ASTM G163-10
(Guide)Standard Guide for Digital Data Acquisition in Wear and Friction Measurements (Withdrawn 2016)
Standard Guide for Digital Data Acquisition in Wear and Friction Measurements (Withdrawn 2016)
SIGNIFICANCE AND USE
This guide illustrates the steps and considerations involved with digital data acquisition. While analog recording of wear and friction data has been in the past, digital data acquisition and storage is used extensively. It is important that DAQ users understand how data is collected and stored and how data manipulation may affect raw data integrity.
Multi-station wear and friction testing is increasing in use, and because of the increased volume of data in such approaches, the use of digital data acquisition facilitates such testing.
The same hardware and software used for the initial analog data conversion to digital form can often also be used for initial data processing, for example, multiple-point averaging. This can conveniently lead to computer-based storage of processed data in digital form. However, where possible, the storage of unfiltered (software filters) and unmanipulated data will allow reevaluation of original data should calibration coefficients need to be adjusted.
Databases are frequently constructed in computerized format (see Guide G118) in order to hold large amounts of wear and friction data from laboratory test programs.
SCOPE
1.1 This guide covers the providing of general guidance in applying hardware and software to digitally acquire wear and friction data in laboratory test systems. It points out important considerations in such data acquisition. It does not make specific recommendations or discuss specific details regarding commercial hardware or software.
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.
WITHDRAWN RATIONALE
This guide covered the providing of general guidance in applying hardware and software to digitally acquire wear and friction data in laboratory test systems. It pointed out important considerations in such data acquisition. It did not make specific recommendations or discuss specific details regarding commercial hardware or software.
Formerly under the jurisdiction of Committee G02 on Wear and Erosion, this guide was withdrawn in November 2016. This standard is being withdrawn without replacement due to its limited use by industry.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: G163 − 10
StandardGuide for
1
Digital Data Acquisition in Wear and Friction Measurements
This standard is issued under the fixed designation G163; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 coeffıcient of friction, n—thedimensionlessratioofthe
friction force between two bodies to the normal force pressing
1.1 This guide covers the providing of general guidance in
the bodies together.
applying hardware and software to digitally acquire wear and
3.1.2 wear, n—alteration of a solid surface by progressive
friction data in laboratory test systems. It points out important
loss or progressive displacement of material due to relative
considerations in such data acquisition. It does not make
motion between that surface and a contacting substance or
specific recommendations or discuss specific details regarding
substances. G40
commercial hardware or software.
3.2 Definitions of Terms Specific to This Standard:
1.2 The values stated in SI units are to be regarded as
3.2.1 hardware, n—mechanical and electronic components
standard. No other units of measurement are included in this
in instrumentation used to acquire data.
standard.
3.2.2 software, n—computer code that can be executed to
1.3 This standard does not purport to address all of the
control hardware systems and store data.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Guide
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4.1 Several important issues relating to digital data acquisi-
tion in wear and friction measurements are identified and
2. Referenced Documents
explained. Hardware and software choices are described in
2
2.1 ASTM Standards: general terms, along with some important considerations in
G40Terminology Relating to Wear and Erosion data storage.
G77Test Method for Ranking Resistance of Materials to
5. Significance and Use
Sliding Wear Using Block-on-Ring Wear Test
G83Test Method for Wear Testing with a Crossed-Cylinder
5.1 This guide illustrates the steps and considerations in-
3
Apparatus (Withdrawn 2005)
volved with digital data acquisition.While analog recording of
G99Test Method for Wear Testing with a Pin-on-Disk
wear and friction data has been in the past, digital data
Apparatus
acquisition and storage is used extensively. It is important that
G115Guide for Measuring and Reporting Friction Coeffi-
DAQ users understand how data is collected and stored and
cients
how data manipulation may affect raw data integrity.
G118Guide for Recommended Format of Wear Test Data
5.2 Multi-station wear and friction testing is increasing in
Suitable for Databases
use, and because of the increased volume of data in such
approaches, the use of digital data acquisition facilitates such
3. Terminology
testing.
3.1 Definitions:
5.3 The same hardware and software used for the initial
analog data conversion to digital form can often also be used
1
This guide is under the jurisdiction of ASTM Committee G02 on Wear and
for initial data processing, for example, multiple-point averag-
Erosion and is the direct responsibility of Subcommittee G02.20 on Data Acquisi-
ing. This can conveniently lead to computer-based storage of
tion in Tribosystems.
processed data in digital form. However, where possible, the
Current edition approved April 1, 2010. Published April 2010. Originally
approved in 1999. Last previous edition approved in 2004 as G163–99(2004). DOI:
storage of unfiltered (software filters) and unmanipulated data
10.1520/G0163-10.
will allow reevaluation of original data should calibration
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
coefficients need to be adjusted.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
5.4 Databases are frequently constructed in computerized
the ASTM website.
3
format (see Guide G118) in order to hold large amounts of
The last approved version of this historical standard is referenced on
www.astm.org. wear and friction data from laboratory test programs.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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G163 − 10
6. Hardware and Software in the data. For multi-channel systems, the overall sampling
rate must be increased in proportion to the number of channels
6.1 Hardware—Necessary electronic components
...
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