Method of Ultrasonic Inspection of Manufactured Products Having a Coarse-Grained Structure
Abstract
Methods are known of ultrasonic inspection of products having a coarse-grained structure by means of an echo-pulse flaw detector; these methods include radiation of ultrasonic pulses into the product, the reception of echo- pulses and the separation in the background of structural interference of pulse signals reflected from defects. The proposed method is different from those which are known in that the radiator of the flaw detector is excited by means of a signal of complex form, causing mutually independent changes of noises and signals reflected from the defects; it keeps the average intensity of noises constant and separates the alternating component of the received signals, according to the parameters of which the quality of the product being inspected is judged.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 17, 1972
- Accession Number
- AD0753492
Entities
People
- I. N. Yermolov
- V. T. Vlasov
Organizations
- National Air and Space Intelligence Center