Method for Measuring the Velocity and Attenuation Factor of Ultrasonic Vibrations in Media,
Abstract
Improved accuracy of measurement in media with a high damping decrement is ensured by approximating the leading front of the signal with reference voltage frequency and amplitude variation. The circuit comprises a unit for excitation and detection of ultrasonic vibrations, frequency divided with a pulse transformer, sinusoidal oscillator, two beam oscillograph and frequency meter. The oscillator of the unit provides short pulses for triggering step and continuously variable delay lines of beam scan. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 19, 1973
- Accession Number
- AD0756089
Entities
People
- L. P. Bobrikov
- M. Z. Medvedev
Organizations
- National Air and Space Intelligence Center