Temperature Compensation Techniques / Richard Friedman
- Conference Author
- Symposium on Elevated Temperature Strain Gages (1957 : Philadelphia, Pa.)
- Physical Description
- 1 online resource (5 pages) : illustrations, figures, tables
- Additional Creators
- Friedman, Richard, American Society for Testing and Materials, and ASTM International
Access Online
- Restrictions on Access
- Subscription required for access to full text.
License restrictions may limit access. - Summary
- Before going into a discussion of temperature compensation techniques, it is important to consider for a moment the kind of information a strain gage can provide under constant or variable high temperature conditions. Under constant temperature conditions, it is possible to allow time for all specimen parts to come to the same temperature before an external load is applied. If the entire specimen is made of the same material, it may be considered unstressed although the various parts of the specimen have new dimensions and the strength characteristics have changed. This assumes that the specimen is free to expand without restraint. If a load is applied to the specimen, strain gages suitably mounted on the specimen should measure strain due to applied load. Under conditions of rapid heating, we know that thinner sections will increase in temperature more rapidly than thicker sections and strains develop in the specimen due to structural restraints. These strains are to be measured as well as strains due to externally applied loads. It would seem that an acceptable device for measuring strain should provide very low, ideally zero, output with change in temperature when applied to a homogeneous specimen. It is only natural that in the development of such a gage, the greatest emphasis be placed on a resistance type strain gage, since this gage has served so well for all types of strain measurements under ordinary temperature conditions. It is also important to consider that millions of dollars have been invested in instrumentation equipment for use with resistance strain gages.
- Dates of Publication and/or Sequential Designation
- Volume 1958, Issue 230 (January 1958)
- Subject(s)
- ISBN
- 9780803159501 (e-ISBN)
9780803161047
0803161042 - Digital File Characteristics
- text file PDF
- Bibliography Note
- Includes bibliographical references.
- Other Forms
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition. - Reproduction Note
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1958. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details
- Mode of access: World Wide Web.
- Source of Acquisition
- ASTM International PDF Purchase price USD25.
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