1、Designation: E 1454 02Standard Guide forData Fields for Computerized Transfer of Digital UltrasonicExamination Data1This standard is issued under the fixed designation E 1454; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide provides a listing and description of the fieldsthat are recommended for inclusion in a digital ultra
3、sonicexamination data base to facilitate the transfer of such data.This guide is prepared for use particularly with digital imagedata obtained from ultrasonic scanning systems. The fieldlisting includes those fields regarded as necessary for inclusionin the data base (as indicated by Footnote C in T
4、able 1); thesefields, so marked, are regarded as the minimum informationnecessary for a transfer recipient to understand the data. Inaddition, other optional fields are listed as a remainder of thetypes of information that may be useful for additional under-standing of the data, or applicable to a l
5、imited number ofapplications.1.2 It is recognized that organizations may have in place aninternal format for the storage and retrieval of ultrasonicexamination data. This guide should not impede the use of suchformats since it is probable that the necessary fields are alreadyincluded in such interna
6、l data bases, or that the few additionscan be made. The numerical Field Number listing indicated inthis guide is only for convenience; the specific numbers carryno inherent significance and are not a part of the data file.1.3 The types of ultrasonic examination systems that appearuseful in relation
7、to this guide include those described inPractices E 114, E 214 and E 1001. Many of the terms used aredefined in Terminology E 1316. The search unit parametersused in this guide follow from those used in Guide E 1065.1.4 This standard does not purport to address all of thesafety concerns, if any, ass
8、ociated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:E 114 Practice for Ultrasonic Pulse-Echo Straight-BeamExa
9、mination by the Contact Method2E 214 Practice for Immersed Ultrasonic Examination by theReflection Method Using Pulsed Longitudinal Waves2E 1001 Practice for Detection and Evaluation of Disconti-nuities by the Immersed Pulse-Echo Ultrasonic MethodUsing Longitudinal Waves2E 1065 Guide for Evaluating
10、Characteristics of UltrasonicSearch Units2E 1316 Terminology for Nondestructive Examinations23. Significance and Use3.1 The primary use of this guide is to provide a standard-ized approach for the data file to be used for the transfer ofdigital ultrasonic data from one user to another where the twou
11、sers are working with dissimilar ultrasonic systems. Thisguide describes the contents, both required and optional, for anintermediate data file that can be created from the native formatof the ultrasonic system on which the data was collected andthat can be converted into the native format of the re
12、ceivingultrasonic or data analysis system. The development of trans-lator software to accomplish these data format conversions isbeing addressed under a separate effort; this will includespecific items needed for the data transfer, for example,language used, memory requirements and intermediate spec
13、i-fication, including detailed data formats and structures. Thisguide will also be useful in the archival storage and retrieval ofultrasonic data as either a data format specifier or as a guide tothe data elements that should be included in the archival file.3.2 Although the recommended field listin
14、g includes morethan 120 items, only about one third of those are regarded asessential and marked with Footnote C in Table 1. Fields somarked must be addressed in the data base. The other recom-mended fields provide additional information that a user willfind helpful in understanding the ultrasonic e
15、xamination result.These header field items will, in most cases, make up only avery small part of an ultrasonic examination file. The actualstream of ultrasonic data that make up the image will take upthe largest part of the data base. Since an ultrasonic image filewill normally be large, the concept
16、 of data compression will beconsidered in many cases. Compressed data should be noted,1This guide is under the jurisdiction of ASTM Committee E07 on Nondestruc-tive Testing and is the direct responsibility of Subcommittee E07.11 on DigitalImaging and Communication in Nondestructive Evaluation (DICON
17、DE).Current edition approved July 10, 2002. Published September 2002. Originallypublished as E 1454 92. Last previous edition E 1454 92(97).2Annual Book of ASTM Standards, Vol 03.03.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.alo
18、ng with a description of the compression method, asindicated in Field No. 122.3.3 This guide describes the structure of a data file for all ofthe ultrasonic information collected in a single scan. Somesystems record multiple examination results during a singlescan. For example, through transmission
