Ultrasonic Device for the Excitation and Reception of Sheer Waves,
Abstract
The invention pertains to an ultrasonic device for the excitation and reception of sheer waves, incorporating a transducer (for example, a Y-section piezo electric crystal) and a damping rod acoustically coupled to it. The distinguish-feature of the device is the fact that, for the purpose of extending the working frequency band and determining the rigidity characteristics of materials with a high attenuation coefficient, the lateral surface of its rod is threaded, while the free extremity, with a platformed end face, is tapered on two sides at an angle of not less than 45 degrees to the diametrical plane parallel to the sheer oscillation polarization. Moreover, this same damping rod is designed so as to have a dimensional ratio of 1.6--2.2 longitudinal oscillation wavelengths to its diameter.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 24, 1972
- Accession Number
- AD0753505
Entities
People
- I. A. Zudov
Organizations
- National Air and Space Intelligence Center