Aerospace & Defense Solutions

ISG Devices delivers precision measurement instruments and rugged sensing solutions trusted in aerospace and defense applications worldwide. From acoustic testing of aircraft cabin materials to fluid monitoring in military vehicles, our products are engineered for environments where accuracy and reliability are mission-critical.

Acoustic Material Testing for Aerospace

Sound absorption and transmission loss performance of acoustic treatments directly impacts passenger comfort in commercial aircraft, crew performance in military platforms, and compliance with noise certification requirements. ISG Devices' ACUPRO Measurement System enables aerospace engineers to rapidly evaluate acoustic materials under controlled laboratory conditions.

Aircraft Interior Acoustic Applications

The ACUPRO impedance tube system is used by aerospace manufacturers and their suppliers to test sound absorption of cabin sidewall treatments and insulation blankets, measure transmission loss of composite fuselage panels and multi-layer noise barriers, evaluate acoustic performance of overhead bin liners, seat back panels, and floor coverings, compare candidate materials during the design and certification phases, and perform quality control testing on incoming acoustic materials.

The system's 100-watt compression driver generates sound levels exceeding 130 dB within the impedance tube, enabling accurate measurements across the full frequency range of interest for aerospace applications. The dense, highly damped tube materials provide exceptional wall transmission loss, allowing reliable measurements even in noisy hangar or production environments.

Engine Nacelle and APU Acoustic Treatment

For engine nacelle acoustic liners and auxiliary power unit (APU) treatments, transmission loss measurement is critical. The ACUPRO TL (Transmission Loss) tube configuration uses a four-microphone transfer matrix method per ASTM E2611, enabling engineers to characterize the sound insulation properties of liner materials, perforated face sheets, honeycomb core structures, and multi-layer composite treatments.

Fluid Level Sensing for Defense and Military Vehicles

Military vehicles, generators, and support equipment operate in extreme environments where component reliability is essential. ISG Devices' solid-state fluid level sensors are designed specifically for harsh operating conditions, with features that make them well-suited for defense applications.

Defense applications for ISG fluid sensors include fuel and coolant level monitoring in tactical vehicles, hydraulic fluid detection in weapons systems and aircraft ground support equipment, generator coolant and fuel level monitoring for field-deployed power systems, and engine oil level sensing in military transport vehicles.

Weather and Environmental Monitoring

The HydroLynx line of weather monitoring stations and hydrological sensors supports defense and government applications that require reliable, remote environmental data collection. Applications include airfield weather observation stations, flood warning and hydrological monitoring for military installations, environmental monitoring at test ranges and training facilities, and data collection for meteorological modeling and forecasting.

Quality and Compliance

ISG Devices' acoustic measurement systems conform to internationally recognized standards critical for aerospace certification and defense procurement, including ISO 10534-2, ASTM E1050, and ASTM E2611 for impedance tube measurements. Our Nashville, TN manufacturing facility maintains rigorous quality processes across all product lines.