19、attenuation data aswell as pulse echo thickness data may be recorded at the sametime. These data may be stored in separate image planes; seeField No. 102. In other systems, complete digitized waveformsmay be recorded at each examination point. It is recognizedthat the complete examination record may
20、 contain several files,for example, for the same examination method in differentobject areas, with or without image processing, for differentexamination methods (through-transmission, pulse-echo, ra-diologic, infrared, etc.) collected during the same or duringdifferent scan sessions, and for variati
21、ons within a singlemethod (frequency change, etc.). Information about the exist-ence of other images/examination records for the examinedobject should be noted in the appropriate fields. A single imageplane may be one created by overlaying or processing resultsfor multiple examination approaches, fo
22、r example data fusion.For such images, the notes sections must clearly state how theimage for this file was created.TABLE 1 Field ListingField NumberAField Name and Description Data Type/UnitsBHeader Information:1CIntermediate file name Alphanumeric stringD2CFormat revision code Alphanumeric string3
23、CFormat revision date yyyy/mm/ddD4CSource file name Alphanumeric string5 Examination file description notes Alphanumeric string6CExamining company and location Alphanumeric stringD7CExamination date yyyy/mm/dd8CExamination time hh:mm:ss9CType of examination Alphanumeric stringD10COther examinations
24、performed Alphanumeric stringD11 Operator Name Alphanumeric string12COperator identification code Alphanumeric string13CASTM, ISO, or other applicable standard specification Alphanumeric string14 Date of applicable standard yyyy/mm/dd15CAcceptance criteria Alphanumeric string16CSystem of units Alpha
25、numeric stringD17 Notes Alphanumeric stringExamination System Description:18 Examination system manufacturer(s) Alphanumeric stringD19CExamination system model Alphanumeric string20 Examination system serial number Alphanumeric stringPulser Description:21 Pulser electronics manufacturer Alphanumeric
26、 string22 Pulser electronics model number Alphanumeric string23 Pulser type Alphanumeric stringD24 Pulse repetition frequency Real number, kiloHertz25 Pulse height Alphanumeric stringD26 Pulse width Real number, nsec27 Last calibration date yyyy/mm/dd28 Notes on pulser section Alphanumeric stringRec
27、eiver Description:29 Receiver electronics manufacturer Alphanumeric string30 Receiver electronics model Alphanumeric string31 Receiver electronics response center frequency Real number, MHzD32 Receiver bandwidth Real number, MHzD33 Fixed receiver gain Real number, dB34 User selected receiver gain Re
28、al number, dB35 Last calibration date yyyy/mm/ddNotes on receiver section Alphanumeric stringGate Description:37 Number of gates Integer38 Gate type Alphanumeric stringD39 Gate synchronization Alphanumeric string40 Gate start delay Alphanumeric string41 Gate width Alphanumeric string42 Gate threshol
29、d level Alphanumeric string43 Notes on gate section Alphanumeric stringSearch Unit Description:44 Transmit search unit manufacturer Alphanumeric string45 Transmit search unit model Alphanumeric string46 Transmit search unit serial number Alphanumeric string47 Transmit search unit element diameter Re
30、al number48 Measured beam diameter of the Transmit search unit at the examination surface Real number49 Location of measurement of beam diameter of the transmit search unit Alphanumeric stringD50 Transmit search unit focal length Real numberDE1454022Field NumberAField Name and Description Data Type/
31、UnitsB51 Transmit search unit nominal frequency Real number, MHz52 Transmit search unit response center frequency Real number, MHz53 Transmit search unit response bandwidth Real number, MHz54 Transmit search unit cable type Alphanumeric string55 Transmit search unit cable length Real number56 Number
32、 of values for Transmit search unit digitized waveform IntegerD57 Transmit search unit waveform values Real number58 Notes on Transmit search unit waveform Alphanumeric string59 Transmit search unit coupling technique and medium Alphanumeric string60 Receive search unit manufacturer Alphanumeric str
33、ing61 Receive search unit model number Alphanumeric string62 Receive search unit serial number Alphanumeric string63 Receive search unit element diameter Real number64 Measured beam diameter of the “receive” search unit at the examination surface Real number65 Location of measurement of beam diamete
34、r of the receive search unit Alphanumeric stringD66 Receive search unit focal length Real numberD67 Receive search unit nominal frequency Real number, MHz68 Receive search unit response center frequency Real number, MHz69 Receive search unit response bandwidth Real number, MHz70 Receive search unit
