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Normas ASTM – AENOR
ASTM E1454-02(2008)

ASTM E1454-02(2008)

Standard Guide for Data Fields for Computerized Transfer of Digital Ultrasonic Testing Data (Withdrawn 2013)

Fecha:
2013-06-20 /Withdrawn
No replacement
Significance and Use:

The primary use of this guide is to provide a standardized approach for the data file to be used for the transfer of digital ultrasonic data from one user to another where the two users are working with dissimilar ultrasonic systems. This guide describes the contents, both required and optional, for an intermediate data file that can be created from the native format of the ultrasonic system on which the data was collected and that can be converted into the native format of the receiving ultrasonic or data analysis system. The development of translator software to accomplish these data format conversions is being addressed under a separate effort; this will include specific items needed for the data transfer, for example, language used, memory requirements and intermediate specification, including detailed data formats and structures. Ths guide will also be useful in the archival storage and retrieval of ultrasonic data as either a data format specifier or as a guide to the data elements that should be included in the archival file.

Although the recommended field listing includes more than 120 items, only about one third of those are regarded as essential and marked with Footnote C in Table 1. Fields so marked must be addressed in the data base. The other recommended fields provide additional information that a user will find helpful in understanding the ultrasonic examination result. These header field items will, in most cases, make up only a very small part of an ultrasonic examination file. The actual stream of ultrasonic data that make up the image will take up the largest part of the data base. Since an ultrasonic image file will normally be large, the concept of data compression will be considered in many cases. Compressed data should be noted, along with a description of the compression method, as indicated in Field No. 122.

This guide describes the structure of a data file for all of the ultrasonic information collected in a single scan. Some systems record multiple inspection results during a single scan. For example, through transmission attenuation data as well as pulse echo thickness data may be recorded at the same time. These data may be stored in separate image planes; see Field No. 102. In other systems, complete digitized waveforms may be recorded at each inspection point. It is recognized that the complete examination record may contain several files, for example, for the same examination method in different object areas, with or without image processing, for different examination methods (through-transmission, pulse-echo, radiologic, infrared, etc.) collected during the same or during different scan sessions, and for variations within a single method (frequency change, etc.). Information about the existence of other images/examination records for the examined object should be noted in the appropriate fields. A single image plane may be one created by overlaying or processing results for multiple examination approaches, for example data fusion. For such images, the notes sections must clearly state how the image for this file was created.

