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1.1 This guide describes procedures for electronically measuring the following performance-related characteristics of some sections of ultrasonic instruments:
1.1.1 Power Supply Section:
battery discharge time, and
battery charge time.
1.1.2 Pulser Section:
pulse rise time, pulse length, and
pulse frequency spectrum.
1.1.3 Receiver Section:
noise and sensitivity, and
1.1.4 Time Base Section:
horizontal linearity, and
clock (pulse repetition rate).
1.1.5 Gate/Alarm Section:
delay and width,
analog output, and
back echo gate.
1.2 This guide complements Practice E317, and is not intended for evaluating the performance characteristics of ultrasonic testing instruments on the inspection/production line.
Note 1—No access to internal circuitry is required.
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ^REFERENCE:
D2548 Method of Test for Analysis of Oil Soluble Petroleum Sulfonates by Liquid Chromatography; Replaced by D 3712 (Withdrawn)
E317 Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments
E1316 Terminology for Nondestructive Examinations
ISO 10012 Measurement Management Systems
Z540-1 General Requirements for Calibration Laboratories and Measurement and Test Equipment
IEEE Std. 100, IEEE Standard Dictionary of Electrical and Electronics Terms
|Engelse titel||Standard Guide for Measuring Some Electronic Characteristics of Ultrasonic Testing Instruments|