Причина отмены

This guide provided a listing and description of the fields that were recommended for inclusion in a digital ultrasonic examination data base to facilitate the transfer of such data. This guide was prepared for use particularly with digital image data obtained from ultrasonic scanning systems. The field listing included those fields regarded as necessary for inclusion in the data base; these fields, so marked, were regarded as the minimum information necessary for a transfer recipient to understand the data. In addition, other optional fields were listed as a remainder of the types of information that may have been useful for additional understanding of the data, or applicable to a limited number of applications.

Formerly under the jurisdiction of Committee E07 on Nondestructive Testing, this guide was withdrawn in June 2013. This standard is being withdrawn without replacement due to its limited use by industry.

Значение и использование

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 Number^AField Name and DescriptionData Type/Units^B Header Information: 1^CIntermediate file nameAlphanumeric string^D 2^CFormat revision codeAlphanumeric string 3^CFormat revision dateyyyy/mm/dd^D 4^CSource file nameAlphanumeric string 5Examination file description notesAlphanumeric string 6^CExamining company and locationAlphanumeric string^D 7^CExamination dateyyyy/mm/dd 8^CExamination timehh:mm:ss 9^CType of examinationAlphanumeric string^D 10^COther examinations performedAlphanumeric string^D 11Operator NameAlphanumeric string 12^COperator identification codeAlphanumeric string 13^CASTM, ISO, or other applicable standard inspection specificationAlphanumeric string 14Date of applicable standardyyyy/mm/dd 15^CAcceptance criteriaAlphanumeric string 16^CSystem of unitsAlphanumeric string^D 17NotesAlphanumeric string Examination System Description: 18Examination system manufacturer(s)Alphanumeric string^D 19^CExamination system modelAlphanumeric string 20Examination system serial numberAlphanumeric string Pulser Description: 21Pulser electronics manufacturerAlphanumeric string 22Pulser electronics model numberAlphanumeric string 23Pulser typeAlphanumeric string^D 24Pulse repetition frequencyReal number, kiloHertz 25Pulse heightAlphanumeric string^D 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, MHz^D 32Receiver bandwidthReal number, MHz^D 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 string^D 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 string^D 50Transmit search unit focal lengthReal number^D 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 waveformInteger^D 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 string^D 66Receive search unit focal lengthReal number^D 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 waveformInteger^D 73Receive search unit waveform valuesReal number 74Notes on Receive search unit waveformAlphanumeric string 75Receive search unit coupling technique and mediumAlphanumeric string Examined Sample Description: 76^CExamined sample identificationAlphanumeric string 77^CExamined sample nameAlphanumeric string 78Examined sample descriptionAlphanumeric string 79^CExamined sample materialAlphanumeric string 80Examined sample notes (history, use, etc.)Alphanumeric string^D 81^CNumber 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 string^D Coordinate System and Scan Description Machine Coordinate System: 86Machine scan axisAlphanumeric string^D 87Machine index axisAlphanumeric string 88Machine third axisAlphanumeric string 89Reference for machine coordinate systemAlphanumeric string Part Coordinate System: 90First part axisAlphanumeric string^D 91Second part axisAlphanumeric string 92Third part axisAlphanumeric string 93Reference for part coordinate systemAlphanumeric string Object Target Points: 94^CNumber of target pointsInteger 95^CDescription of target pointAlphanumeric string 96^CCoordinate of target point in first part axisReal number 97^CCoordinate 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: 101^CCoordinate location numberInteger 102^CNumber of data values per coordinate locationInteger^D 103^CMinimum value of test data range or resolutionInteger^D 104^CMaximum value of test data range or resolutionInteger^D 105^CEngineering units for minimum legal data valueAlphanumeric string^D 106^CEngineering units for maximum legal data valueAlphanumeric string^D 107^CNumber of bits to which the original data was digitizedInteger 108^CType of data scaleAlphanumeric string^D 109^CSize of data stepReal number^D 110^CFormat of data recordingAlphanumeric string^D 111^CNumber of colors or gray levels usedInteger 112^CDistribution of colors or gray levelsAlphanumeric string Examination Results: 113^CScan segment numberInteger^D 114^CScan segment descriptionAlphanumeric string 115Scan segment location on partAlphanumeric string 116Scan segment orientationAlphanumeric string 117^CScan pattern descriptionAlphanumeric string 118AnnotationAlphanumeric string^D 119^CDistance between data sample pointsReal number 120^CInterval between data locations in index directionReal number 121Notes on data intervalsAlphanumeric string 122Notes on data format including notes on any compression techniques usedAlphanumeric string 123^CTotal number of data pointsInteger^D 124^CActual stream of ultrasonic dataReal numbers^D

^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.

Область применения

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.