IMPROVEMENT OF EDDY CURRENT INSPECTION.
Abstract
Inspection time can be reduced 75% with a quadruple coil transducer which was developed to work with existing eddy current equipment. Its lower sensitivity can be compensated by increasing the available gain of the detection system. The principal disadvantage of the new transducer is the greater difficulty in adjusting the equipment as compared with the single coil transducer. The O.D. of tubes can now be inspected during finish machining because of an eddy current system which was developed to automatically compensate for changes in surface scanning speed caused by different diameters at the muzzle and breech ends. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1969
- Accession Number
- AD0697784
Entities
People
- Herbert Frankel