Defense Acoustics

Trusted Partner in Defense and Aerospace Test & Measurement

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GRAS Sound & Vibration recognized under the Danish Industrial Cooperation Framework

GRAS Sound & Vibration is proud to be recognized as an eligible Danish supplier under the Danish Industrial Cooperation Framework for Defence Procurement, administered by the Danish Business Authority (Erhvervsstyrelsen).

This framework enables foreign defence contractors — listed as Foreign Obligors — to collaborate with approved Danish companies like GRAS to fulfil their industrial cooperation (offset) obligations in Denmark.

With a long legacy in high-precision acoustic and vibration measurement,

GRAS is a global leader supporting defense partners worldwide with advanced acoustic sensor solutions for noise and structural-acoustics testing. Furthermore, we specialize in enabling critical defense applications, including drone detection, sniper detection, and artillery detection, while driving technology transfer and fostering local value creation within the international defense ecosystem.

Defense Acoustics — Trusted Partner in Defense and Aerospace Test & Measurement

From aircraft cabins to stealth materials — GRAS Sound & Vibration provides high-precision acoustic measurement solutions trusted by defense and aerospace organizations worldwide.

Over 30 years of experience in precision acoustic testing.

Supplier to major aerospace and defense programs (NATO, Airbus, DLR, NASA, etc.).
Expertise in high-intensity sound environments.
Solutions designed for reliability, accuracy, and extreme durability.

Applications Across Defense and Aerospace Testing

Segment	Example Applications
Aircraft & Rotorcraft	Interior noise, aeroacoustics
Naval & Marine	Machinery noise monitoring, Acoustic stealth analyses
Vehicle & Armored Platforms	Cabin noise, blast pressure, Crew health & safety
Weapons & Munitions	High-level pressure and transient sound testing
eVTOL & Drones	Propeller noise, certification testing
Personal Protection	Helmet and communication system acoustic validation

Key GRAS Solutions for Defense

Product	Description
GRAS UTP Microphone Series	For ultra-thin, aerodynamic flush-mount measurements on aircraft and vehicles.
GRAS EQset™ Microphones	Precision self-verified microphones that eliminates the need for calibration in demanding field setups.
GRAS AutoKEMAR	Advanced head & torso simulator for testing communication systems and intelligibility
GRAS ANSI Head & Shoulder simulator	Armored vehicle H&S assessment

Compliance & Certification

Meeting the Highest Standards

List of relevant compliance frameworks and affiliations:

Trusted by DALO and the Danish Ministry of Defence.
Supports NATO interoperability and EU Defence procurement frameworks.
Approved Danish supplier under the Industrial Cooperation Framework (Erhvervsstyrelsen).

We offer:

Joint R&D and knowledge-transfer projects.
Technology partnerships in acoustic testing and sensing.
Local value creation and compliance with offset obligations.

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