Accession Number : AD0756089

Title :   Method for Measuring the Velocity and Attenuation Factor of Ultrasonic Vibrations in Media,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Medvedev,M. Z. ; Bobrikov,L. P.

Report Date : 19 JAN 1973

Pagination or Media Count : 10

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)

Descriptors :   (*NONDESTRUCTIVE TESTING, ULTRASONIC RADIATION), TEST EQUIPMENT, PATENTS, USSR

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE