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Weight Compensation
Weight Compensation

News & Events

June 10, 2008
Weight Compensation Aids Flexibility of NDT-RAM

THE MODAL SHOP, INC. announces a significant new software option that allows for automated testing criteria modification based on variances in weight for The Modal Shop’s versatile resonant acoustic method (NDT-RAMTM ) systems. The Weight Compensation option (NDT-ESP-WC) automatically modifies NDT-RAM setups based on a part’s weight communicated from an attached scale. Weight Compensation saves users time by automatically modifying templates based on a part’s weight and allows the software to identify smaller resonant frequency shifts in a part since variances in weight can be compensated for part to part.

Some variation in weight from part to part is inevitable in regular manufacturing processes. Since mass effects global resonant frequencies and NDT-RAM tests the whole part, weight compensation can be used to adjust a part template in real time leaving NDT-RAM to run uninterrupted in fully automated production lines while maintaining 100% inspection with more precise criteria to test against.  It is ideal for customers who test parts that vary in weight across lots or molds or even part to part and require modifying NDT-RAM setups automatically based on a production trigger.

All of the NDT-RAM systems are ideal for 100% inspection requirements for manufacturers or users of powder metal parts, castings (including ductile iron), forgings or stampings 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.

With no part preparation required, Resonant Acoustic Method NDT successfully identifies resonant frequency shifts resulting from internal or external flaws due to cracks, voids, material density, dimensions, porosity and nodularity as well as missed manufacturing processes.

For specification sheets, application data, competitive product upgrades, pricing or to schedule a free parts test, rental or demonstration, please contact THE MODAL SHOP, INC., 3149 E. Kemper Road Cincinnati, OH 45241-1516, Internet:, (800) 860-4867, Fax (513) 458-2172 or e-mail:

NDT-RAM is a trademark of The Modal Shop, Inc.