Location

Williamsburg, VA

Start Date

1-1-1986 12:00 AM

Description

In general, all ultrasonic systems require calibration prior to their use for screening a product; furthermore, their calibration must be verified frequently. Specially designed calibration standards which contain machined notches simulating actual material defects are used for the calibration of the equipment. Some tolerances must be allowed for machining the simulated defects. When all the tolerances in the ultrasonic system, instrument, sensor, and standards are accumulated, the resulting signal responses are usually less than desired. To maintain the required uniform sensitivity, compensation must be made for these undesirable losses in signal amplitude.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

5A

Chapter

Chapter 4: Systems and Reliability

Section

Systems

Pages

871-875

DOI

10.1007/978-1-4615-7763-8_93

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Optimizing Ultrasonic Signal Responses of Production Nondestructive Testing System

Williamsburg, VA

In general, all ultrasonic systems require calibration prior to their use for screening a product; furthermore, their calibration must be verified frequently. Specially designed calibration standards which contain machined notches simulating actual material defects are used for the calibration of the equipment. Some tolerances must be allowed for machining the simulated defects. When all the tolerances in the ultrasonic system, instrument, sensor, and standards are accumulated, the resulting signal responses are usually less than desired. To maintain the required uniform sensitivity, compensation must be made for these undesirable losses in signal amplitude.