Manual Non-Destructive Test Resonant Inspection System

For Onsite Evaluation and Spot Checks | RAM-TEST-MANUAL

Resonant Acoustic Method is designed to help deliver fully inspected parts, economically and on time. Every component has a unique resonant signature or pattern that reflects its composition. NDT-RAM™ detects deviations from the expected signature or pattern. The RAM-TEST-MANUAL system has all the core components necessary for Resonant Inspection, including the smart digital controller, impact hammer, microphone, software, and rugged travel case. The system provides a completely portable solution for quality testing of a wide range of components and is ideal for spot testing, part investigation and troubleshooting.



  • Simple - pass/fail result is returned by the NDT-RAM system
  • Compact - fits easily inside a laptop case
  • Portable - ideal for spot checking in the field, powered by laptop via USB
  • Versatile - ideal for new part set-up, investigation, troubleshooting



  • Powdered Metal
  • Castings
  • Forgings
  • Metal Stampings
  • Ductile/Gray Iron
  • Ceramics
  • Composites
  • Additive Manufacturing
  • Braze/Weld Joints
  • Metal Injection Molding (MIM)

RAM-TEST-MAN systems are ideal for inspection requirements of manufacturers or users of powder metal, metal injection molded (MIM), castings (including ductile iron), forgings, stampings or welding. NDT-RAM provides screening for cracks, chips, holes, out-of-tolerance dimensions, variations in hardness, residual stress, bonding failures and heat-treating processes. Manufacturers that have significant inspection costs (either material or labor costs), produce or use safety-critical parts, have substantial scrap costs due to false rejects or simply want to improve their part quality can benefit from NDT-RAM technology.


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Part Testing RateManual
Part Types TestedMetal, ceramic, high-stiffness composition
Criteria RangesUp to 20 per part setup


Reference DocumentationNDT-RAM Criteria Setup Guide
NDT-RAM Software Manual
RAM-TEST-MANUAL Hardware Manual
Hardware ComponentsSmart Digital Controller
Rugged Equipment Case
Instrumented Impact Hammer with Spare Impact Tips
Acoustic Pickup and Microphone
Miniature Tripod
QualityCalibration Certificates