SwRI will be exhibiting at the ASNT Annual Conference, booth no. 334.
Please join us for the following presentation:
Thursday, Oct. 24
11:00 a.m. – 11:30 a.m., Room 213
“Magnetostrictive Transducers for Guided Wave Testing of Industrial Components,” Sergey Vinogradov
Higher power transduction has been accomplished by developing reversed Wiedemann effect magnetostrictive transducers (MsTs) utilizing ferromagnetic ribbons cores. These transducers were first presented at ECNDT 2010 and were recognized with a certificate of innovation. In this presentation, a range of MsT probes with great variety of form factors will be presented, from tiny collars for tubes with diameters less than 0.5” to large probes with a segmented array of sensors suitable for inspection of both pipes and plates. Frequency-amplitude characteristics of these probes as a function of magnetization and heat treatment process utilized for ferromagnetic ribbons will be discussed. This discussion will help the audience understand the logic behind specific MsT designs.
An additional topic of discussion will be discussion of a variety of MsT probes with automated data collection function, such as the MsT 360 omnidirectional probe, Linear Scan MsT probe, and MsT 8x8 probe with phased array functionality. The probes come with data acquisition and analysis software allowing mapping of anomalies in rather large structures such as storage tank walls and bottoms, using Full Matrix Capture (FMC) and Total Focusing Method (TFM) reconstruction. Examples of defect imaging in actual storage tanks will be discussed along with projected future directions of technology development.
SwRI is an independent, nonprofit, applied research and development organization headquartered in San Antonio, Texas. SwRI has more than 3,000 employees who work in scientific and engineering applications from deep sea to deep space and everything in between. The SwRI Sensor System and Nondestructive Evaluation Section performs specialized R&D and system development. For example, SwRI-developed magnetostrictive sensor guided wave technology is used for a number of applications, including the inspection and monitoring of piping with temperatures up to 500° C; automated omnidirectional scanning of tank walls, tank bottoms, and pipe supports; and guided wave testing of buried anchor rods, steel ropes, heat exchanger tubes, and aircraft structures. The Institute also developed a remote field eddy current system for non-piggable small-diameter pipes as well as ultrasonic systems using synthetic aperture and total focusing algorithms that can handle long-distance inspection of tank floors and walls. Come talk to us about your NDE challenges.
For more information, please contact Sergey Vinogradov.