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Standard Guide for Evaluating Characteristics of Ultrasonic Search Units
STANDARD published on 10.6.1999
Designation standards: ASTM E1065-99
Note: WITHDRAWN
Publication date standards: 10.6.1999
SKU: NS-40316
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
coustic response, ultrasonic search units-evaluating characteristics, guide, , Bandwidth, ultrasonic search units-evaluating characteristics, guide, , Frequency measurements, ultrasonic search units-evaluating characteristics, guide, , High frequency broadband immersion search units, ultrasonic search units-evaluating characteristics, guide, , Immersion-ultrasonic, ultrasonic search units-evaluating characteristics, guide, , Impedance
1. Scope | ||||
1.1 This guide describes measurement procedures for evaluating certain characteristics of ultrasonic search units (also known as "transducers") that are used with ultrasonic examination instrumentation. This guide 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 The procedures in Annexes A1 to A6 are generally applicable to ultrasonic search units operating within the 0.4 to 10 MHz range. Annex A7 is applicable to higher frequency immersion search unit evaluation. Annexes under development will be added to the guide when available and will apply to measurement of the sound field patterns from angle-beam and contact straight-beam search units, alternative means for making measurements of characteristics, and the like. 1.5 The values stated in inch-pound units are to be regarded as standard. 1.6 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. |
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2. Referenced Documents | ||||
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