SDI is a leading manufacturer of automated ultrasonic inspection systems. It was formed in 1994 by a group of NDT engineers who had been manufacturing automated UT systems for over thirty years, formerly as Staveley Aerospace Systems Qualcorp, and Automation Industries. SDI operates from a 30,000 sq. ft. business park, Camarillo, California. In addition to sales, design and administration offices, the facility houses a large-scale manufacturing facility and machine shop and a fully equipped applications laboratory. All aspects of product design and manufacturing are carried out in house. In addition to the UT systems, SDI manufactures a range of specialized UT instrumentation and motion control products.