7 Nondestructive Testing
Basic Methods and General Considerations
7.1 INTRODUCTION
Ultrasonic methods for nondestructive testing (NDT) and material characterization are perhaps the most versatile of the testing techniques available to industry. Ultrasonic NDT, therefore, provides one of the largest non-medical areas for applications of low-intensity ultrasonic energy.
As discussed in Chapter 1, there have been major advances in NDT in the past 30 years. Traditional manual testing, using skilled operators, who perform standardized inspections, has been supplemented by an increasing range of automated and semi-automated inspections. It was recognized in the mid-1970s that for NDT to meet the needs of high-technology industries, such ...
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