See Inside Materials Without Cutting Them Open

Every part tells a story when it vibrates. With a single tap, the Impulse Excitation Technique (IET) reveals a material’s stiffness, bonding quality, and hidden flaws – without damaging it.

Unlike destructive tests, this method works directly on finished parts, delivering real physics-based measurements instead of assumptions.

Why It Matters

Most failures aren’t visible on the surface. Cracks, weak bonds, and voids remain hidden – until it’s too late. Traditional destructive testing is costly, slow, and only valid for the single sample you break.

Impulse Excitation changes the game:

  • Non-destructive – The part stays intact and usable.
  • Precise – Detects property changes and microcracks early.
  • Fast – Results in seconds, ideal for high-throughput QC.
  • Scalable – Integrates into production lines and automated workflows.

How It Works

  1. A gentle tap excites the material.
  2. Resonance vibrations form inside the part.
  3. Frequencies and damping are measured and converted into elastic properties such as:
    • Young’s modulus
    • Shear modulus
    • Poisson’s ratio
    • Damping capacity
    • Porosity indicators

Standards-based and repeatable, IET is described in ASTM E1876, C1259, C215, E3397 and more.

Proven Across Industries

Impulse excitation helps industries ensure quality, consistency, and reliability without slowing production:

  • Aerospace – Detect weak bonding in composites, validate stiffness of critical parts.
  • Automotive – Confirm consistency in castings, machined parts, and suspension systems.
  • Additive Manufacturing – Validate printed parts by checking internal bonding layer by layer.
  • Civil Engineering – Assess rebar, concrete beams, and composite structures non-destructively.
  • Luxury & Authentication – Differentiate genuine high-end components by their unique resonance.
  • Research & Advanced Materials – Track property evolution up to 1600°C with high-precision HT systems.

Why Choose GrindoSonic®

  • Proven Technology: Pioneers of impulse excitation for over 50 years.
  • Broad Material Range: From thin films (200 µm) to massive slabs and tubes.
  • High Throughput: Test up to 1000+ parts per hour.
  • Automation Ready: Seamless integration with PLC and QC software.
  • Trusted Worldwide: Used by R&D labs, production lines, and quality control teams in aerospace, automotive, and beyond.

Get Started

Curious how your parts perform?
Contact us to schedule a free feasibility test of your products or samples.

Apply for Free Feasability Test