35、cable type Alphanumeric string71 Receive search unit cable length Real number72 Number of values for “receive” search unit digitized waveform IntegerD73 Receive search unit waveform values Real number74 Notes on Receive search unit waveform Alphanumeric string75 Receive search unit coupling techniqu
36、e and medium Alphanumeric stringExamined Sample Description:76CExamined sample identification Alphanumeric string77CExamined sample name Alphanumeric string78 Examined sample description Alphanumeric string79CExamined sample material Alphanumeric string80 Examined sample notes (history, use, etc.) A
37、lphanumeric stringD81CNumber of scan segments for this part Integer82 Reference sample identification Alphanumeric string83 Reference sample description Alphanumeric string84 Reference sample file name/location Alphanumeric string85 Reference sample notes (use, etc.) Alphanumeric stringDCoordinate S
38、ystem and Scan Description Machine Coordinate System:86 Machine scan axis Alphanumeric stringD87 Machine index axis Alphanumeric string88 Machine third axis Alphanumeric string89 Reference for machine coordinate system Alphanumeric stringPart Coordinate System:90 First part axis Alphanumeric stringD
39、91 Second part axis Alphanumeric string92 Third part axis Alphanumeric string93 Reference for part coordinate system Alphanumeric stringObject Target Points:94CNumber of target points Integer95CDescription of target point Alphanumeric string96CCoordinate of target point in first part axis Real numbe
40、r97CCoordinate of target point in second part axis Real number98 Coordinate of target point in third part axis Real numberData Plane:99 Description of the plane onto which data will be projected Alphanumeric string100 Coordinate system notes Alphanumeric stringExamination Parameters:101CCoordinate l
41、ocation number Integer102CNumber of data values per coordinate location IntegerD103CMinimum value of examination data range or resolution IntegerD104CMaximum value of examination data range or resolution IntegerD105CEngineering units for minimum legal data value Alphanumeric stringD106CEngineering u
42、nits for maximum legal data value Alphanumeric stringD107CNumber of bits to which the original data was digitized Integer108CType of data scale Alphanumeric stringD109CSize of data step Real numberD110CFormat of data recording Alphanumeric stringD111CNumber of colors or gray levels used Integer112CD
43、istribution of colors or gray levels Alphanumeric stringExamination Results:113CScan segment number IntegerD114CScan segment description Alphanumeric string115 Scan segment location on part Alphanumeric string116 Scan segment orientation Alphanumeric string117CScan pattern description Alphanumeric s
44、tring118 Annotation Alphanumeric stringDE1454023Field NumberAField Name and Description Data Type/UnitsB119CDistance between data sample points Real number120CInterval between data locations in index direction Real number121 Notes on data intervals Alphanumeric string122 Notes on data format includi
45、ng notes on any compression techniques used Alphanumeric string123CTotal number of data points IntegerD124CActual stream of ultrasonic data Real numbersDAField 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 requi
46、rement that fields beused in this particular order.BUnits listed first are SI; secondary units are inch-pound (English); see Field No. 16.CDenotes essential field for computerization of examination results.DSee Section 5 for further explanation.4. Description of the Field Listings4.1 Table 1 is a re
47、commended field format for the comput-erized transfer of ultrasonic examination data. There are threecolumns of information, as indicated in 4.1.1-4.1.3:4.1.1 Field NumberA reference number for ease of use indealing with the individual fields within this guide. Thisnumber has no permanent value and
48、does not become part ofthe data base itself.4.1.2 Field Name and DescriptionThe complete name ofthe field, descriptive of the element of information that wouldbe included in this field of the data base.4.1.3 Data Type/UnitsA listing of the types of informationwhich would be included in the field or
49、the units in which thevalues are expressed, or both.4.2 The information for reporting ultrasonic examinationresults is divided into ten segments, as follows:4.2.1 Header information,4.2.2 Examination system description,4.2.3 Pulser description,4.2.4 Receiver description,4.2.5 Gate description,4.2.6 Search unit description,4.2.7 Examined sample description,4.2.8 Coordinate system and scan description,4.2.9 Examination parameters, and4.2.10 Examination results.4.3 Additional explanations and allowable entries for somefields are given in Section 5.5. Explanation of Fields5.1 Field Nu