TABLE 1 Field Listing

Field NumberAField Name and DescriptionData Type/UnitsB
Header Information:
1CIntermediate file nameAlphanumeric stringD
2CFormat revision codeAlphanumeric string
3CFormat revision dateyyyy/mm/ddD
4CSource file nameAlphanumeric string
5Examination file description notesAlphanumeric string
6CExamining company and locationAlphanumeric stringD
7CExamination dateyyyy/mm/dd
8CExamination timehh:mm:ss
9CType of examinationAlphanumeric stringD
10COther examinations performedAlphanumeric stringD
11Operator NameAlphanumeric string
12COperator identification codeAlphanumeric string
13CASTM, ISO, or other applicable standard inspection specificationAlphanumeric string
14Date of applicable standardyyyy/mm/dd
15CAcceptance criteriaAlphanumeric string
16CSystem of unitsAlphanumeric stringD
17NotesAlphanumeric string
Examination System Description:
18Examination system manufacturer(s)Alphanumeric stringD
19CExamination system modelAlphanumeric string
20Examination system serial numberAlphanumeric string
Pulser Description:
21Pulser electronics manufacturerAlphanumeric string
22Pulser electronics model numberAlphanumeric string
23Pulser typeAlphanumeric stringD
24Pulse repetition frequencyReal number, kiloHertz
25Pulse heightAlphanumeric stringD
26Pulse widthReal number, nsec
27Last calibration dateyyyy/mm/dd
28Notes on pulser sectionAlphanumeric string
Receiver Description:
29Receiver electronics manufacturerAlphanumeric string
30Receiver electronics modelAlphanumeric string
31Receiver electronics response center frequencyReal number, MHzD
32Receiver bandwidthReal number, MHzD
33Fixed receiver gainReal number, dB
34User selected receiver gainReal number, dB
35Last calibration dateyyyy/mm/dd
Notes on receiver sectionAlphanumeric string
Gate Description:
37Number of gatesInteger
38Gate typeAlphanumeric stringD
39Gate synchronizationAlphanumeric string
40Gate start delayAlphanumeric string
41Gate widthAlphanumeric string
42Gate threshold levelAlphanumeric string
43Notes on gate sectionAlphanumeric string
Search Unit Description:
44Transmit search unit manufacturerAlphanumeric string
45Transmit search unit modelAlphanumeric string
46Transmit search unit serial numberAlphanumeric string
47Transmit search unit element diameterReal number
48Measured beam diameter of the Transmit search unit at the examination surfaceReal number
49Location of measurement of beam diameter of the transmit search unitAlphanumeric stringD
50Transmit search unit focal lengthReal numberD
51Transmit search unit nominal frequencyReal number, MHz
52Transmit search unit response center frequencyReal number, MHz
53Transmit search unit response bandwidthReal number, MHz
54Transmit search unit cable typeAlphanumeric string
55Transmit search unit cable lengthReal number
56Number of values for Transmit search unit digitized waveformIntegerD
57Transmit search unit waveform valuesReal number
58Notes on Transmit search unit waveformAlphanumeric string
59Transmit search unit coupling technique and mediumAlphanumeric string
60Receive search unit manufacturerAlphanumeric string
61Receive search unit model numberAlphanumeric string
62Receive search unit serial numberAlphanumeric string
63Receive search unit element diameterReal number
64Measured beam diameter of the receive search unit at the examination surfaceReal number
65Location of measurement of beam diameter of the receive search unitAlphanumeric stringD
66Receive search unit focal lengthReal numberD
67Receive search unit nominal frequencyReal number, MHz
68Receive search unit response center frequencyReal number, MHz
69Receive search unit response bandwidthReal number, MHz
70Receive search unit cable typeAlphanumeric string
71Receive search unit cable lengthReal number
72Number of values for receive search unit digitized waveformIntegerD
73Receive search unit waveform valuesReal number
74Notes on Receive search unit waveformAlphanumeric string
75Receive search unit coupling technique and mediumAlphanumeric string
Examined Sample Description:
76CExamined sample identificationAlphanumeric string
77CExamined sample nameAlphanumeric string
78Examined sample descriptionAlphanumeric string
79CExamined sample materialAlphanumeric string
80Examined sample notes (history, use, etc.)Alphanumeric stringD
81CNumber of scan segments for this partInteger
82Reference sample identificationAlphanumeric string
83Reference sample descriptionAlphanumeric string
84Reference sample file name/locationAlphanumeric string
85Reference sample notes (use, etc.)Alphanumeric stringD
Coordinate System and Scan Description Machine Coordinate System:
86Machine scan axisAlphanumeric stringD
87Machine index axisAlphanumeric string
88Machine third axisAlphanumeric string
89Reference for machine coordinate systemAlphanumeric string
Part Coordinate System:
90First part axisAlphanumeric stringD
91Second part axisAlphanumeric string
92Third part axisAlphanumeric string
93Reference for part coordinate systemAlphanumeric string
Object Target Points:
94CNumber of target pointsInteger
95CDescription of target pointAlphanumeric string
96CCoordinate of target point in first part axisReal number
97CCoordinate of target point in second part axisReal number
98Coordinate of target point in third part axisReal number
Data Plane:
99Description of the plane onto which data will be projectedAlphanumeric string
100Coordinate system notesAlphanumeric string
Examination Parameters:
101CCoordinate location numberInteger
102CNumber of data values per coordinate locationIntegerD
103CMinimum value of test data range or resolutionIntegerD
104CMaximum value of test data range or resolutionIntegerD
105CEngineering units for minimum legal data valueAlphanumeric stringD
106CEngineering units for maximum legal data valueAlphanumeric stringD
107CNumber of bits to which the original data was digitizedInteger
108CType of data scaleAlphanumeric stringD
109CSize of data stepReal numberD
110CFormat of data recordingAlphanumeric stringD
111CNumber of colors or gray levels usedInteger
112CDistribution of colors or gray levelsAlphanumeric string
Examination Results:
113CScan segment numberIntegerD
114CScan segment descriptionAlphanumeric string
115Scan segment location on partAlphanumeric string
116Scan segment orientationAlphanumeric string
117CScan pattern descriptionAlphanumeric string
118AnnotationAlphanumeric stringD
119CDistance between data sample pointsReal number
120CInterval between data locations in index directionReal number
121Notes on data intervalsAlphanumeric string
122Notes on data format including notes on any compression techniques usedAlphanumeric string
123CTotal number of data pointsIntegerD
124CActual stream of ultrasonic dataReal numbersD

A Field numbers are for reference only. They do not imply a necessity to include all those fields in any specific database nor do they imply a requirement that fields be used in this particular order.

B Units listed first are SI; secondary units are inch-pound (English); see Field No. 16.

C Denotes essential field for computerization of test results.

D See Section 5 for further explanation.

Scope:

1.1 This guide provides a listing and description of the fields that are recommended for inclusion in a digital ultrasonic examination data base to facilitate the transfer of such data. This guide is prepared for use particularly with digital image data obtained from ultrasonic scanning systems. The field listing includes those fields regarded as necessary for inclusion in the data base (as indicated by Footnote C in Table 1); these fields, so marked, are regarded as the minimum information necessary for a transfer recipient to understand the data. In addition, other optional fields are listed as a remainder of the types of information that may be useful for additional understanding of the data, or applicable to a limited number of applications.

1.2 It is recognized that organizations may have in place an internal format for the storage and retrieval of ultrasonic examination data. This guide should not impede the use of such formats since it is probable that the necessary fields are already included in such internal data bases, or that the few additions can be made. The numerical listing indicated in this guide is only for convenience; the specific numbers carry no inherent significance and are not a part of the data file.

1.3 The types of ultrasonic examination systems that appear useful in relation to this guide include those described in Practices E 114, E 214 and E 1001. Many of the terms used are defined in Terminology E 1013 and E 1316. The search unit parameters used in this guide follow from those used in Guide E 1065.

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.

Keywords:
database; data retrieval; data storage; guide; nondestructive testing; ultrasonic examination; ultrasonic image; Archival storage/retrieval; Computerized systems; Data analysis--computerized; Digital electronic data; Electronic data; Information storage and retrieval; Nondestructive evaluation (NDE); Storage; Ultrasonic testing
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