ASTM E1856-13

Standard Guide for Evaluating Computerized Data Acquisition Systems Used to Acquire Data from Universal Testing Machines

SIGNIFICANCE AND USE
5.1 This guide is recommended to be used by anyone acquiring data from a universal testing machine using a computerized data acquisition system.
SCOPE
1.1 This guide is intended to assist the user in the evaluation and documentation of computerized data acquisition systems used to acquire data from quasi-static tests, performed on universal testing machines. The report produced will aid in the correct use and calibration of the computerized universal testing machine.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

• Status: Historical
• Publication Date: 14-Nov-2013
• ICS: 19.060 - Mechanical testing
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.15 - Automated Testing

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1856 − 13
Standard Guide for
Evaluating Computerized Data Acquisition Systems Used to
1
Acquire Data from Universal Testing Machines
This standard is issued under the fixed designation E1856; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 3. Terminology
1.1 This guide is intended to assist the user in the evaluation 3.1 The definitions of mechanical testing terms that appear
and documentation of computerized data acquisition systems
in Terminology E6 apply to this guide.
used to acquire data from quasi-static tests, performed on
3.2 Definitions:
universal testing machines. The report produced will aid in the
3.2.1 resolution, n—for a particular measurement device,
correct use and calibration of the computerized universal
the smallest change in the quantity being measured that causes
testing machine.
a perceptible change in the corresponding indication.
1.2 The values stated in SI units are to be regarded as
3.2.1.1 Discussion—Resolution may depend on the value
standard. No other units of measurement are included in this
(magnitude) of the quantity being measured.
standard.
3.2.1.2 Discussion—For paper charts or analog indicators,
theresolutionshouldnotbeassumedtobebetter(smaller)than
1.3 This standard does not purport to address all of the
1
⁄10 of the spacing between graduations. For digital devices, the
safety concerns, if any, associated with its use. It is the
best resolution potentially achievable is the smallest difference
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- between two different readings given by the display.
bility of regulatory limitations prior to use. 3.2.1.3 Discussion—For both analog and digital devices, the
actual resolution can be significantly poorer than described
2. Referenced Documents above, due to factors such as noise, friction, etc.
2
3.3 Definitions of Terms Specific to This Standard:
2.1 ASTM Standards:
E4 Practices for Force Verification of Testing Machines 3.3.1 basic data, n—the digital equivalents of analog
E6 Terminology Relating to Methods of Mechanical Testing counterparts, such as force and displacement measurements,
E8/E8M Test Methods for Tension Testing of Metallic Ma- which under static conditions are traceable to national stan-
terials dards (see Fig. 1).
E74 Practice of Calibration of Force-Measuring Instruments
3.3.2 computerized data acquisition system—a device that
for Verifying the Force Indication of Testing Machines
collects basic data from a universal testing machine during a
E83 Practice for Verification and Classification of Exten-
test and calculates and presents derived data based on the basic
someter Systems
data collected.
E691 Practice for Conducting an Interlaboratory Study to
3.3.3 derived data, n—additional numbers derived from the
Determine the Precision of a Test Method
basic data through computation using software algorithms,
E1012 Practice for Verification of Testing Frame and Speci-
such as a peak force or a modulus value.
men Alignment Under Tensile and Compressive Axial
Force Application
3.3.4 data acquisition rate, n—the rate at which digital
samplesofeachwave-form(thatis,force,strain,displacement,
and so forth) are acquired, expressed in samples/second.
1
This guide is under the jurisdiction of ASTM Committee E28 on Mechanical 3.3.5 transducer-channel bandwidth—the frequency at
Testing and is the direct responsibility of Subcommittee E28.15 on Automated
which the amplitude response of a transducer channel has
Testing.
fallen by 3 dB; that is, the measured signal is in error by about
Current edition approved Nov. 15, 2013. Published January 2014. Originally
30 % and the phase shift is 45° or greater.
approvedin1997.Lastpreviouseditionapprovedin2008asE1856–97(2008).DOI:
10.1520/E1856-13.
3.3.5.1 Discussion—The precise amplitude and phase re-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
sponses vary with the electrical design of the computerized
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
data acquisition system, but the 3 dB bandwidth (expressed in
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. hertz)isasimplesinglemeasureofresponsiveness(seeFig.2).
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E1856 − 13
6.2.1.1 Perform a round rob
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E1856 − 97 (Reapproved 2008) E1856 − 13
Standard Guide for
Evaluating Computerized Data Acquisition Systems Used to
1
Acquire Data from Universal Testing Machines
This standard is issued under the fixed designation E1856; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This guide is intended to assist the user in the evaluation and documentation of computerized data acquisition systems used
to acquire data from quasi-static tests, performed on universal testing machines. The report produced will aid in the correct use
and calibration of the computerized universal testing machine.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E8/E8M Test Methods for Tension Testing of Metallic Materials
E74 Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines
E83 Practice for Verification and Classification of Extensometer Systems
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1012 Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force
Application
3. Terminology
3.1 The definitions of mechanical testing terms that appear in Terminology E6 apply to this guide.
3.2 Definitions:
3.2.1 resolution, n—for a particular measurement device, the smallest change in the quantity being measured that causes a
perceptible change in the corresponding indication.
1
This guide is under the jurisdiction of ASTM Committee E28 on Mechanical Testing and is the direct responsibility of Subcommittee E28.15 on Automated Testing.
Current edition approved Sept. 1, 2008Nov. 15, 2013. Published January 2009.January 2014. Originally approved in 1997. Last previous edition approved in 20022008
as E1856–97(2002).E1856–97(2008). DOI: 10.1520/E1856-97R08.10.1520/E1856-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3.2.1.1 Discussion—
Resolution may depend on the value (magnitude) of the quantity being measured.
3.2.1.2 Discussion—
1
For paper charts or analog indicators, the resolution should not be assumed to be better (smaller) than ⁄10 of the spacing between
graduations. For digital devices, the best resolution potentially achievable is the smallest difference between two different readings
given by the display.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1856 − 13
3.2.1.3 Discussion—
For both analog and digital devices, the actual resolution can be significantly poorer than described above, due to factors such as
noise, friction, etc.
3.3 Definitions:Definitions of Terms Specific to This Standard:
3.3.1 basic data—data, n—basic data are the digital equivalents of analog counterparts, such as force and displacement
measurements, which under static conditions are traceable to national standards (see Fig. 1).
3.3.2 computerized data acquisition system—a device that collects basic data from a universal testing machine during a test and
calculates and presents derived data based on the basic data collected.
3.3.3 derived data—data, n—derived data are additional numbers derived from the basic data through computation using
software algorithms, such as a peak force or a modulus value.
3.3.4 data acquisition rate—rate, n—data acquisition rate is defined as the rate at which digital samples of each wave-form (that
is, force, strain, displacement, and so forth) are acquired, expressed in sam
...