Ultrasonic Measurement Methods

Ultrasonic Measurement Methods describes methods used in ultrasonic measurements and covers topics ranging from radiated fields of ultrasonic transducers to the measurement of ultrasonic velocity and ultrasonic attenuation, along with the physical principles of measurements with electromagnetic-acoustic transducers (EMATs). Optical detection of ultrasound and measurement of the electrical characteristics of piezoelectric devices are also examined.

Comprised of seven chapters, this volume begins with an analysis of the radiated fields of ultrasonic transducers, followed by a discussion on the measurement of ultrasonic velocity and attenuation. The next chapter describes the physical principles of measurement with EMATs and the advantages of such devices based on their couplant-free operation. Optical detection of ultrasound is then considered, together with the problem of measuring the electrical characteristics of piezoelectric resonators and standard methods for obtaining the equivalent electrical parameter values. The final chapter is devoted to ultrasonic pulse scattering in solids and highlights many fascinating examples of wave scattering, some of which are accompanied by theoretical analysis.

This book will be of interest to physicists.

Contenu

Contributors
Preface
Introduction
1 Radiated Fields of Ultrasonic Transducers

1. Introduction
2. Fields of Continuous-Wave (cw) Transducers
3. Transient Field Characteristics
4. Control of Transducer Spatial Field Characteristics
   References
   2 The Measurement of Ultrasonic Velocity
5. Introduction
6. Fundamentals of the Pulse-Echo-Overlap Measurement
7. Versatile Configurations
8. Modern Equipment
9. Diffraction Corrections
10. Absolute Accuracy
11. Summary
    References
    3 The Measurement of Ultrasonic Attenuation
12. Introduction
13. Fundamentals of Measurement
14. Experimental Situations to be Avoided
15. Diffraction Corrections to Transform Raw Data into Absolute Measurements
16. Buffer Rod Method
17. Beyond the Fundamentals
18. Summary
    References
    4 Physical Principles of Measurements with EMAT Transducers
19. Introduction
20. General Formalism for Discussion of Measurement Principles
21. Radiation into Half-Spaces
22. Coupling to Guided Modes
23. Operation in Magnetic Materials
24. Summary and Conclusions
    References
    5 Optical Detection of Ultrasound
25. Introduction
26. Encoding and Decoding Ultrasonic Information on an Optical Beam
27. Detection Sensitivity
28. Summary
    Acknowledgment
    References
    6 Measuring the Electrical Characteristics of Piezoelectric Devices
29. General Remarks
30. Standard Methods for Device Measurement
31. Recommended Scattering Parameter Methods
32. Estimation of Equivalent Circuit Parameters
33. Summary of Resonator Measurement Considerations
    References
    7 Photoelastic Visualization and Theoretical Analyses of Scatterings of Ultrasonic Pulses in Solids
34. Introduction
35. The Dynamic Photoelastic Visualization Technique
36. Reflection of Bulk Waves from the Plane Boundary Surface of a Semi-Infinite Solid Medium
37. Scattering of Bulk Waves by a Two-Dimensional Plane Crack
38. Scattering of Bulk Waves by a Cylindrical Cavity
39. Scattering of Bulk Waves and Raleigh Waves by Free Corners
40. Visualization of Lamb Waves and Study of their Reflection from a Plate-Free Edge
41. Conclusion
    Acknowledgment
    References
    Author Index
    Subject Index
    Contents of Previous Volumes