ASTM E1065/E1065M-14
Standard Guide for Evaluating Characteristics of Ultrasonic Search Units

Standard No.

ASTM E1065/E1065M-14

Release Date

2014

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E1065/E1065M-20

Latest

ASTM E1065/E1065M-20

Scope

5.1 This practice is intended to provide standardized procedures for evaluating ultrasonic search units. It is not intended to define performance and acceptance criteria, but rather to provide data from which such criteria may be established.

5.2 These procedures are intended to evaluate the characteristics of single-element piezoelectric search units.

5.3 Implementation may require more detailed procedural instructions in a format of the using facility.

5.4 The measurement data obtained may be employed by users of this practice to specify, describe, or provide a performance criteria for procurement and quality assurance, or service evaluation of the operating characteristics of ultrasonic search units. All or portions of the practice may be used as determined by the user.

5.5 The measurements are made primarily under pulse-echo conditions. To determine the relative performance of a search unit as either a transmitter or a receiver may require additional tests.

5.6 While these procedures relate to many of the significant parameters, others that may be important in specific applications may not be treated. These might include power handling capability, breakdown voltage, wear properties of contact units, radio-frequency interference, and the like.

5.7 Care must be taken to ensure that comparable measurements are made and that users of the practice follow similar procedures. The conditions specified or selected (if optional) may affect the test results and lead to apparent differences.

5.8 Interpretation of some test results, such as the shape of the frequency response curve, may be subjective. Small irregularities may be significant. Interpretation of the test results is beyond the scope of this practice.

5.9 Certain results obtained using the procedures outlined may differ from measurements made with ultrasonic test instruments. These differences may be attributed to differences in the nature of the experiment or the electrical characteristics of the instrumentation.

5.10 The pulse generator used to obtain the frequency response and time response of the search unit must have a rise time, duration, and spectral content sufficient to excite the search unit over its full bandwidth, otherwise time distortion and erroneous results may result.

1.1 This practice covers measurement procedures for evaluating certain characteristics of ultrasonic search units (also known as “probes”) that are used with ultrasonic testing instrumentation. This practice describes means for obtaining performance data that may be used to define the acoustic and electric responses of ultrasonic search units.

1.2 The procedures are designed to measure search units as individual components (separate from the ultrasonic test instrument) using commercial search unit characterization systems or using laboratory instruments such as signal generators, pulsers, amplifiers, oscilloscopes, and waveform analyzers.

1.3 The procedures are applicable to manufacturing acceptance and incoming inspection of new search units or to periodic performance evaluation of search units throughout their service life.

1.4 Th......

ASTM E1065/E1065M-14 Referenced Document

• ASTM E1316 Standard Terminology for Nondestructive Examinations

ASTM E1065/E1065M-14 history

• 2020 ASTM E1065/E1065M-20 Standard Practice for Evaluating Characteristics of Ultrasonic Search Units
• 2014 ASTM E1065/E1065M-14 Standard Guide for Evaluating Characteristics of Ultrasonic Search Units
• 2008 ASTM E1065-08 Standard Guide for Evaluating Characteristics of Ultrasonic Search Units
• 1999 ASTM E1065-99(2003) Standard Guide for Evaluating Characteristics of Ultrasonic Search Units
• 1999 ASTM E1065-99 Standard Guide for Evaluating Characteristics of Ultrasonic Search Units