstrate the benefit of their system, LNE has purchased one of them which has the particularity to enable complementary linear and nonlinear tests, and to display waterfall plot of the results, which is a very evocative way. The collaboration between LNE and GrindoSonic has resulted in two peer review articles and two communications in conferences.
Dr. Habil. Anne-Françoise Obaton
LNE
Different materials are investigated within the scope of various research projects at the Hochschule Bonn-Rhein-Sieg (H-BRS) such as ceramics, metals, intermetallic alloys, and polymers. The IET-system is applied for either high temperature applications (ceramics, metals, etc.) with an automatic device shooter or room temperature applications (polymers) with a manual device shooter.
Prof. Dr.-Ing. Christian Dresbach
Hochschule Bonn-Rhein-Sieg
News & Insights
Latest insights
ASTM C215 and Carbon/Graphite Testing: Why ASTM C747 Is the Right Standard
ASTM C215 is a concrete resonance standard, not a carbon or graphite one. Learn which standards actually apply to carbon and graphite — ASTM C747 and E1876 — and how the Impulse Excitation Technique measures their elastic properties non-destructively.
Determining the Dynamic Young's Modulus of Carbon and Graphite in Hot Cell Environments Using Impulse Excitation Testing
Learn how dynamic Young's modulus of carbon and graphite can be determined in hot cell environments using non-destructive impulse excitation testing, including practical considerations, applicable standards, and measurement challenges.
Dynamic Young's Modulus vs Static Young's Modulus for Graphite: Understanding the Difference
Learn the difference between dynamic and static Young's modulus for graphite, how each property is measured, and why dynamic measurements using Impulse Excitation Technique are valuable for material characterisation.
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See How It Works With Your Materials
Send us your samples and we'll test them. See real results before you commit.